WO2010099738A1 - Procédé d'incorporation et d'identification d'informations dans une image d'impression - Google Patents

Procédé d'incorporation et d'identification d'informations dans une image d'impression Download PDF

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Publication number
WO2010099738A1
WO2010099738A1 PCT/CN2010/070828 CN2010070828W WO2010099738A1 WO 2010099738 A1 WO2010099738 A1 WO 2010099738A1 CN 2010070828 W CN2010070828 W CN 2010070828W WO 2010099738 A1 WO2010099738 A1 WO 2010099738A1
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WIPO (PCT)
Prior art keywords
information
screen
dot
printed
embedding
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PCT/CN2010/070828
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English (en)
Chinese (zh)
Inventor
顾泽苍
Original Assignee
Gu Zecang
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Publication of WO2010099738A1 publication Critical patent/WO2010099738A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods
    • H04N1/32208—Spatial or amplitude domain methods involving changing the magnitude of selected pixels, e.g. overlay of information or super-imposition
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0051—Embedding of the watermark in the spatial domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
    • H04N2201/3233—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of authentication information, e.g. digital signature, watermark
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3271—Printing or stamping

Definitions

  • the present invention relates to a method of embedding information and identifying information on a printed image and its use on a print medium. Background technique
  • the second representative method of multimedia printing technology is: In Japan, the method of inputting and outputting information in dot matrix mode is also disclosed: [Bu' Bu Bu Xi Xi 3 ⁇ 4" ⁇ Information Entry and Exit Method (International PCT Disclosure No. W02004/084125 ) ] and "printing structure for forming a media surface by printing a dot matrix, printing method, and reading method thereof [ ⁇ y ⁇ , ° ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ Method (Patent Disclosure 2007-282272)] "The invention proposes that four reference lattices placed at the four corners of the square correspond to one information lattice, and eight different angles are formed at the center of the square lattice as information dot matrix placement Position, eight digital information, that is, three bits of information can be recorded separately.
  • the 6 ⁇ 6 dot matrix two-dimensional barcode of the first method it is only a method for reducing the dot size of the two-dimensional code, because there is a problem that the gray value of the shading is high, so that the printing object may be uncoordinated. sense.
  • the amount of information is low and the size of the dot matrix mode is large, so it is difficult to apply to a general printer.
  • the efficiency of recording information is still low, for example.
  • the information point is 4 rows X 4 columns, it is necessary to distribute 9 rows X 9 column dots, so there will be low information recording efficiency.
  • the characteristics of the most important printing screens in printed images have been ignored. For example, the dot size characteristics of the printing screen, the dot spacing characteristics of the printing screen, and the dot distribution characteristics of the printing screen. As a result of these methods, after printing, the random distribution of information dots inevitably occurs, which affects the quality of printed images.
  • the rotation recognition means may cause an identification error.
  • the information recognition device designed by the above conventional method is not considered to reduce the cost, and a microprocessor can be used to recognize both the code value and the multimedia processing, and how to implement the LED illumination simply and beautifully.
  • An object of the present invention is to provide a method for information embedding and information recognition of a printed image and an application thereof on a printing medium, which proposes information recording efficiency when information is buried using an ordinary printer having low printing precision High, the reading area of the identification device is minimized, and the method of constructing the information module group in which the image quality of the printed image after embedding the additional information is not reduced is considered in consideration of the characteristics of the printing screen.
  • Another object of the present invention is to solve the problem of interference plaque which is avoided when printing a shading using a conventional printer.
  • the technical solution adopted by the present invention is to provide a method for information embedding and information identification of a printed image, which is implemented on an information embedding device and an information recognizing device, and the method includes the following steps. : In the information embedding device, image data to be buried as information and additional information to be buried briefly are read;
  • the screen encoding being a screen with simultaneous geometric or physical information embedded in the pattern having the characteristics of the printed screen Coded information module group;
  • the read image data is coincident with the shading image data for outputting new image data, and the new image data output is further capable of outputting only shading image data, wherein the output of the new image data is formed by at least one form;
  • the partial or overall information of the print medium in which the additional information is embedded is read by the image sensor to embed the image data; Embedding the read information into image data to perform at least one image processing including brightness processing or binarization processing;
  • the recognition result is output.
  • the effect of the present invention is that not only the printing of the additional information into the printing medium but also the printing of the additional information into the printing medium can be performed using a general printer.
