Various techniques are provided to reduce shading in thermal images. In one example, a method includes receiving a captured thermal image having an original resolution, wherein the captured thermal image comprises scene information and shading information. The method includes processing the captured thermal image to generate a plurality of downscaled images each having an associated reduced resolution lower than the original resolution and different from each other, wherein the downscaled images exhibit reduced scene information in relation to the captured thermal image. The method includes generating a shading image using the downscaled images. The method includes adjusting the captured thermal image using the shading image to generate a processed thermal image with reduced shading information in relation to the captured thermal image. Additional methods and systems are also provided.
Microbolometer systems and methods are provided herein. For example, an infrared imaging device includes a substrate having contacts and a surface. The surface defines a plane. The infrared imaging device further includes a microbolometer array coupled to the substrate. Each microbolometer of the microbolometer array includes a cross-section having a first section, a second section substantially parallel to the first section, and a third section joining the first section and the second section.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
G01J 5/24 - Use of specially adapted circuits, e.g. bridge circuits
Techniques are provided to provide local contrast enhanced images. In one example, a method includes receiving an image comprising a plurality of pixels having associated pixel values. The method also includes calculating a plurality of sums of subsets of the pixel values. Each subset comprises the pixels of a box extending from an origin of the image to an associated one of the pixels. The method also includes selecting one of the pixels to be filtered. The method also includes identifying a kernel of pixels associated with the selected pixel. The method also includes low pass filtering the pixel value associated with the selected pixel using the calculated sums. Additional methods and systems are also provided.
Techniques for atmospheric absorption determination using embedded sensor data are provided. In one example, a system includes a housing. The system further includes a sensing device within the housing. The sensing device is configured to determine a humidity within the housing and a temperature within the housing. The system further includes a logic device. The logic device is configured to compensate the humidity and the temperature based on a location of the sensing device within the housing relative to heat sources within the housing. The logic device is further configured to determine a moisture value based on compensation of the humidity and the temperature. The logic device is further configured to determine an atmospheric absorption value based on the moisture value. Related devices and methods are also provided.
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
H04N 23/23 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only from thermal infrared radiation
Techniques for facilitating athermalized lens systems and methods are provided. In one example, an imaging device includes a lens system. The lens system includes a first lens element configured to transmit electromagnetic radiation associated with a scene. The lens system further includes a second lens element configured to receive the electromagnetic radiation from the first lens element and transmit the electromagnetic radiation. The lens system further includes a third lens element configured to receive the electromagnetic radiation from the second lens element and transmit the electromagnetic radiation. The first and third lens element include As40Se60 and the second lens element includes Ge22As20Se58 or Ge28Sb12Se60. The imaging device further includes a detector array including a plurality of detectors. Each detector is configured to receive a portion of the electromagnetic radiation from the lens system and generate an infrared image based on the electromagnetic radiation. Related methods and systems are also provided.
A system includes a linear flexure bearing including an integral one-piece plate. The plate has a first portion, a second portion surrounding the first portion, and a flexing region between the first and second portions. At least one of the first and second portions is thicker than the flexing region. Other features are also provided.
An apparatus has a lens assembly which has: a front region with an entrance window of the lens assembly; a window structure at the entrance window; a back region; a lens between the window structure and the back region; and a heater coupled to heat the window structure. The lens assembly includes a reflective surface. The front region is on a first side of the reflective surface. The back region is on a second side of the reflective surface. The reflective surface reflects thermal radiation generated by the heater. The reflected radiation is reflected towards the first side. Other features are also provided.
Techniques are disclosed for providing thermal imaging and wireless communication systems and methods. In one example, a thermal imaging system includes a thermal imaging device configured to capture thermal image data associated with a scene, generate user-viewable thermal images based on the thermal image data, and wirelessly transmit data indicative of the user-viewable thermal images. The thermal imaging system further includes a receiver device configured to receive the data from the thermal imaging device and transmit the data to a user device. Related methods, vehicles, and devices are also provided.
Systems and methods related to steerable fields of view are provided. In one embodiment, a system includes an image sensor configured to capture a field of view. The system further includes an optical assembly including an optical element configured to direct the field of view to the image sensor. The system further includes a logic circuit. The logic circuit may send a control signal to the optical assembly to cause rotation of the optical element about an axis associated with the image sensor to adjust the field of view. The logic circuit may send a control signal to the image sensor to cause one or more images of the object to be captured. The logic circuit may calibrate the image sensor based on the one or more images of the object. Related devices and methods are also provided.
Cryocooler health monitoring systems and methods are provided. In one example, a method includes determining, for each setpoint temperature of a plurality of setpoint temperatures, a respective power applied to a cryocooler to set a cold tip of the cryocooler to the setpoint temperature. The method further includes determining a first load line associated with the cold tip based on the plurality of setpoint temperatures and the respective powers applied to the cryocooler. The method further includes determining a health metric associated with the cold tip based on the first load line and a reference load line associated with the cryocooler. Related devices and systems are also provided.
Techniques for facilitating wide field of view (FOV) imaging systems and methods are provided. In one example, an imaging device includes a lens barrel. The lens barrel includes a first body portion including a first lens element at least partially disposed therein, a second body portion including a second lens element and a third lens element at least partially disposed therein, and a snap-fit mechanism. The first, second, and third lens elements include a lens system configured to pass electromagnetic radiation from a scene to an image capture component. The snap-fit mechanism includes a plurality of finger members extended from the first body portion and a plurality of complementary notches in the second body portion. The finger members are configured to engage with the notches to releasably secure the first body portion to the second body portion. Related methods and systems are also provided.
G03B 17/14 - Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
H04N 23/23 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only from thermal infrared radiation
A cryocooler is disclosed. The cryocooler may include a magnetic spring, a regenerator/displacer, a working fluid, and a cold finger configured to contain the working fluid in a closed system, and to contain the regenerator/displacer that is configured to travel linearly within the cold finger. The magnetic spring may provide a force to cause the regenerator/displacer to return to a center position during thermal cycle operation of the cryocooler. Additional systems and related methods are also provided.
F25B 9/14 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
Imager optical systems and methods are provided. In one example, an imaging device includes a window configured to transmit electromagnetic radiation associated with a scene. The imaging device further includes a lens system. The lens system includes a first lens element configured to receive the electromagnetic radiation from the window and transmit the electromagnetic radiation. An aperture stop is positioned between the window and a surface of the first lens element adjacent to the window. The lens system further includes a second lens element adjacent to the first lens element and configured to receive the electromagnetic radiation and direct the electromagnetic radiation to the detector array. The imaging device further includes a detector array including detectors. Each detector is configured to receive the electromagnetic radiation from the lens system and generate a thermal image based on the electromagnetic radiation. Related methods and systems are also provided.
