A light emitting device (10) includes a light emitting part (11) and a control part (13) for controlling repeated turning on and off of the light emitting part every unit time period set in advance in accordance with a data pattern representing identification data for identifying people wearing the light emitting device (11). An image processing device (20) includes an image acquiring unit (21) for acquiring images including the light emitting device captured using a camera (200), a read-out unit (23) for reading out the data pattern on the basis of the turning on and off of the light emitting part included in the light emitting device included in the acquired images, a data acquiring unit (24) for acquiring the identification data represented by the read out data pattern, and an image processing unit (25) for adding the acquired identification data close to the light emitting device included in the acquired image. The turning on and off of the light emitting section is not continuous in the data pattern.
An image data acquisition unit (101) that obtains image data comprising a plurality of pixels and including an optical recognition code. A mixed color determination unit (102) changes the color of a first pixel from a third color to either a first or second color, if a determination is made that all colors in at least one second pixel are different from the third color, said second pixel being positioned at a predetermined distance from a first pixel having the third color, said first pixel being among a plurality of pixels constituting the optical recognition code included in the obtained image data. A read processing unit (105) reads the optical recognition code included in the image data after the color has been changed.
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
3.
Light emitting device and method for tracking object
A technique and a light emitting device that can smoothly read out data while tracking a position of the light emitting device (an object). The light emitting device expresses data with “a change in the change of a color (switching of changes)”. The light emitting device specifies an object and the position thereof with a first primary change and thereafter expresses data with, so to speak, a secondary change (switching of the primary change). The primary change means that G and B alternately turn on (indicated by G*B) and so on. The secondary change means a change from the condition (G*B), in which G and B alternately turn on, to the condition (B*R) in which B and R alternately turn on. Thus, since data is expressed by the change of color condition changes, it is easier to freely express data while the position of an object is specified.
The objective is to provide anew an optical automated recognition code capable of easily marking by way of a trace (continuous line segment), and in which easy data recognition (decoding) can be performed by way of optical reading of the code. In an optical automated recognition code consisting of one continuous line, a plurality of sides are connected in one series to constitute the line, and data is represented by way of directions or lengths or curvature of each of the sides or relative angles between two of the sides connecting vertices. The code consists of a continuous line similar to calligraphy, and therefore, marking is made easy by way of the trace (continuous line segment).
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
5.
AUTOMATIC OPTICAL RECOGNITION CODE, METHOD FOR READING AUTOMATIC OPTICAL RECOGNITION CODE, METHOD AND DEVICE FOR MARKING AUTOMATIC OPTICAL RECOGNITION CODE, AND ARTICLE TO WHICH AUTOMATIC OPTICAL RECOGNITION CODE IS ATTACHED
Disclosed is a technique of marking with single color, leading to a marking technique and means enabling data to be less susceptible to damage and change. An automatic optical recognition code is configured by arranging a plurality of cells. Each of the cells has three or more positions in a predetermined displacement direction inside the cell, a mark is given to one among the positions, a position value representing by the position where the mark is given is determined, and data is represented by the transition of the position value of the cell in the data arrangement direction which is the direction in which the cells are arranged. Since data is represented by the transition of the position value, data can be read even if a marking is thin, and the object is distorted.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 7/00 - Methods or arrangements for sensing record carriers
6.
CODE SYMBOL OF CONTAINING TYPE, METHOD FOR READING SAME, AND ARTICLE GIVEN CODE SYMBOL OF CONTAINING TYPE
Provided is a detection code symbol which is used, e.g., to detect an article and can be easily made, especially a code symbol (detection symbol) which can be easily marked by, e.g., handwriting even by a general user. A code symbol of containing type has a symbol area indication layer in the outermost part. A plurality of symbol area indication layers can be provided, and two symbol area indication layers can be provided in other layers than the outermost part. A data cell group is disposed inside the symbol area indication layer. That is, the symbol area indication layer includes data cells thereinside. Data about the code symbols of containing type is represented by the containing relationship of the data cells and the colors of the data cells. Users can easily make such code symbols of containing type using existing marks and so on and easily give automatic-recognition code symbols to various kinds of articles.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
7.