  • the proposed information is embedded in the screen code to minimize the read area; the print interference check pattern is controlled to a minimum extent, the robustness is high, the recognition speed is fast, the commodity cost is low, and the embedded printed image is not caused.
  • Features such as reduced image quality.
  • Figure 1 is a flow chart of the information embedding device of the present invention.
  • Figure 2 is a flow chart of the information reading apparatus of the present invention.
  • FIG. 3 is a diagram showing a representation of a screen coding with a number of dots of the present invention.
  • Figure 4 is a diagram showing a representation of a screen encoding of physics by phase modulation according to the present invention
  • FIG. 5 is a diagram showing a representation of a screen format information module group form of the present invention.
  • FIG. 6 is a diagram showing a configuration example of a new information module group by phase modulation according to the present invention.
  • FIG. 7 is a diagram showing an example of a screen coding performance of the present invention which can solve the interference check problem
  • FIG. 8 is a diagram showing a screen modulation phase modulation representation of the present invention that can solve the interference check problem
  • FIG. 9 is a diagram showing an example of a composition of a screen coding information module group capable of solving the interference check problem of the present invention.
  • Figure 10 shows an example of the occurrence of a printed interference check
  • Figure 11 is a view showing an example of the phenomenon of no print interference check in the present invention.
  • Figure 12 is a flow chart of processing the information embedding device of the present invention.
  • Figure 13 is a diagram showing an example of the sequence information of the buried area as a playback value
  • Figure 14 is a view showing an example of the case where the additional information is used as the coordinates of the printing medium
  • Figure 15 is a diagram showing an example of embedding additional information into a document gap
  • Figure 16 is a flow chart showing the processing of the information identifying apparatus of the present invention.
  • Figure 17 is a diagram showing an example of an electronic circuit configuration of an information recognition device of the present invention.
  • Figure 18 is a view showing an example of the configuration of an image sensor portion of the information recognition device of the present invention.
  • Figure 19 is a view showing an example of the structure of the information embedded in the printing medium of the present invention.
  • Figure 20 is a view showing an example of the configuration of an LED display portion of the information recognition device of the present invention;
  • Figure 21 is a conceptual diagram of an application example of the multimedia printed matter of the present invention.
  • Figure 22 is a conceptual diagram of another application example of the multimedia printed matter of the present invention.
  • Figure 23 is a diagram showing an embodiment of another dot matrix mode of the present invention.
  • Figure 24 is an illustration of a dot pattern of different directions of the present invention.
  • Figure 25 is a diagram showing an example of an information module group constituting a 4*4 dot matrix using characteristics of recording information by phase modulation of a halftone dot;
  • Figure 26 is an embodiment of a multi-bit screen coding mode group of a 4*4 dot matrix having a 45 degree rotation of the present invention.
  • the "pixel” is the smallest unit constituting the image
  • the “spot” is the minimum unit of the screen corresponding to the pixel constituting the smallest unit of the image
  • the "point of the dot” is the smallest unit constituting the dot.
  • the "point of the dot” is composed of the smallest unit “printing point” that can be printed by the printing equipment.
  • the "geographic information embedding code” refers to the distribution of its lattice mode, according to the distribution of its different positions, the distribution of different directions, the distribution of different shapes, the points of different size dots, the points of different number of dots, A dot pattern in which information is distributed by means of a concentrated and scattered distribution of points, called a geometric information embedded code.
  • the "physical information embedding code” refers to the distribution of its lattice mode, the distribution of different modulation modes, the distribution of phase modulation modes, the distribution of different modulation results, the distribution of different propagation directions, and the distribution of different frequencies. , the distribution of different colors, the distribution of different gray levels, etc. to record the dot matrix pattern of information, called the physics information buried code.
  • the “gradation characteristic of the screen dot” refers to the characteristic of uniformizing the gray scale of the dot of the screen, that is, the characteristic of the number of printed dots of the screen dot having the same composition, and the gray value of the screen dot is minimized. Characteristics.
  • the "size characteristic of the screen dot” means that the dots of all the dots of the screen dot are characterized by the number of dots of the printed dots being minimized, and the size of the mesh dots is minimized.
  • the "interval feature of the screen dots” refers to the characteristics of arranging the dots of the screen at a certain interval, and the interval of the screen dots is larger than the size of the screen dots.
  • the “arrangement characteristic of the screen dot” refers to an arrangement characteristic in which the two-dimensional matrix arrangement of the screen dots of the screen is rotated by 45 degrees.
  • the “information embedding method” refers to a method in which the screen coding is arranged in a two-dimensional matrix form to form a shading, and the formed shading and the printed image data are superimposed, so that information can be buried in the area of the printed image. .