H04N 23/23 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only from thermal infrared radiation
G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
Various techniques are provided to reduce shading in thermal images. In one example, a method includes receiving a captured thermal image having an original resolution, wherein the captured thermal image comprises scene information and shading information. The method includes processing the captured thermal image to generate a plurality of downscaled images each having an associated reduced resolution lower than the original resolution and different from each other, wherein the downscaled images exhibit reduced scene information in relation to the captured thermal image. The method includes generating a shading image using the downscaled images. The method includes adjusting the captured thermal image using the shading image to generate a processed thermal image with reduced shading information in relation to the captured thermal image. Additional methods and systems are also provided.
H04N 9/31 - Projection devices for colour picture display
H04N 25/61 - Noise processing, e.g. detecting, correcting, reducing or removing noise the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
17.
VACUUM HEALTH DETECTION FOR IMAGING SYSTEMS AND METHODS
Techniques for facilitating vacuum health detection for imaging systems and methods are provided. In one example, an imaging device includes a detector configured to generate a first reference signal. The imaging device further includes a buffer circuit configured to store a value of the first reference signal. The imaging device further includes a processing circuit coupled to the buffer circuit. The processing circuit is configured to determine a first predetermined value based on a first temperature associated with the detector. The processing circuit is further configured to determine vacuum integrity associated with the detector based at least on the value of the first reference signal and the first predetermined value. Related methods and systems are also provided.
Various techniques are provided for training a neural network to classify images. A convolutional neural network (CNN) is trained using training dataset comprising a plurality of synthetic images. The CNN training process tracks image-related metrics and other informative metrics as the training dataset is processed. The trained inference CNN may then be tested using a validation dataset of real images to generate performance results (e.g., whether a training image was properly or improperly labeled by the trained inference CNN). In one or more embodiments, a training dataset and analysis engine extracts and analyzes the informative metrics and performance results, generates parameters for a modified training dataset to improve CNN performance, and generates corresponding instructions to a synthetic image generator to generate a new training dataset. The process repeats in an iterative fashion to build a final training dataset for use in training an inference CNN.
Techniques for facilitating wide field of view (FOV) imaging systems and methods are provided. In one example, an imaging device includes a lens system including a first lens group and a second lens group. The first lens group includes at least one spherical lens element and is associated with a first FOV. The first lens group is configured to transmit electromagnetic radiation associated with a scene. The second lens group includes wafer level optics aspherical lens elements and is associated with a second FOV narrower than the first FOV. The second lens group is configured to transmit the electromagnetic radiation received from the first lens group. The imaging device further includes a detector array including detectors. Each detector is configured to receive a portion of the electromagnetic radiation from the lens system and generate a thermal image based on the electromagnetic radiation. Related methods and systems are also provided.
Techniques for facilitating wide field of view (FOV) imaging systems and methods are provided. In one example, an imaging device includes a lens system including a first lens group and a second lens group. The first lens group includes at least one spherical lens element and is associated with a first FOV. The first lens group is configured to transmit electromagnetic radiation associated with a scene. The second lens group includes wafer level optics aspherical lens elements and is associated with a second FOV narrower than the first FOV. The second lens group is configured to transmit the electromagnetic radiation received from the first lens group. The imaging device further includes a detector array including detectors. Each detector is configured to receive a portion of the electromagnetic radiation from the lens system and generate a thermal image based on the electromagnetic radiation. Related methods and systems are also provided.
G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
Techniques for facilitating imager verification systems and methods are provided. In one example, an imaging device includes a focal plane array. The focal plane array includes a detector array including a plurality of detectors, where each of the plurality of detectors is configured to detect electromagnetic radiation to obtain image data. The focal plane array further includes a readout circuit configured to perform a readout to obtain the image data from each of the plurality of detectors. The imaging device further includes a processing circuit configured to perform a verification of the imaging device based at least on the image data. Related methods and systems are also provided.
H04N 25/671 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction
H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
H04N 25/69 - SSIS comprising testing or correcting structures for circuits other than pixel cells
H04N 25/78 - Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters
H03M 13/09 - Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
22.
IMAGING SYSTEM NODE LOCK DEPENDENCY DISCOVERY SYSTEMS AND METHODS
Various techniques are provided to generate a list of node names that cause a node in a machine vision camera to be locked. In one example, a method includes receiving a file identifying a plurality of nodes corresponding to associated features of a device, wherein each of the nodes has an associated plurality of settings and each of the nodes is configured to be in either an unlocked state to permit adjustment of its associated settings by a user or a locked state to prevent adjustment of its associated settings by the user; receiving a request by the user that identifies a first one of the nodes in the locked state; parsing at least a portion of the file to identify a second one of the nodes having associated settings on which the locked state of the first node is contingent; and presenting the associated settings of the second node to the user. Additional methods and systems are also provided.
Various techniques are provided to enclose at least a portion of a thermal imaging system in a thermoplastic material to create a waterproof thermal imaging system and encapsulate associated electrical components. In one example, a method includes placing at least a portion of a thermal imaging system comprising a plurality of exposed electronic components into a mold. The method also includes injecting a thermoplastic material into the mold to deposit the thermoplastic material onto the electronic components and encapsulate the electronic components in an overmolded solid enclosure formed by the thermoplastic material. Additional methods and systems are also provided.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof
B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
24.
Analog-to-digital converter calibration systems and methods
Techniques for facilitating analog-to-digital converter calibrations are provided. In one example, a method includes, for each of a plurality of time instances, generating a first ramp signal started at the time instance relative to a respective start of a first counter signal and generating a respective comparator output signal based on the first ramp signal and a first threshold signal. The method further includes capturing a respective first value of the first ramp signal in response to a transition of the respective comparator output signal. The method further includes determining a respective second counter value of a second counter signal based on the respective first value. The method further includes determining a scaling factor based on the second counter values and the time instances. Each of the first values is associated with the same counter value of the first counter signal. Related devices and systems are also provided.
H04N 25/617 - Noise processing, e.g. detecting, correcting, reducing or removing noise for reducing electromagnetic interference, e.g. clocking noise
H04N 25/771 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising storage means other than floating diffusion
H04N 25/772 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters
25.
ATMOSPHERIC ABSORPTION DETERMINATION USING EMBEDDED SENSOR DATA
Techniques for atmospheric absorption determination using embedded sensor data are provided. In one example, a system includes a housing. The system further includes a sensing device within the housing. The sensing device is configured to determine a humidity within the housing and a. temperature within the housing. The system further includes a logic device. The logic device is configured to compensate the humidity and the temperature based on a location of the sensing device within the housing relative to heat sources within the housing. The logic device is further configured to determine a moisture value based on compensation of the humidity and the temperature. The logic device is further configured to determine an atmospheric absorption value based on the moisture value. Related devices and methods are also provided.
