A backlighting system includes a light source, a concave reflector, a quarter-wave plate, and a reflective linear polarizer. The light source generates light that impinges directly upon the concave reflector. The quarter-wave plate is located and oriented so as to receive the light reflected from the concave reflector. The reflective linear polarizer is located and oriented to receive light transmitted through the quarter-wave plate. The reflective linear polarizer provides for reflecting light reflected from the concave reflector and transmitted through the quarter-wave plate having a first polarization direction, back through the quarter-wave plate to be reflected from the concave reflector. The reflective linear polarizer provides for transmitting light reflected from the concave reflector and transmitted through the quarter-wave plate having a second polarization direction that is orthogonal to the first polarization direction, and the quarter-wave plate provides for converting linearly-polarized light to circularly-polarized light, and vice versa.
A pair of optical prisms arranged in a complementary relationship provides for anamorphic magnification and cooperates with a refractive or diffractive element having at least one axis of effective cylindrical curvature, wherein each at least one axis of effective cylindrical curvature and the apexes of the pair of optical prisms are all substantially parallel to one another. The refractive or diffractive element generates an aberration as a result of rotation thereof about an axis parallel to the at least one axis of effective cylindrical curvature that at least partially compensates a corresponding aberration generated by the pair of optical prisms.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
Light of a virtual image of image content is projected by an optical subsystem to an eye location. The optical subsystem collects the light from a first aperture to the eye location. The virtual image is of an object located within a second aperture, wherein the first and second apertures are not collocated. In an associated method, a flat-panel image-display modulator within the second aperture imparts image content of the virtual image onto light generated by a source of light within the first aperture.
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
H04N 23/20 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only
H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
A pair of optical prisms arranged in a complementary relationship provides for anamorphic magnification and cooperates with a refractive or diffractive element having at least one axis of effective cylindrical curvature, wherein each at least one axis of effective cylindrical curvature and the apexes of the pair of optical prisms are all substantially parallel to one another. The refractive or diffractive element generates an aberration as a result of rotation thereof about an axis parallel to the at least one axis of effective cylindrical curvature that at least partially compensates a corresponding aberration generated by the pair of optical prisms.
Light of a virtual image of image content is projected by an optical subsystem to an eye location. The optical subsystem collects the light from or through a first aperture onto an exit pupil on a surface proximate to an outer surface of an eye, and forms an image of the first aperture at the exit pupil. The virtual image is of an object located within a second aperture, wherein the first and second apertures are not collocated. In an associated method, a flat-panel image-display modulator within the second aperture imparts image content of the virtual image onto light generated by a source of light within the first aperture.
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
H04N 23/20 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only
H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
A high-definition image is preprocessed to generate a substantially losslessly-reconstructable set of image components that include a relatively low-resolution base image and one or more sets of corresponding data that provide for progressively substantially losslessly reconstructing the high-definition image from the base image, wherein a single primary-color component of the one or more sets of corresponding data provides for relatively quickly reconstructing full-resolution intermediate images during the substantially lossless-reconstruction process.
A beam of light is directed onto, and scanned across, a controllably-selected portion of a concave-curved light-redirecting surface that provides for redirecting and redistributing the light and illuminating a two-dimensional image-display modulation array. A virtual image of the two-dimensional image-display modulation array is formed by an optical subsystem. Light thereof propagating from an aperture of the optical subsystem is collected onto a subpupil within an exit pupil of the optical subsystem on a surface proximate to an outer surface of an eye location. The subpupil is associated with the controllably-selected portion of the concave-curved light-redirecting surface, and with a corresponding portion less than all of the light of the virtual image that is associated with a gaze direction of the eye when viewing the subpupil. A location of the subpupil within the exit pupil corresponds to a location of the controllably-selected portion on the concave-curved light-redirecting surface.
An optical subsystem of a near-eye display system provides for projecting light of a virtual image of image content to an eye location, and provides for collecting light of the virtual image onto an exit pupil on a surface proximate to an outer surface of an eye when at the eye location. A subpupil modulator within an aperture in cooperation with the optical subsystem provides for forming a plurality of subpupils on a curved surface within the exit pupil, and provides for less than all of the light of the virtual image associated with one or more less than all of the plurality of subpupils to be projected to the eye location.
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
H04N 23/20 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only
H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
An optical subsystem of a near-eye display system provides for projecting light of a virtual image of image content to an eye location, and provides for collecting light of the virtual image onto an exit pupil on a surface proximate to an outer surface of an eye when at the eye location. A subpupil modulator within an aperture in cooperation with the optical subsystem provides for forming a plurality of subpupils within the exit pupil, at least two of which overlap by at least 20 percent, and provides for less than all of the light of the virtual image associated with one or more less than all of the plurality of subpupils to be projected to the eye location.