  • One is the color-differentiated embedding method, that is, the color of the screen coding is different from the color of the printed image, for example, the screen code is black K version, and the printed image is C, M, In the Y version, since the screen is encoded as an independent color, the code value of the screen code can be correctly recognized even if it is completely coincident with the printed image.
  • the other is the screen encoding priority embedding method, that is, when some screens of the screen encoding coincide with the dots of the printed image, since the screen-encoded dots have priority, the dots of the printed image are directed to the screen code.
  • the screen code is the same as the color of the dots of the printed image, it can be distinguished in space, so the code value of the screen code can be correctly recognized.
  • Another type is the printing image dot-point embedding method, that is, when some screen dots of the screen image and the dots of the printed image coincide, since the dots of the printed image have priority, the screen-coded dots are directed to the dots of the printed image. Moving nearby, even if the screen code is the same as the color of the dots of the printed image, it can be distinguished in space, so the code value of the screen code can be correctly recognized.
  • the "screen encoding” refers to a code that recognizes possible information recording and information embedding in consideration of the characteristics of the printed screen having a geometric or physical distribution pattern.
  • the "visual model” refers to the visual characteristics of the human eye, including the visual characteristics of the human eye mixing different colors, the visual characteristics of the dot size, the visual characteristics of the dot distribution direction, etc.
  • the visual model is the theory of the characteristics of the printed screen. The basis is consistent with the characteristics of the printed screen.
  • the "visual characteristics in which different colors are mixed” means that when a large-area printing color on a printing medium is added to another small-area color, the human eye is difficult to recognize the color of a small area.
  • the "visual characteristics of the dot size” refers to the size or dot spacing of the dots having a diameter of less than 0.1 mm according to the calculation of the Rayleigh criterion, which is the size or dot spacing of the dots which are invisible to the naked eye.
  • the "visual characteristics of the distribution direction of the dot” refers to the arrangement of the dots. If the column is set to 9 Q degrees and the horizontal line is set to Q degrees, the arrangement of the dots is most easily perceived by the human eye, but if Rotating the ranks by 45 degrees is a feature that is difficult for the human eye to feel.
  • the "point or network point of the distribution reference network point” refers to a position of at least one network point or network point in the screen coding or screen coding information module, and has a position distribution of the screen coding or screen coding information module.
  • the "information embedding method of different modulation methods" refers to an AM screen, that is, an AM screen, by changing the size of different screen dots to represent the gray scale of the printed screen dots. Printing by changing the number of different screen outlets
  • the method of grayscale of the screen dot is the FM screen, that is, the FM screen.
  • information recording and information embedding is called information recording and information of different modulation methods. Buried method.
  • the dot matrix mode is formed according to different modulation methods, and it can also be considered that the dot matrix mode is composed of a plurality of frequency components.
  • the form of the lattice distribution is the same as the dot matrix of the different modulation modes described above.
  • the dot matrix distribution of the AM screen can be regarded as a low frequency dot matrix mode
  • the dot matrix distribution of the FM screen can be Consider a high frequency dot matrix mode.
  • the dot matrix mode is formed according to different modulation modes. Since the dot of the dot pattern of the AM screen is distributed by a plurality of small dots, the number of dots of the mesh of the AM screen is relatively small, and the gray of one dot is gray. The degree is larger. On the other hand, since the dot of the lattice mode of the F M screen is distributed by a plurality of small dots, the number of dots of the mesh of the F M screen is relatively large, and the gray value of each dot is small.
  • the dot matrix mode according to different modulation modes can also be said to be a dot matrix mode composed of dots of different number of dot points, or a dot matrix mode composed of dots of dots of different gray values, or It is a lattice mode composed of a concentrated distribution of points of a dot and a distributed distribution. Whatever the argument, the form of the lattice pattern distribution is identical and therefore falls within the scope of the present invention.
  • the "identifiable screen coding" is a code form in which information is embedded in a printed image independently in a certain code form.
  • the iconic screen coding is different from the strip screen coding and the two-dimensional screen coding.
  • the former is a code that exists independently.
  • the one-dimensional barcode or the two-dimensional barcode which is widely used at present is an identification code, as long as the code is used. Once identified, an action can be taken.
  • the latter is to perform an operation after identifying the entire image or the entire page of the print. The two are very close in many ways.