Techniques for facilitating unit cell selection verification systems and methods are provided. In one example, a method includes detecting, by each detector of a focal plane array (FPA), electromagnetic radiation. Each detector is selectively coupled to a readout circuit of the FPA via a selection circuit of the FPA. The method further includes, during a frame period, applying a predetermined signal pattern to a portion of the selection circuit, where the portion is associated with a subset of detectors of the FPA, and performing a readout of the FPA to obtain a respective output signal associated with each respective detector of the FPA. The method further includes determining whether the portion of the selection circuit is operating properly based at least on the output signal associated with the detectors of the subset from the readout. Related systems and devices are also provided.
Techniques for facilitating burn-in mitigation and associated imaging systems and methods are provided. In one example, a method applying a bias signal to a sensor array of an imaging device to increase a temperature of the sensor array to perform burn-in mitigation. The method further includes reducing the temperature of the sensor array. The method further includes determining whether a burn-in is present in the sensor array. Related systems and devices are also provided.
H04N 25/683 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects by defect estimation performed on the scene signal, e.g. real time or on the fly detection
28.
SUPERHYDROPHOBIC SURFACE IN THERMAL INFRARED IMAGING DEVICE
Various techniques are provided for prevent excessive accumulation of moisture onto a surface of an optical component of an imaging device. In one example, a method includes providing a bulk layer of an optical component of a thermal imaging system, wherein the bulk layer is configured to pass thermal radiation. The method further includes depositing a diamond like coating (DLC) to provide an external surface of the optical component, wherein the DLC exhibits a resistance to abrasion. The method further includes forming a plurality of nanostructures in the optical component, wherein the nanostructures exhibit a superhydrophobic property to prevent excessive moisture accumulation on the external surface of the optical component. Additional methods and systems are also provided.
Techniques for facilitating temperature compensation are provided. In one example, an infrared imaging system includes a focal plane array configured to capture radiation from a scene and generate image data based on the radiation. The focal plane array further captures radiation from an element associated with the infrared imaging system during capture of the radiation from the scene. The infrared imaging system further includes a temperature sensor configured to determine a temperature of the focal plane array. The infrared imaging system further includes a processing circuit configured to determine a temperature associated with the element based on the temperature of the focal plane array. The processing circuit is further configured to determine a temperature associated with an object in the scene based on the infrared image data, the temperature associated with the element, and the temperature of the focal plane array. Related devices and methods are also provided.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
G01J 5/24 - Use of specially adapted circuits, e.g. bridge circuits
G01J 5/70 - Passive compensation of pyrometer measurements, e.g. using ambient temperature sensing or sensing of temperature within housing
30.
RADAR INSTALLATION AND CALIBRATION SYSTEMS AND METHODS
Radar installation and calibration systems and methods are provided. In one example, a controller of a radar system receives installation parameters associated with an installation of a radar system. A present orientation of a radar device of the radar system is determined and compared to the installation parameters to determine a deviation of the present orientation from the installation parameters. The deviation is sent to a coordinating device associated with the radar device to cause the deviation to be outputted as installation feedback through the coordinating device. Related systems and methods are also provided.
G01S 13/66 - Radar-tracking systemsAnalogous systems
G01S 7/24 - Cathode-ray tube displays the display being orientated or displaced in accordance with movement of object carrying the transmitting and receiving apparatus, e.g. true-motion radar
G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
31.
NON-UNIFORMITY CORRECTION CALIBRATIONS IN INFRARED IMAGING SYSTEMS AND METHODS
Techniques for facilitating non-uniformity correction calibrations are provided. In one example, an infrared imaging system includes an infrared imager and a logic device. The infrared imager is configured to capture a first set of infrared images of a reference object using a first integration time. The infrared imager is further configured to capture a second set of infrared images of the reference object using a second integration time different from the first integration time. The logic device is configured to determine a dark current correction map based on the second set of infrared images. The logic device is further configured to generate a non-uniformity correction map based on the dark current correction map. Related devices and methods are also provided.
Techniques for facilitating non-uniformity correction calibrations are provided. In one example, an infrared imaging system includes an infrared imager and a logic device. The infrared imager is configured to capture a set of infrared images of a reference object. The reference object is substantially at a single temperature. The logic device is configured to initiate a run-time calibration of the infrared imager and generate a gain map based on the set of infrared images and an offset map associated with the infrared imager. Related devices and methods are also provided.
Multispectral imaging and related techniques are provided to detect thermal and non-thermal anomalies at reduced false detection rates. A multispectral imaging system includes an infrared light imaging sensor that captures infrared image data in a first spectral band, of a scene and an ultraviolet light imaging sensor that captures ultraviolet image data in a second spectral band, of the scene. The system also includes a processor that combines the ultraviolet image data and the infrared image data to generate composite image data, determines a ratio of a first radiant intensity in the first spectral band to a second radiant intensity in the second spectral band, from the composite image data, and determines whether the ratio corresponds to a predetermined radiant intensity ratio of a known thermal or electrical anomaly. The processor can detect the thermal or electrical anomaly when the determined ratio corresponds to the predetermined radiant intensity ratio.
Techniques for facilitating readout addressing verification systems and methods are provided. In one example, an imaging device includes a focal plane array (FPA). The FPA includes a detector array. The detector array includes detectors. Each detector is configured to detect electromagnetic radiation. The FPA further includes a readout circuit configured to perform a readout to obtain image data from each of the detectors. The imaging device further includes a processing circuit. The processing circuit is configured to apply, to the FPA, a plurality of control signals associated with a readout of a subset of the detectors. The processing circuit is further configured to generate a verification value based on the plurality of control signals. The processing circuit is further configured to perform a verification of the plurality of control signals based at least on the verification value. Related methods and systems are also provided.
Techniques to test infrared detectors are disclosed. In one example, a focal plane array for an imaging system includes a plurality of infrared detectors arranged in a plurality of rows and columns where each of the infrared detectors is configured to provide an output signal in response to externally received thermal radiation associated with a scene. A plurality of offset circuits of the imaging system may be electrically coupled to the focal plane array and configured to selectively superimpose fixed-pattern noise on the output signals to provide modified output signals. A readout integrated circuit of the imaging system may be configured to provide the modified output signals for processing to test an integrity of the infrared detectors. Modified output signals that are outside an expected output range based on the thermal radiation and known offset may be determined defective. Related methods, devices, and systems are also provided.
Techniques are disclosed for systems and methods to reduce the overall physical size of and mechanical vibrations within a cryocooler/refrigeration system configured to provide cryogenic and/or general cooling of a device or sensor system. A refrigeration system includes an annular linear compressor configured to generate a compression wave of working gas for the system. The annular linear compressor includes an annular cylinder head with a pressure plate and a neck protruding from one side of the annular cylinder head, a compressor housing configured to mate with the pressure plate and the neck of the annular cylinder head and form a sealed cavity therebetween, and an annular cylinder assembly disposed within the sealed cavity and about the neck of the annular cylinder head. The annular cylinder assembly includes an annular piston assembly disposed within an annular cylinder of the annular cylinder assembly.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
37.