METHOD AND DEVICE FOR READING OPTICAL AUTOMATIC-RECOGNITION CODE
Provided is an improved method for displaying the result of read/recognition of 1-D color bit codes when the 1-D color bit codes are read/ recognized at a time. One or more code symbols of an optical automatic-recognition code are imaged, and the image data is captured. The first image data is set as “a reference capture screen”, and the position and so on of the indication box thereof are stored so as to overwrite the result of the decoding of each set of the later captured image data on “the reference capture screen”. A correction coefficient for correcting the position on the reference capture screen is also determined and stored. After the capture is repeated a plurality of times, the positions and so on of the indication boxes of the code symbols are corrected, and the indication boxes are inserted and displayed on the reference capture image at a time. Therefore, which code has been recognized (or not) is intuitively presented to the operator, and thereby the operability is improved.
G06K 7/00 - Methods or arrangements for sensing record carriers
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
8.
AUTOMATIC-RECOGNITION CODE FORMED BY COLOR ARRANGEMENT AND ARTICLE GIVEN SAME
Provided is an optical automatic-recognition code such that color cells are arranged to represent prescribed data, wherein arrangement errors are detected not by numerical calculation of data but by establishing rules for of the arrangement of the color cells and checking whether the code satisfies the rules. A rule delimiting the number of color cells constituting the optical automatic-recognition code is established for each color. The rules are determined for one or more colors. For example, it is preferable to establish a rule for the number of R cells in advance. It is also preferable to make the rules for the number of color cells by the modulus method. By establishing such rules for the number of color cells, it is possible to check for errors at the color stage before restoring the data, which is to say before conventional error detection/correction by numerical data calculations.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
Realized is a code system wherein a color sequence usable as an optical automatic recognition code representing data by means of the order of colors is continuously marked on an article such as a cord and the same correct data can be read even if any cell of the color sequence is started to be read. The color sequence (code symbol) is determined so that cyclic codes of the color sequence also represent the same data. The cyclic codes are color sequences determined by shifting (rotating) the code symbol in such a way that the cells are cyclic. When a color sequence is composed of six cells, five cyclic codes are determined from the color sequence. Since six color sequences in total represent the same data, the data can be correctly read even if any cell is started to be read when the color sequences are continuously marked.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
10.
LIGHT EMITTING DEVICE AND METHOD FOR TRACKING OBJECT
Provided are a technique and a light emitting device that can smoothly read out data while tracking a position of the light emitting device (an object). The light emitting device expresses data with “a change in the change of a color (switching of changes)”. The light emitting device specifies an object and the position thereof with a first primary change and thereafter expresses data with, so to speak, a secondary change (switching of the primary change). The primary change means that G and B alternately turn on (indicated by G*B) and so on. The secondary change means a change from the condition (G*B), in which G and B alternately turn on, to the condition (B*R) in which B and R alternately turn on. Thus, since data is expressed by the change of color condition changes, it is easier to freely express data while the position of an object is specified.
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01S 1/70 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmittersReceivers co-operating therewith using electromagnetic waves other than radio waves
G01S 3/782 - Systems for determining direction or deviation from predetermined direction
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
H04B 10/11 - Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
H04B 10/112 - Line-of-sight transmission over an extended range
Disclosed is a management system, which allows a worker to mark an automatic recognition symbol easily (or roughly) and which allows a reader of the automatic recognition symbol to know the production procedure of the product easily. An object is marked at each step with an optical automatic-recognition code (an automatic recognition code according to a color arrangement) expressing data with the arrangement, combination and transition of colors. A code symbol is a row arrangement of plural color region cells. In the code symbol adopted, the number of codes is constant, and an R cell is always located on the left end, whereas a non-R cell such as a G or B cell is located on the right end. When the code symbol of this constitution is used, even if the end portion should contact or partially overlap another adjacent code symbol, it is not erroneously recognized as the same cell, thus enabling each code symbol to be differentiated and decoded.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
12.
Apparatus for recognizing an optical recognition code in which a code symbol of a 1-dimensional color bit code indicative of certain data is divided into a plurality of code symbols
It is possible to linearly arrange cells and indicate particular data in the order of colors of respective sells. A code system uses an optical symbol decoding method capable of reading the color arrangement if the arrangement continuity and the linear shape are maintained. The data expression method may be other than “the order of colors.” For example, it is possible to employ a method for allocating a numeric value to each of the colors by one-to-one correspondence (R=0, B=1, etc.), a method for allocating data by a color transition (“CM”=“MY”=“YC”=0, “CY”=“YM”=“MC”=1, etc.), a method for allocating data for a combination of colors, and the like.