  • the method for information embedding and information identification of a printed image of the present invention is implemented on an information embedding device and an information recognizing device, and the method comprises the following steps:
  • image data as an object of information embedding and additional information to be buried briefly are read;
  • the screen encoding being a screen with simultaneous geometric or physical information embedded in the pattern having the characteristics of the printed screen Coded information module group;
  • the read image data is coincident with the shading image data for outputting new image data, and the new image data output is further capable of outputting only shading image data, wherein the output of the new image data is formed by at least one form;
  • the partial or overall information of the print medium in which the additional information is embedded is read by the image sensor to embed the image data;
  • the recognition result is output.
  • the characteristic of the printing screen is that the screen spacing of the screen coding is greater than or equal to the dot spacing characteristic of the displacement field of the screen coding network dot; the AM screen arrangement or the FM screen arrangement is respectively performed according to the dot arrangement of the printing precision screen. At least one of the dot arrangement characteristics of the screen-coded dots arranged in a 45-degree rotation manner.
  • the code value of the information module group code value of the identification screen screen is code verification performed by adding or multiplying the screen code value, and performing at least one of the same code check or parity check mode.
  • the information embedding method of the screen-coded information module group is a method in which a shading formed by a screen-coded information module group overlaps with a printed image, and at least a method of embedding information in a gap of the printed image a way.
  • the lattice embedding code which is a geometrical pattern that recognizes the characteristics of the printing screen at the same time, it means: in the dot pattern configuration of the screen encoding, the distribution of the lattice is distributed through different positions, through different The direction distribution, through the distribution of different shapes, through the concentration and dispersion of the lattice, through the distribution of the number of different lattices, at least one of the distribution forms of the code.
  • the information embedded in the code as a physics that can simultaneously recognize the characteristics of the printed screen means In the dot pattern configuration of the screen coding, the distribution of the lattice is distributed by different phase modulation modes. Through the distribution of different modulation results, the distribution through different modulation methods, the distribution through different frequencies, the distribution through different propagation directions, at least one of the distribution forms of the code.
  • the LED illumination in the information recognition device is a structure that receives light between light guiding materials, so that the LED illumination does not directly receive light.
  • the electronic circuit in the information identification device comprises an image sensor connected to the multimedia microprocessor, and the multimedia microprocessor is respectively connected with an SD card, an operation button, a USB, an LED display, a sound input amplifier and a sound output amplifier, and respectively connected to the microphone and Loudspeaker
  • It also includes a power supply for connecting an image sensor, a lighting device, a multimedia microprocessor, an SD card, an operation button, a USB, an LED display, a sound input amplifier, and a sound output amplifier.
  • the LED light guiding material is a light guiding material made of plexiglass coated with a fluorescent paint.
  • the input image data described in the information embedding and information identification method of the printed image, and the screen coding information module embedded in the code by the identifiable geometric or physics information having the characteristics of the printed screen simultaneously The shading image information of the group is superimposed and outputted, and then printed by the printing device to form information embedded in the printing medium, or only the image data of the output shading image is printed, and the printed matter is pasted onto the corresponding area of the printed printed matter to constitute information Embedded in the print medium, at least one of the information embedded in the print medium is embedded in the print medium.
  • a screen code as additional information is embedded in the print image information, and is carried out in the information embedding apparatus.
  • Fig. 1 is a flowchart showing the processing of the information embedding device.
  • the image data acquisition step reads additional information to be embedded in the print medium.
  • the reading method can be read directly from a recording medium such as a memory or a hard disk, or can be taken out from the printer driver.
  • the screen coding conversion step converts the additional information embedded in the printed image into a geometrically or physically distributed information record of the pattern recognition having the characteristics of the printed screen and the screen coding information module of the information embedding code group.
  • the number of screen coded dots is set to 1.
  • the dot gray value is also minimized, so that the quality of the printed image in which the information is buried is not lowered.
  • the arrangement of the screen-coded information module group should be considered AM.
  • the form of the banner screen that is, the individual outlets should be arranged as neatly as possible.
  • the interval of the screen coded dot should be set to be larger than the size of the screen coded dot.
  • the size of the dot and the spacing of the dot matrix are in accordance with the Ruili criterion, which is an unrecognizable size of the human eye, so the screen
  • the arrangement of the coded information module group should consider the form of the FM frequency modulation screen.
  • the interval of the screen coded network dot can be set to be smaller than the size of the screen coded dot, and when the information is recorded according to different positions of the screen coded dot, Although the distribution of the screen coded dot is random, according to the information content, even if the interval of the screen coded dot is smaller than the random distribution of the screen coded dot, the random distribution of the textured dot is relatively large, but The overall screen effect will not appear I feel uncomfortable. Thus, there is still an advantage that the quality of the printed image after embedding the information is not lowered.