LINEAR FLEXURE BEARINGS HAVING NON-UNIFORM THICKNESS, AND SYSTEMS AND METHODS FOR USING AND MAKING THE SAME
A system includes a linear flexure bearing including an integral one-piece plate. The plate has a first portion, a second portion surrounding the first portion, and a flexing region between the first and second portions. At least one of the first and second portions is thicker than the flexing region. Other features are also provided.
An apparatus has a lens assembly which has: a front region with an entrance window of the lens assembly; a window structure at the entrance window; a back region; a lens between the window structure and the back region; and a heater coupled to heat the window structure. The lens assembly includes a reflective surface. The front region is on a first side of the reflective surface. The back region is on a second side of the reflective surface. The reflective surface reflects thermal radiation generated by the heater. The reflected radiation is reflected towards the first side. Other features are also provided.
Techniques are disclosed for radar data denoising systems and methods. In one example, a method includes receiving radar data. The method further includes performing a first transform associated with the radar data to obtain transformed radar data. The transformed radar data is associated with a location parameter and a variance that is independent of the location parameter. The method further includes performing a second transform of the transformed radar data to obtain dimensionality-reduced radar data. The method further includes filtering the dimensionality-reduced radar data to obtain denoised dimensionality-reduced radar data. Related devices and systems are also provided.
G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
An adjustable teleconverter is provided that may be selectively adjusted between a base lens configuration and one or more tele-lens configurations without adding, removing, or replacing lenses from an optical system. In one example, a system includes a front lens group configured to form a first image at an intermediate image plane in response to radiation from a scene. The system also includes a teleconverter configured to project the first image to form a second image at a final image plane. The teleconverter comprises a relay lens group configured to be selectively positioned between the intermediate image plane and the final image plane to adjust a magnification of the second image. Additional methods, devices, and systems are also provided.
Systems and methods according to one or more embodiments are provided for annealing a chalcogenide lens at an elevated temperature to accelerate release of internal stress within the chalcogenide lens caused during a molding process that formed the chalcogenide lens. In particular, the annealing process includes gradually heating the chalcogenide lens to a dwell temperature, maintaining the chalcogenide lens at the dwell temperature for a predetermined period of time, and gradually cooling the chalcogenide lens from the dwell temperature. The annealing process stabilizes the shape, the effective focal length, and/or the modulation transfer function of the chalcogenide lens. Associated optical assemblies and infrared imaging devices are also described.
Techniques are provided to identify, correct, and/or replace anomalous pixels. In one example, a method includes receiving an image frame comprising a plurality of pixels arranged in a plurality of rows and columns. The pixels comprise image data associated with a scene and fixed pattern noise introduced by an imaging device. The method also includes performing a first process on a first set of the pixels to determine associated correction terms configured to reduce the fixed pattern noise, and applying the correction terms to the first set of the pixels in response to the first process. The method also includes performing a second process on a second set of the pixels to determine whether to replace the second set of the pixels to reduce the fixed pattern noise, and replacing at least a subset of the second set of the pixels in response to the second process. Additional methods and systems are also provided.
Systems and methods related to steerable fields of view are provided. In one embodiment, a system includes an image sensor configured to capture a field of view. The system further includes an optical assembly including an optical element configured to direct the field of view to the image sensor. The system further includes a logic circuit. The logic circuit may send a control signal to the optical assembly to cause rotation of the optical element about an axis associated with the image sensor to adjust the field of view. The logic circuit may send a control signal to the image sensor to cause one or more images of the object to be captured. The logic circuit may calibrate the image sensor based on the one or more images of the object. Related devices and methods are also provided.
G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
Techniques are disclosed for providing vehicular radiometric calibration systems and methods. In one example, a method includes capturing, by an array of infrared sensors mounted on a vehicle, a thermal image of a scene during navigation of the vehicle and/or while the vehicle is stationary. The thermal image comprises a plurality of pixel values. Each infrared sensor of the array is associated with a respective one of the plurality of pixel values. The method further includes determining temperature data associated with a portion of the scene, where the portion is associated with a subset of the plurality of pixel values. The method further includes generating a correction value based on the thermal image and the temperature data. Related systems, vehicles, and devices are also provided.
G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
Techniques for facilitating image color correction are provided. In one example, a method includes receiving an image. The method further includes determining, based at least on the image, a first scaling value and a second scaling value. The method further includes applying the first scaling value to the image to obtain a scaled image. The method further includes applying a color correction matrix (CCM) to the scaled image to obtain a CCM image. The method further includes applying the second scaling value to the CCM image to obtain a color corrected image. Related devices and systems are also provided.
Various techniques are disclosed to provide for reducing undesired reflections in captured images. In one example, a system includes an optical element configured to pass radiation from a scene. The system also includes an imager configured to capture images in response to the scene radiation and reflect at least a portion of the scene radiation to the optical element. The optical element comprises a surface with a convex radius of curvature facing the imager and configured to receive and return the reflected radiation toward the imager in a distribution pattern to reduce a magnitude of the reflected radiation in the captured images. Additional methods, devices, and systems are also provided.
Techniques for facilitating data rate control for image transmission are provided. In one example, a system includes an image sensor device configured to capture image data based on a frame transmission rate. The system further comprises a processing circuit configured to generate, based on the image data, an image for transmission by the processing circuit via a frame transmission process. The frame transmission process includes transmitting images according to the frame transmission rate. The processing circuit is further configured to determine a data rate based on the image and the frame transmission rate. The processing circuit is further configured to selectively adjust the frame transmission process based at least on the data rate and a data rate threshold. Related devices and methods are also provided.
High resolution image target classification systems and methods include a proposal component configured to receive a first set data associated with a scene, the first set of data including at least one image of the scene, a multistage neural network comprising a plurality of neural networks, each neural network trained to receive a region of interest and output an object classification in accordance with an associated resource allocation, and an attention coordinator configured to determine regions of interest in the image and allocate each determined region to one of the plurality of neural networks from the multi-scale neural network, in accordance with available system resources. The system may be configured to optimize a probability of detecting objects in the image, while minimizing a number of pixels processed through the multi-scale neural network.
Multispectral imaging and navigation systems and related techniques are provided to improve the operation of manned or unmanned mobile platforms, including mobile sensor or survey platforms. A multispectral navigation system includes a multispectral imaging system and a logic device configured to communicate with the multispectral imaging system. The multispectral imaging system includes a multispectral imaging module configured to provide multispectral image data corresponding to a projected course for a mobile platform. The logic device is configured to receive the multispectral image data, receive orientation and/or position data corresponding to the multispectral image data, and generate maneuvering obstacle information corresponding to the projected course based on the orientation and/or position data and the multispectral image data.