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
Provided are optical symbols that eliminate splitting and isolation in a 1.5-dimensional color bit, said optical symbols having resiliency against deformation and the like to prevent splitting or isolation. The optical symbols are encoded so that the colored elements (colored area) are always contiguous, and the elements that are 'on' (colored) are always adjacent to one another within a module. In the 1.5-dimensional color bit code, the adjacent modules (cells) differ in at most one element state, so the elements, within each code as a whole, that are 'on' (colored) are always contiguous. Thus splitting and isolation of the color codes can be prevented. As a result, read errors and the like are unlikely to occur in the optical symbols even in the event of deformation of the color bit codes.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
14.
LIGHT-EMITTING DEVICE AND METHOD FOR DISPLAYING AND DETECTING POSITION BY USING LIGHT-EMITTING DEVICE
Provided is a technique of measuring the position of an object to be printed and disposed at a distance and allowing the object to display automatic recognition data. A light-emitting device including a predetermined R(red) light-emitting element, a predetermined G(green) light-emitting element, a predetermined B light-emitting element, and a controller for controlling their operating states is attached to an object to be printed. The light-emitting elements are allowed to emit lights in a predetermined light-emitting pattern. The light-emitting pattern is stored in a predetermined storage means. The light-emitting pattern forms a time-varying optically recognized code representing desired data when the colors vary along the time axis. As a result, compared to conventional two-dimensionally optically recognized codes constituted by arranging colors, a small-area optically recognized code is realized. When the light-emitting device is imaged with, e.g., a CCD camera, the position of the light-emitting device, i.e., the position of the object can be determined. If the operation is continued, the object can be tracked.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01S 1/70 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmittersReceivers co-operating therewith using electromagnetic waves other than radio waves
G09F 13/20 - Illuminated signsLuminous advertising with luminescent surfaces or parts
15.
OPTICAL RECOGNITION CODE, ITS MARKING METHOD, ITS READING-OUT METHOD, ARTICLE MARKED WITH OPTICAL RECOGNITION CODE, COLOR RECOGNITION METHOD, PROGRAM, AUTOMATIC RECOGNITION CODE BY COLOR ARRANGEMENT AND ITS ATTACHED ARTICLE
This object aims to realize a method that sets a certain limit to a distance between color areas and carries out more easily 旜cutting out” and 旜sequence recognition” based on the distance. In an optical recognition code in which a plurality of predetermined color affixed cells are arranged in a line to represent data by a sequence of colors affixed to the cells, a distance between the cells is defined to make the code easily read out. First, a distance between mutually adjacent cells is equal to or more than a predetermined minimum value but equal to or less than a predetermined maximum value. Second, a distance between a predetermined cell and a cell adjacent to the predetermined cell is shorter than a distance between the predetermined cell and a cell not adjacent to the predetermined cell. Under these conditions a near cell is pursued in accordance with a distance as a clue, thereby making it possible to read out the optical recognition code in its cell order.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 1/12 - Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
16.
OPTICAL RECOGNITION CODE READING METHOD, DEVICE, AND PROGRAM, AND PRINTED OBJECT MARKED WITH OPTICAL RECOGNITION CODE
A stack of printed objects (8) are placed on a flat surface (in a containing case (16)) inclinedly. Consequently, as shown in Fig. 2(2), the objects (8) are arranged out of alignment, and the front surfaces (12) (or the back surfaces (14)) of the printed objects (8) are partially exposed between the edges of the printed objects (8). The colors of the front and back surfaces (12, 14) of the printed objects (8) of an example of the invention are other than the mark color, and the front and back surfaces (12, 14) constitute quiet zones. Therefore, when the thus arranged printed objects are imaged with a CCD camera, the symbols can be separated accurately thanks to the presence of the quiet zones, and decoding can be accurately conducted.
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
17.