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
H04N 23/20 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
An optical subsystem of a near-eye display system provides for projecting light of a virtual image of image content to an eye location, and provides for collecting light of the virtual image onto an exit pupil on a surface proximate to an outer surface of an eye when at the eye location. A subpupil modulator within an aperture in cooperation with the optical subsystem provides for forming a plurality of subpupils within the exit pupil, provides for less than all of the light of the virtual image associated with one or more less than all of the plurality of subpupils to be projected to the eye location, and provides for individually and independently controlling an intensity of the light through each activated subpupil to a level less than a maximum level of intensity.
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
H04N 23/20 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only
H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
An optical subsystem of a near-eye display system provides for projecting light of a virtual image of image content to an eye location, and provides for collecting light of the virtual image onto an exit pupil on a surface proximate to an outer surface of an eye when at the eye location. A subpupil modulator within an aperture in cooperation with the optical subsystem provides for forming a plurality of subpupils within the exit pupil, and provides for less than all of the light of the virtual image associated with one or more less than all of the plurality of subpupils to be projected to the eye location. In various independent aspects: at least two subpupils overlap by at least 20 percent; and the intensities of the subpupils are individually and independently controlled.
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
An optical subsystem of a near-eye display system provides for projecting light of a virtual image of image content to an eye location, and provides for collecting light of the virtual image onto an exit pupil on a surface proximate to an outer surface of an eye when at the eye location. A subpupil modulator within an aperture in cooperation with the optical subsystem provides for forming a plurality of subpupils within the exit pupil, and provides for less than all of the light of the virtual image associated with one or more less than all of the plurality of subpupils to be projected to the eye location. In various independent aspects: at least two subpupils overlap by at least 20 percent; and the intensities of the subpupils are individually and independently controlled.
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
An optical subsystem of a near-eye display system provides for projecting light of a virtual image of image content to an eye location, and provides for collecting light of the virtual image onto an exit pupil on a surface proximate to an outer surface of an eye when at the eye location. A subpupil modulator within an aperture in cooperation with the optical subsystem provides for forming a plurality of subpupils within the exit pupil, and provides for less than all of the light of the virtual image associated with one or more less than all of the plurality of subpupils to be projected to the eye location. In various independent aspects: the plurality of subpupils are formed on a curved surface; at least two subpupils are simultaneously activated; at least two subpupils overlap by at least 20 percent; and the intensities of the subpupils are individually and independently controlled.
An accessory may be attached to image projector via an associated accessory-interface structure, the latter of which is operatively coupled to at least one projector-attachment structure that extends through an opening in a front panel of the projector so as to provide for clamping the accessory-interface structure to the front panel of the image projector.
A composite image displayed on an image display incorporates a first portion of image content, and incorporates one or more second portions of image content within corresponding one or more picture regions of the composite image. One or more images properties selected from a resolution, a level of magnification, a measure of pan, a size, and a scale of each of the first and second image portions can be modified, and the modification of an image property of the one or more second portions of image content entails receiving either supplemental or replacement image data that provides for displaying a corresponding modified version of the corresponding one or more second portions of image content, the modification of which can be independent of the first portion of image content and is responsive to an action by the user that indicates at least an interest in or focus on the one or more second portions of image content.
Initial low-quality images of a progressively-displayed high-definition image are masked with corresponding progressively-revealing mask filters or masking algorithms to realistically obscure such low quality and therefore to provide a realistically appearing progressive presentation of the high-definition image.
G06T 5/20 - Image enhancement or restoration using local operators
H04N 19/112 - Selection of coding mode or of prediction mode according to a given display mode, e.g. for interlaced or progressive display mode
H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
H04N 19/16 - Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter for a given display mode, e.g. for interlaced or progressive display mode
H04N 19/80 - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
H04N 19/85 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
G06T 5/10 - Image enhancement or restoration using non-spatial domain filtering
17.
Progressive image compression and restoration providing a high spatial quality intermediate image
A high-definition image is preprocessed to generate a substantially losslessly-reconstructable set of image components that include a relatively low-resolution base image and a plurality of extra-data images that provide for progressively substantially losslessly reconstructing the high-definition image from the base image, wherein a single primary-color component of the extra-data images provides for relatively quickly reconstructing full-resolution intermediate images during the substantially lossless-reconstruction process.
A high-definition image is preprocessed to generate a substantially losslessly-reconstructable set of image components that include a relatively low-resolution base image and a plurality of extra-data images that provide for progressively substantially losslessly reconstructing the high-definition image from the base image, wherein a single primary-color component of the extra-data images provides for relatively quickly reconstructing full-resolution intermediate images during the substantially lossless-reconstruction process.
For at least one component of a digitized image, if a magnitude of a difference between a pixel component value and a representative image-cell-value is less than a threshold for each pixel of a subset of pixels of an image cell of a digitized image, the corresponding pixel component values of corresponding pixels of a corresponding processed image cell are set to the representative image-cell-value. Otherwise, at least the most significant portion of the corresponding pixel component values of the corresponding pixels of the corresponding processed image cell are set to the value of pixel component values of the digitized image.