G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
G05D 1/02 - Control of position or course in two dimensions
B64C 39/02 - Aircraft not otherwise provided for characterised by special use
G06V 20/17 - Terrestrial scenes taken from planes or by drones
G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
G06V 10/143 - Sensing or illuminating at different wavelengths
G06V 10/147 - Details of sensors, e.g. sensor lenses
Thermal imaging and navigation systems and related techniques are provided to improve the operation of manned or unmanned mobile platforms, including passenger vehicles. A thermal imaging navigation system includes a thermal imaging system and a logic device configured to communicate with the thermal imaging system. The thermal imaging system includes a thermal imaging module configured to provide thermal image data corresponding to a projected course for a mobile platform. The logic device is configured to receive the thermal image data, receive orientation and/or position data corresponding to the thermal image data, and generate maneuvering obstacle information corresponding to the projected course based, at least in part, on the orientation and/or position data and/or the thermal image data.
Light weight lens barrel systems and methods are provided. In one example, an imaging device includes a lens barrel including a body and a plurality of focusing fins extending from the body. The imaging device further includes a lens system disposed within the lens barrel and configured to receive electromagnetic radiation and direct the electromagnetic radiation. The imaging device further includes a detector array including a plurality of detectors. Each of the plurality of detectors is configured to receive the electromagnetic radiation from the lens system and generate an image based on the electromagnetic radiation. Related methods and systems are also provided.
G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
G02B 13/14 - Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
Various techniques are provided for protecting an infrared imager of a wafer level package. In one example, a method includes maintaining a protective member in a first position blocking an aperture of a wafer level package of an imaging system to protect an infrared imager disposed within the wafer level package. The method also includes attaching an optical assembly to the imaging system. The method also includes translating the protective member from the first position to a second position in response to a first force applied by the optical assembly against the imaging system during the attaching. The protective member is displaced from the aperture in the second position to expose the aperture to the optical assembly. Additional methods and systems are also provided.
Techniques for facilitating non-uniformity mitigation for imaging systems and methods are provided. In one example, a method includes cropping an image based on a defect in the image to obtain a cropped image. The method further includes cropping a supplemental flat field correction (SFFC) map based on the defect in the image to obtain a cropped SFFC map. The method further includes determining a scaling value of a scaling term based at least on a cost function. The method further includes scaling the SFFC map based on the scaling value to obtain a scaled SFFC map. Related devices and systems are also provided.
Multi-timescale Doppler processing and associated systems and methods are provided. In one example, a receiver receives radar return data, where the radar return data is associated with reflections, from a scene, of a plurality of transmitted radar signals. The radar return data is processed to obtain a plurality of sets of detection data, where each set of detection data of the plurality of sets of detection data is associated with a respective processing size. Target data associated with the scene is generated based at least in part on the plurality of sets of detection data. Related systems and methods are also provided.
G01S 13/50 - Systems of measurement based on relative movement of target
G01S 13/72 - Radar-tracking systemsAnalogous systems for two-dimensional tracking, e.g. combination of angle and range tracking, track-while-scan radar
G01S 13/04 - Systems determining presence of a target
56.
Aspect ratio modifying imaging systems and methods
Aspect ratio modifying imaging systems and methods are provided. In one example, an infrared imaging device includes at least one lens element configured to transmit electromagnetic radiation associated with a portion of a scene. The portion has a first aspect ratio. The electromagnetic radiation includes mid-wave and/or long-wave infrared light. The at least one lens element has a freeform surface having no translational symmetry and no rotational symmetry. The infrared imaging device further includes a detector array configured to receive image data associated with the electromagnetic radiation from the at least one lens element and generate, based on the image data, an image. The image data has a second aspect ratio different from the first aspect ratio. Each of the first and second aspect ratios is a ratio of a size along a first direction and a size along a second direction orthogonal to the first direction.
Techniques are disclosed for imager health monitoring systems and methods. In one example, a method includes determining a characteristic of an active unit cell of a focal plane array (FPA) and/or a reference unit cell of the FPA. The active unit cell includes a detector selectively shielded from an incident scene. The reference unit cell includes a reference detector shielded from the incident scene. The method further includes determining a state of the FPA based at least in part on the characteristic. The method further includes transmitting an indication of the state of the FPA to selectively cause adjustment of the FPA Related devices and systems are also provided.
H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
B60R 1/22 - Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
H04N 25/21 - Circuitry of solid-state image sensors [SSIS]Control thereof for transforming only infrared radiation into image signals for transforming thermal infrared radiation into image signals
H04N 25/78 - Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters
58.
RADIOMETRIC THERMAL IMAGING IMPROVEMENTS FOR NAVIGATION SYSTEMS AND METHODS
Thermal imaging and navigation systems and related techniques are provided to improve the operation of manned or unmanned mobile platforms, including passenger vehicles. A system includes a thermal imaging device configured to be mounted on a vehicle. The thermal imaging device is configured to, when mounted on the vehicle, capture a first image of a scene encompassing a portion of the vehicle and capture a second image associated with a reflection of the scene from the portion of the vehicle. The system further includes a logic device configured to communicate with the thermal imaging device and determine a disparity map based on the first image and the second image.
G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
G06T 7/521 - Depth or shape recovery from laser ranging, e.g. using interferometryDepth or shape recovery from the projection of structured light
Various techniques are disclosed to provide for detection of temporally anomalous flickering pixels. In one example, a method includes capturing, by a thermal imager of an imaging device, a plurality of thermal images in response to infrared radiation received from a uniform black body, wherein the thermal images comprise a plurality of pixels having associated pixel values. The method also includes determining, for each pixel, a standard deviation of the associated pixel values for the thermal images. The method also includes comparing the standard deviations with a threshold. The method also includes identifying a subset of the pixels as temporally anomalous pixels in response to the comparing. Additional methods, devices, and systems are also provided.
H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
H04N 25/671 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction
60.
INFRARED IMAGING-RELATED UNCERTAINTY GAUGING SYSTEMS AND METHODS
Techniques for facilitating uncertainty gauging for imaging systems and methods are provided. In one example, a method includes determining temperature data associated with infrared image data of a scene. The method further includes receiving at least one parameter associated with the infrared image data. The method further includes determining an uncertainty factor associated with the temperature data based on the at least one parameter. Related devices and systems are also provided.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
61.
Palette and infrared image generation systems and methods
Techniques for facilitating palette and infrared image generation systems and methods are provided. In one example, a method includes receiving user input indicative of a plurality of threshold temperatures to divide a temperature range into a plurality of temperature regions and a respective visual representation mode for each of the plurality of temperature regions. Each of the plurality of temperature regions is bound by at least one of the plurality of threshold temperatures. The respective visual representation mode for each of the plurality of temperature regions is a color mode or a grayscale mode. The method further includes generating a palette based on the user input. Related devices and systems are also provided.