OPTICAL RECOGNITION CODE RECOGNIZED RESULT DISPLAYING METHOD
旜Recognized data” that are a result of recognition of a code symbol and 旜a corresponding pattern specifying display” indicative of a code symbol that can be recognized are overlapped and displayed with an original image. The recognized data are those that can be recognized from their code symbol. The corresponding pattern specifying display is a diagrammatic pattern indicative of the finally recognized code symbol, and a rectangular frame, for instance, is used for it. With these displays, an operator can know which code symbol is recognized and what a recognized result is, so that a highly convenient optical recognizing device and its method can be provided.
G06K 7/00 - Methods or arrangements for sensing record carriers
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
18.
MARKING METHOD BY SHIELDING, MARKING METHOD BY ELIMINATING, AND MARKING METHOD BY CHANGING COLOR
It is an object to realize a method of more easily marking an optical type recognition code. First, three of a red ribbon-like thread (30r), a green ribbon-like thread (30g) and a blue ribbon-like thread (30b) are lined up and sewed in a cloth marking subject (28). Next, black embroidery patches (32a-32l) are sewed at predetermined portions of the ribbon-like threads (30r), (30g) and (30b) to cover and hide the ribbon-like threads (30r), (30g) and (30b). With these two steps, colors not covered by black embroidery patches (32a-32l) are exposed outside, so that marking of an optical type recognition code is carried out on the cloth markingsubject (28).
G06K 1/12 - Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
B41M 5/28 - Thermography using thermo-chromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat decomposable compounds, e.g. gas liberating
B41M 5/30 - Thermography using chemical colour formers
B41M 5/46 - Thermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography characterised by the light-to-heat converting meansThermography characterised by the base, intermediate or covering layersHeat, radiation filtering or absorbing means or layersThermography combined with layers or compositions suitable for other methods of image registrationSpecial originals for reproduction by thermography characterised by the heat or radiation filtering or absorbing means or layers
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
19.
OPTICAL RECOGNITION CODE MARKING METHOD AND DEVICE, AND RELATED METHOD AND RELATED DEVICE
A multiple-color coupler agent is attached to a print subject material. After the multiple-color coupler agent is attached to the print subject material, a coloration inducing stimulus, such as a laser light stimulus, for example, is given to a coloring target position on the multi-color coupler agent. A coloration inducing control means (computer) controls a position alignment of a color induced by the coloration inducing stimulus (laser light stimulus) and the coloring target position. The coloration inducing control means seeks an optical recognition code based on information desired to express and gives the multiple-color coupler agent a corresponding stimulus sequentially based on a color of the optical identification code. This way can make a predetermined color arrangement based on the color of the optical recognition code desired to attach emerge on the multiple-color coupler agent.
G06K 1/12 - Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
B41J 3/01 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for special character, e.g. for Chinese characters or barcodes
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
B41J 2/32 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
20.
OPTICAL SYMBOL, ARTICLE TO WHICH THE OPTICAL SYMBOL IS ATTACHED, METHOD FOR ATTACHING OPTICAL SYMBOL TO ARTICLE, AND OPTICAL RECOGNITION CODE RECOGNIZING METHOD
It is possible to provide a code using an optical symbol which can be read with a high accuracy even under an environment of a low printing accuracy including printing on an article which can be easily deformed. Cells are arranged in a linear shape and particular data is indicated by a state of element in each of the cells (whether the element is colored). Especially a particular color is fixed to each of the elements and it is possible to use the two states whether the color is attached or not. This state can express the data. Accordingly, it is possible to realize a code system capable of reading data if the element sequence continuity and the form (topology) as the linear state are maintained.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
21.
OPTICAL SYMBOL, ARTICLE TO WHICH THE OPTICAL SYMBOL IS ATTACHED, METHOD FOR ATTACHING OPTICAL SYMBOL TO ARTICLE, OPTICAL SYMBOL DECODING METHOD, RELATED DEVICE, AND RELATED PROGRAM
It is possible to linearly arrange cells and indicate particular data in the order of colors of respective sells. A code system uses an optical symbol decoding method capable of reading the color arrangement if the arrangement continuity and the linear shape are maintained. The data expression method may be other than 'the order of colors'. For example, it is possible to employ a method for allocating a numeric value to each of the colors by one-to-one correspondence (R = 0, B = 1, etc.), a method for allocating data by a color transition ('CM' = 'MY' = 'YC' = 0, 'CY' = 'YM' = 'MC' = 1, etc.), a method for allocating data for a combination of colors, and the like.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 7/12 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
patents