H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
H04N 9/64 - Circuits for processing colour signals
H04N 19/44 - Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
H04N 19/00 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
H04N 1/64 - Systems for the transmission or the storage of the colour picture signalDetails therefor, e.g. coding or decoding means therefor
A plurality of source image pixels of a subset of image pixels of a source image cell of a selected color component of a digitized image are processed to generate a corresponding color component for each corresponding processed image pixel of a corresponding processed image cell, wherein the processed image pixels of the processed image cell are in one-to-one correspondence with the source image pixels of the source image cell, a bit length of the color component of each processed image pixel of the processed image cell exceeds a bit length of color component of each source image pixel the source image cell, the processed image cell contains substantial color information in excess of what could be contained within a bit length equal to the bit length of each the source image pixel of the color component of the source image cell.
H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
H04N 19/00 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
H04N 19/44 - Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
H04N 19/44 - Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
H04N 19/44 - Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
A selected color component (R, G, B) for each of a plurality of image pixels (32, P) of an image cell (42, C) is encoded to form a corresponding color component (ER, EG, EB) of a corresponding plurality of encoded pixels (40, PE) in one-to-one correspondence with the image pixels (32, P). A bit length of each color component (ER, EG, EB) of an encoded pixel (40, PE) is less than that of a corresponding image pixel (32, P). The encoded pixels (40, PE) are subsequently decoded to generate a corresponding decoded image cell (64, C'k) containing decoded image pixels (62, P') in one-to-one correspondence with both the encoded pixels (40, PE) and with the original image pixels (32, P), of the same bit length as the original image pixels (32, P), and containing extended color information in excess of the corresponding base color information contained in the corresponding most-significant (MS) portions of the color components (R, G, B) of the original image pixels (32, P) having the same bit length as the encoded color components (ER, EG, EB).
H04N 11/20 - Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards
A first representation (12) of a digital image is received (3801) and encoded (EA) by an electronic image server (EIS, 408) so as to generate both at least one set of extended data (ED, EDi) and a second representation (38, 1000, 1000.i) of the digital image, that in combination during a subsequent decoding process (DA, 1002) provide for substantially reconstructing the first representation (12). The resolution of the first representation (12) is greater than that of the second. The electronic image server (EIS, 408) transmits (3808) the extended data (ED, EDi) to a client device (404) responsive to a request (3807) therefrom, which provides for the client device (404) to reconstruct the first representation (12) from the second representation (38, 1000, 1000.i). In one embodiment, the client device (404) receives (3804, 3806) the second representation (38, 1000, 1000.i) and the address of the electronic image server (EIS, 408) from a website (400), so as to provide for requesting (3807) and receiving (3808) the extended data (ED, EDi) from the electronic image server (EIS, 408).
A relatively higher resolution digitized image organized as a plurality of first kernel arrays, each with a plurality of pixels, is transformed into a corresponding relatively-smaller second kernel array of a relatively-lower-resolution image and an associated set of remaining pixels. Down-sampled pixels of the second kernel array are generated from linear interpolation of original pixels of the first kernel array. Associated interpolation coefficients incorporate perturbations to locations of the down-sampled pixels that are symmetric with respect to centers of the first and second kernel arrays. Down-sampled pixels of the second kernel array can be recombined with the associated set of remaining pixels to reconstruct the relatively higher resolution digitized image substantially without loss of associated information, or used directly to reconstruct an approximation thereof, with associated encoding and decoding processes adapted to reduce the susceptibility of image reconstruction errors caused by subsequent image compression.
H04N 7/12 - Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
A relatively higher resolution digitized image (12) organized as a plurality of first kernel arrays (110), each with a plurality of pixels (37), is transformed into a corresponding relatively-smaller second kernel array (124) of a relatively-lower-resolution image (38) and an associated set (116, 118) of remaining pixels (37). Down-sampled pixels of the second kernel array (124) are generated from linear interpolation of original pixels (37) of the first kernel array (110). Associated interpolation coefficients incorporate perturbations to locations of the down-sampled pixels (37′) that are symmetric with respect to centers (128, 130) of the first (110) and second (124) kernel arrays. Down-sampled pixels (37′) of the second kernel array (124) can be recombined with the associated set (116, 118) of remaining pixels (37) to reconstruct the relatively higher resolution digitized image (12) substantially without loss of associated information, or used directly to reconstruct an approximation thereof, with associated encoding and decoding processes adapted to reduce the susceptibility of image reconstruction errors caused by subsequent image compression.
H04N 7/12 - Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
A relatively higher resolution digitized image organized as a plurality of first kernel arrays, each with a plurality of pixels, is transformed into a corresponding relatively-smaller second kernel array of a relatively-lower-resolution image and an associated set of remaining pixels. Down-sampled pixels of the second kernel array are generated from linear interpolation of original pixels of the first kernel array. Associated interpolation coefficients incorporate perturbations to locations of the down-sampled pixels that are symmetric with respect to centers of the first and second kernel arrays. Down-sampled pixels of the second kernel array can be recombined with the associated set of remaining pixels to reconstruct the relatively higher resolution digitized image substantially without loss of associated information, or used directly to reconstruct an approximation thereof, with associated encoding and decoding processes adapted to reduce the susceptibility of image reconstruction errors caused by subsequent image compression.