Various techniques are disclosed to provide for automated verification of the performance of embedded artificial neural networks (ANNs). In one example, a method includes converting a reference ANN to generate an embedded ANN for deployment on an imaging device. The method also includes deploying the reference ANN on a host. The method also includes processing predetermined images by the reference ANN on the host to generate host inference results. The method also includes receiving device inference results from the imaging device at the host in response to processing of the predetermined images by the embedded ANN on the imaging device. The method also includes comparing the device inference results with the host inference results to evaluate performance of the embedded ANN in relation to the reference ANN. Additional methods, devices, and systems are also provided.
Techniques are disclosed for facilitating multi-etch detector pixels fabrication. In one example, a method includes forming a semiconductor structure. The semiconductor structure includes a substrate layer, an absorber layer disposed on the substrate layer, a barrier layer disposed on the absorber layer, and a first contact layer disposed on the barrier layer. The method further includes forming the pixels from the semiconductor structure. The forming of the pixels includes performing a first etching operation to remove a portion of at least the first contact layer, and performing a second etching operation to remove a portion of the barrier layer and a portion of the absorber layer. Each of the pixels includes a respective portion of each of the substrate layer, the first contact layer, the barrier layer, and the absorber layer. Related systems and devices are also provided.
Techniques are disclosed for optical imager devices, systems, and methods. In one example, an imaging system includes a focal plane array (FPA) and a light shield. The FPA includes a detector array configured to detect a first portion of electromagnetic radiation and generate a detector signal based on the first portion. The FPA further includes a readout circuit coupled to the detector array and configured to receive the detector signal. The light shield is coupled to the FPA and configured to block a second portion of the electromagnetic radiation. Related devices and methods are also provided.
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
Various techniques are disclosed to provide for improved human body temperature detection using thermal images of an inner canthus. In one example, a method includes capturing a thermal image of a human being using a thermal imager. The method also includes detecting a face and an inner canthus of the human being in the thermal image using an artificial neural network. The method also includes determining a temperature measurement of the inner canthus using corresponding pixels of the thermal image. The method also includes determining a body temperature of the human being using the temperature measurement. Additional methods and systems are also provided.
Techniques are disclosed for facilitating interconnecting semiconductor devices. In one example, a method of interconnecting a first substrate to a second substrate is provided. The method includes forming a first plurality of contacts on the first substrate. The method further includes forming an insulative layer on the first substrate. The method further includes forming a second plurality of contacts on the second substrate. The method further includes joining the first plurality of contacts to the second plurality of contacts to form interconnects between the first substrate and the second substrate. When the first and second substrates are joined, at least a portion of each of the interconnects is surrounded by the insulative layer. Related systems and devices are also provided.
Microbolometer systems and methods are provided herein. For example, an infrared imaging device includes a substrate having contacts and a surface. The surface defines a plane. The infrared imaging device further includes a microbolometer array coupled to the substrate. Each microbolometer of the microbolometer array includes a cross-section having a first section, a second section substantially parallel to the first section, and a third section joining the first section and the second section.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
G01J 5/24 - Use of specially adapted circuits, e.g. bridge circuits
Microbolometer systems and methods are provided herein. For example, an infrared imaging device includes a microbolometer array. The microbolometer array includes a plurality of microbolometers. Each microbolometer includes a microbolometer bridge that includes a first portion and a second portion. The first portion includes a resistive layer configured to capture infrared radiation. The second portion includes a second portion having a plurality of perforations defined therein.
Systems and methods include an infrared camera configured to capture an infrared image of a scene, a visible light camera configured to capture a visible light image of the scene, and a logic device configured to simultaneously capture a pair of images of the scene comprising the infrared image of the scene and the visible image of the scene, align the pair of images so that a pixel location in one of the pair of images has a corresponding pixel location in the other image, classify the visible image, annotate the infrared image based, at least in part, on the classification of the visible image, and add the annotated infrared image to a neural network training dataset for use in training a neural network for infrared image classification.
Various embodiments of the present disclosure may include an imaging system that includes a heating element for de-icing. The heating element may be positioned to heat a lens and the front of the housing of the imaging system. Additionally, imaging system or a portion thereof may be manufactured using a continuous molding process.
G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
H04N 23/52 - Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
H04N 23/55 - Optical parts specially adapted for electronic image sensorsMounting thereof
72.
Analog-to-digital conversion systems and methods with pulse generators
Techniques are disclosed for analog-to-digital conversion systems and methods with pulse generators. In one example, an imaging system includes an analog-to-digital converter (ADC). The ADC includes a comparator configured to generate a comparator output signal based on a first signal and a second signal. The comparator output signal is associated with a first state or a second state. The ADC further includes a pulse generator coupled to the comparator. The pulse generator is configured to generate a pulse signal in response to a transition of the comparator output signal from the first state to the second state. The ADC further includes a memory device coupled to the pulse generator. The memory device is configured to capture a counter value from a counter circuit in response to the pulse signal. The counter value is associated with the detector signal. Related methods are also provided.
Techniques are disclosed for facilitating detection of electromagnetic radiation using superlattice-based detector systems and methods. In one example, an infrared detector includes a first superlattice structure including first periods. Each of the first periods includes a first sub-layer and a second sub-layer adjacent to the first sub-layer. The first and second sub-layers include first and second semiconductor materials. The infrared detector further includes a second superlattice structure disposed on the first superlattice structure. The second superlattice structure includes second periods. Each of the second periods includes a third sub-layer and a fourth sub-layer adjacent to the third sub-layer. The third-sub-layer includes a third semiconductor material. The fourth sub-layer includes a fourth semiconductor material. A p-n junction is formed at an interface within the second superlattice structure or at an interface between the first and second superlattice structures.
H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
74.
Response normalization for overlapped multi-image applications
Systems and methods for registration of image pairs, including camera response function normalization are disclosed and include selecting a pair of images from a set of images, each of the pair of images having associated metadata, determining a camera response function for each of the images in the pair of images using the associated metadata, normalizing each camera response function for across the set of images, and applying the normalized camera response function to the pair of images. A deformation map is generated in a multi-scale process using registration parameters, to deform one of the pair of images to align with another of the pair of images. The image pairs may be selected by identifying image pairs having an overlap that exceeds an overlap threshold, having a sequential proximity in an image series satisfying a proximity threshold, and/or having estimated image capture attitudes within an attitude threshold.
Image pair co-registration systems and methods include receiving a pair of multi-modal images, defining a parametric deformation model, defining a loss function that is minimized when the pair of images are aligned, and performing a multi-scale search to determine deformation parameters that minimize the loss function. The optimized deformation parameters define an alignment of the pair of images. The pair of images may include visible spectrum image and an infrared image. The method further includes resizing the visible spectrum image to match the infrared image, applying at least one lens distortion correction model, and normalizing a dynamic range of each of the pair of images. The multi-scale search may further include resizing the pair of images to a current processing scale, applying adaptive histogram equalization to the pair of images to generate equalized images, applying Gaussian Blur to the equalized images, and optimizing the deformation parameters.
Techniques are disclosed for facilitating dual color detection. In one example, an imaging device includes a first pixel configured to detect first image data associated with a first waveband of electromagnetic radiation. The imaging device further includes a second pixel configured to detect second image data associated with a second waveband of the electromagnetic radiation, where at least a portion of the second waveband does not overlap the first waveband. The imaging device further includes a bias circuit configured to apply a first voltage between the first pixel and a first ground contact, and apply a second voltage between the second pixel and a second ground contact. The first voltage is different from the second voltage. Related methods are also provided.
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
H04N 25/709 - Circuitry for control of the power supply
H04N 25/75 - Circuitry for providing, modifying or processing image signals from the pixel array
77.
Deep learning inference systems and methods for imaging systems
Deep learning inference for imaging systems includes an imaging device comprising an image capture component and a vision processing unit configured to process the image through a first trained inference network to determine a first inference result. A host system trains a neural network for image classification and produces and transmits the first trained inference network to the vision processing unit of the imaging device. The first trained inference network provides stand-alone image classification, an object detection and/or a confidence score to the imaging device. The vision processing unit may further comprise a two or more trained inference networks configured to receive an inference result as an input and output a second inference result. A stereo camera system uses features and/or results from one or more inference network to control processing of three-dimensional data for the detected object.
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
Techniques are disclosed for systems and methods to reduce mechanical vibrations within a cryocooler/refrigeration system configured to provide cryogenic and/or general cooling of a device or sensor system. A cryocooler includes a motor driver controller configured to receive operational parameters and generate motor driver control signals and/or balancer system control signals based, at least in part, on the received operational parameters, and a motor driver configured to receive the control signals and generate drive signals to drive a motor and/or a balancer system of the cryocooler. The cryocooler includes a motorized and/or actively balanced expander configured to drive and/or balance motion of a displacer of the expander. The expander includes a magnet ring fixed to the displacer and a motor coil disposed within a cylinder head of the motorized and/or actively balanced expander.
F25B 9/14 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
79.
Synthetic infrared data for image classification systems and methods
An image classification system comprises a neural network trained on a synthetic infrared training dataset, including synthetic infrared images of objects rendered from a virtually represented infrared sensor in a virtual three-dimensional scene, the synthetic infrared images being generated using infrared radiation signatures of virtual objects in the virtual three-dimensional scene and an infrared response model of the virtually represented infrared sensor. A system for generating synthetic infrared training data comprises a three-dimensional scene modeling system operable to generate three-dimensional scenes comprising a plurality of objects, each object having an infrared radiation model, and an infrared sensor modeling system operable to model an imaging response for an infrared sensor virtually represented in the three-dimensional scene.
G06F 18/21 - Design or setup of recognition systems or techniquesExtraction of features in feature spaceBlind source separation
G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting
G06F 18/2413 - Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on distances to training or reference patterns
G06F 18/28 - Determining representative reference patterns, e.g. by averaging or distortingGenerating dictionaries
G06N 3/04 - Architecture, e.g. interconnection topology
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
80.
Closed loop automatic dataset creation systems and methods
Various techniques are provided for training a neural network to classify images. A convolutional neural network (CNN) is trained using training dataset comprising a plurality of synthetic images. The CNN training process tracks image-related metrics and other informative metrics as the training dataset is processed. The trained inference CNN may then be tested using a validation dataset of real images to generate performance results (e.g., whether a training image was properly or improperly labeled by the trained inference CNN). In one or more embodiments, a training dataset and analysis engine extracts and analyzes the informative metrics and performance results, generates parameters for a modified training dataset to improve CNN performance, and generates corresponding instructions to a synthetic image generator to generate a new training dataset. The process repeats in an iterative fashion to build a final training dataset for use in training an inference CNN.
Techniques are disclosed for panoramic image construction based on images captured by rotating imagers. In one example, a method includes receiving a first sequence of images associated with a scene and captured during continuous rotation of an image sensor. Each image of the first sequence has a portion that overlaps with another image of the first sequence. The method further includes generating a first panoramic image. The generating includes processing a second sequence of images based on a point-spread function to mitigate blur associated with the continuous rotation to obtain a deblurred sequence of images, and processing the deblurred sequence based on a noise power spectral density to obtain a denoised sequence of images. The point-spread function is associated with the image sensor's rotation speed. The second sequence is based on the first sequence. The first panoramic image is based on the denoised sequence.
Techniques to facilitate radar data processing are disclosed. In one example, a radar system includes a frame generation circuit and a frame processing circuit. The frame generation circuit is configured to receive radar signals. The frame generation circuit is further configured to convert the radar signals to at least one frame having a camera interface format. The frame processing circuit is configured to receive the at least one frame via a camera interface. The frame processing circuit is further configured to process the at least one frame. Related methods and devices are also provided.
Various embodiments of the present disclosure may include an imaging system that includes a base module, a camera module, an interface plate, and a locking ring. The base module may be mounted on the interface plate via one or more quick release fasteners. The camera module may then be coupled to the base module and one or more blind mate connectors may allow for the camera of the camera module to quickly connector with the base module and communicate data and/or power. A locking ring may then be coupled (e.g., threaded) onto the base module over the camera module to secure the camera module to the base module.
H04N 23/57 - Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
F16M 11/04 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand
F16M 11/14 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
H04N 23/617 - Upgrading or updating of programs or applications for camera control
H01R 13/631 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure for engagement only
Techniques are disclosed for systems and methods to control operation of a cryocooler/refrigeration system to provide cryogenic and/or general cooling of a device or sensor system. A cryocooler controller includes a motor driver controller configured to generate motor driver control signals based on operational parameters corresponding to operation of a cryocooler controlled by the controller, and a motor driver configured to generate corresponding drive signals to drive a motor of the cryocooler. The motor driver includes a first stage with a first pair of switches coupled serially between an input of the motor driver and a ground of the motor driver, a second pair of switches coupled serially between an output of the first stage and the ground of the motor driver, and an inductor coupled between the first and second pairs of switches, where operation of each switch is independently controlled by the motor driver control signals.
F25B 9/14 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
G01J 5/061 - Arrangements for eliminating effects of disturbing radiationArrangements for compensating changes in sensitivity by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats
A system and method for collecting, processing, storing, or transmitting traffic data. A localized data collection module may retrieve, receive, or intercept traffic data through or from hardware installed in a traffic control cabinet adjacent an intersection or other roadway feature of interest. Data which may have previously been confined to a closed loop traffic control system may be remotely accessible for traffic operations control or monitoring via a network connected server and/or cloud architecture.
G08G 1/01 - Detecting movement of traffic to be counted or controlled
B60T 7/18 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle operated by wayside apparatus
H04L 9/12 - Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
B60Q 9/00 - Arrangement or adaptation of signal devices not provided for in one of main groups
G08G 1/097 - Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
G08G 1/065 - Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
H04L 67/1097 - Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
G08G 1/04 - Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
G08G 1/042 - Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits
H04M 1/72403 - User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
G06Q 30/02 - MarketingPrice estimation or determinationFundraising
G08G 1/096 - Arrangements for giving variable traffic instructions provided with indicators in which a mark progresses showing the time elapsed, e.g. of green phase
G08G 1/0962 - Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
H04L 9/14 - Arrangements for secret or secure communicationsNetwork security protocols using a plurality of keys or algorithms
H04L 9/30 - Public key, i.e. encryption algorithm being computationally infeasible to invert and users' encryption keys not requiring secrecy
G08G 1/08 - Controlling traffic signals according to detected number or speed of vehicles
H04M 1/72463 - User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
Systems and methods according to one or more embodiments are provided for annealing a chalcogenide lens at an elevated temperature to accelerate release of internal stress within the chalcogenide lens caused during a molding process that formed the chalcogenide lens. In particular, the annealing process includes gradually heating the chalcogenide lens to a dwell temperature, maintaining the chalcogenide lens at the dwell temperature for a predetermined period of time, and gradually cooling the chalcogenide lens from the dwell temperature. The annealing process stabilizes the shape, the effective focal length, and/or the modulation transfer function of the chalcogenide lens. Associated optical assemblies and infrared imaging devices are also described.
Provided are systems and methods for detecting periodic movement in a video stream. A system includes an imaging module configured to capture video of a scene and a logic device configured to communicate with the imaging module. The logic device is configured to receive a video sequence of the scene from the imaging module, where the received video sequence comprises one or more video regions that are pixel-wise consistent between successive frames of the received video sequence. The logic device is configured to determine a periodicity deviation with respect to at least one of the one or more video regions based, at least in part, on the at least one video region. The logic device may issue an alert based, at least in part, on the determined periodicity deviation.
A system and method for securing and verifying transmitted traffic data. A transmitter may send a transmission via a radio signal including traffic data through or from hardware installed in a traffic control cabinet adjacent an intersection or other roadway feature of interest. The transmission may be signed with a private key. A receiver associated with a vehicle may receive, in addition to the transmission, a public key (e.g., via a data network) for use in verification of the authenticity of the transmission.
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
H04L 9/14 - Arrangements for secret or secure communicationsNetwork security protocols using a plurality of keys or algorithms
G08G 1/00 - Traffic control systems for road vehicles
G08G 1/01 - Detecting movement of traffic to be counted or controlled
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
G08G 1/097 - Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
G08G 1/04 - Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
G08G 1/042 - Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
G08G 1/065 - Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits
B60T 7/18 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle operated by wayside apparatus
H04L 9/12 - Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
B60Q 9/00 - Arrangement or adaptation of signal devices not provided for in one of main groups
B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
G06Q 30/02 - MarketingPrice estimation or determinationFundraising
G08G 1/096 - Arrangements for giving variable traffic instructions provided with indicators in which a mark progresses showing the time elapsed, e.g. of green phase
G08G 1/0962 - Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Thermal imagers and thermal cameras; electronic and electrical test and measurement instruments, namely, multimeters; test meters for measuring voltage, current, and resistance; test meters for measuring airflow; test meters for measuring water quality; combination oscilloscope and multimeters; electronic instruments for measuring and recording parameters of electrical current; electronic instruments for measuring parameters of electrical current; electronic instruments for measuring and displaying parameters of electrical current; battery-powered electronic test and measurement instruments, namely, tachometers, stroboscopes, and digital and analog sound level meters for measuring and analyzing rotational or linear surface speeds on motors, shafts, wheels or conveyor belts and for measuring noise levels and pollution; electronic light, temperature and resistance measurement meters; electronic instruments that measure and datalog humidity, temperature and light, namely, thermometers with humidity and temperature datalogging, and light meters; portable instruments for measuring chemicals in solution, namely, chemical meters, gas meters, and turbidity meters; portable rotation (rpm) measurement instruments
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic and electrical test and measurement instruments, namely, multimeters; test meters for measuring voltage, current, and resistance; test meters for measuring airflow; test meters for measuring water quality; combination oscilloscope and multimeters; electronic instruments for measuring and recording parameters of electrical current; electronic instruments for measuring parameters of electrical current; electronic instruments for measuring and displaying parameters of electrical current; battery-powered electronic test and measurement instruments, namely, tachometers, stroboscopes, and digital and analog sound level meters for measuring and analyzing rotational or linear surface speeds on motors, shafts, wheels or conveyor belts and for measuring noise levels and pollution; electronic light, temperature and resistance measurement meters; electronic instruments that measure and datalog humidity, temperature and light, namely, thermometers with humidity and temperature datalogging, and light meters; portable instruments for measuring chemicals in solution; portable rotation (rpm) measurement instruments
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic and electrical test and measurement instruments, namely, multimeters; test meters for measuring voltage, current, and resistance; test meters for measuring airflow; test meters for measuring water quality; combination oscilloscope and multimeters; electronic instruments for measuring and recording parameters of electrical current; electronic instruments for measuring parameters of electrical current; electronic instruments for measuring and displaying parameters of electrical current; battery-powered electronic test and measurement instruments, namely, tachometers, stroboscopes, and digital and analog sound level meters for measuring and analyzing rotational or linear surface speeds on motors, shafts, wheels or conveyor belts and for measuring noise levels and pollution; electronic light, temperature and resistance measurement meters; electronic instruments that measure and datalog humidity, temperature and light, namely, thermometers with humidity and temperature datalogging, and light meters; portable instruments for measuring chemicals in solution; portable rotation (rpm) measurement instruments
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic and electrical test and measurement instruments, namely, multimeters; test meters for measuring voltage, current, and resistance; test meters for measuring airflow; test meters for measuring water quality; combination oscilloscope and multimeters; electronic instruments for measuring and recording parameters of electrical current; electronic instruments for measuring parameters of electrical current; electronic instruments for measuring and displaying parameters of electrical current; battery-powered electronic test and measurement instruments, namely, tachometers, stroboscopes, and digital and analog sound level meters for measuring and analyzing rotational or linear surface speeds on motors, shafts, wheels or conveyor belts and for measuring noise levels and pollution; electronic light, temperature and resistance measurement meters; electronic instruments that measure and datalog humidity, temperature and light, namely, thermometers with humidity and temperature datalogging, and light meters; portable instruments for measuring chemicals in solution; portable rotation (rpm) measurement instruments
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic instruments that measure and datalog humidity, temperature and light, namely, thermometers with humidity and temperature datalogging, and light meters