  • the shading image data constructing step comprises forming a shading image data data by the above information module group.
  • the print image data is shading image information composed of an information module group arranged in the order of the play field; a portion other than the corresponding portion, or an unrelated screen code is buried or nothing is buried, and any of them is selected.
  • One is for processing.
  • the new image data output step or the image data input above and the shading image data are superimposed and output, or only the shading image data is output, and any one of the new image data is output.
  • the image information reading step is performed in the information recognition device, and the image data of the print medium in which the additional information is embedded is read by an image sensor such as an image scanner or a CMOS sensor.
  • the image processing step is an image brightness processing for controlling the brightness of the image sensor by controlling the brightness of the image to control the brightness of the image to a certain value, and performing binarization processing of the image.
  • the code value identification step extracts the network point describing the additional information and identifies the code value of the code.
  • the recognition result output step outputs the above recognition result.
  • the distribution is shared by the information module group.
  • the reference point, or a method of constructing a 4-digit multi-bit screen coding in which the dot is set to 1 is proposed by dot-distributing the distribution reference point.
  • the screen coding of the screen coded network dot number shown in FIG. 3 is set to 1.
  • 301 is set as an information point
  • 302 is set as a 4-digit multi-bit screen coding with a dot number of 1
  • 303 is defined as a distributable area of the information point 301.
  • the information point 301 records information by geometrically different positional distributions or by different angular distributions formed by the center of the distributable area 303. It is also conceivable to record information by different shapes.
  • the dot pattern of (a) can be set to a multi-bit value of 0; the dot pattern of (b) can be set to a multi-bit value of 1; the lattice mode of (c) can be set to The multi-bit value 2; (d) the dot pattern can be set to a multi-bit value of 3; the dot pattern of (e) and (f) can be set to the position reference dot pattern constituting the position information.
  • the screen coding information recording efficiency shown in Fig. 3 is 2, that is, a dot matrix can record 2 bits of information.
  • the distribution of the information points 301 of the screen coding may be considered as passing.
  • the image data of the square normalized grid of the interval T formed by the plurality of screen dot information points 301 of the matrix distribution is set to ⁇ m, n ⁇ , and the phase modulation method of the screen coding is as follows:
  • phase modulation of the propagation signal ⁇ ⁇ , ⁇ is achieved by changing ⁇ (m, n ) and ⁇ ( m , n ).
  • the information point 301 converted to screen coding is set to (m, n); the computer information is set to ⁇ ( ⁇ ⁇ 0 , 1, ⁇ , k ).
  • the dot pattern shown in Fig. 3 can be regarded as recording computer information by different distribution patterns of physics in phase modulation in two dimensions.
  • the advantage of this method is that the physics method due to phase modulation As long as there is an initial position point, the phase relationship of all the lattices can be derived, so that the number of position reference points can be saved.
  • the information groups of 0 to 3 are generally recorded using four different positions of the dot matrix mode as shown in FIG. Meet the needs of use, and can get higher recognition accuracy.
  • FIG. 5 is an example of a dot distribution in the form of a screen-coded information module group.
  • a plurality of screen codes are used as an information module group based on the screen characteristics, and a matrix distribution is performed by using a 4-digit multi-bit screen code set with the number of dots shown in FIG.
  • the screen of the screen encodes the dot distribution.
  • 501 is set as the information point; 502 is set as the screen code of the number of dots 1; 503 is set as the position at which the information point 501 can be distributed.
  • SH, S 1 2 , S 1 3 , S 1 4 , S 1 5 and S 1 6 are taken as the main vertical reference point lines; s 21 , S 31 , S 41 , S 5 and S 6 as main horizontal reference point columns; s 42 , s 43 , s 45 and s 46 as sub-vertical reference point lines; S 24 , S 34 , S 44 , S 54 and S 64 as vice Horizontal datum point column.
  • the main vertical reference point lines SH, S 1 2 , S 13 , S 14 , S 15 and S 16 are compared with the sub-vertical reference lines S 42 , s 43 , s 45 and S 46 , and the SH network points are distributed in the positive In the middle; s 41 dots are distributed on the far right; s 44 dots are distributed on the far left.
  • the difference between the main vertical reference line and the sub vertical reference line and the main horizontal reference point and the sub horizontal reference point can be identified as the direction information of the information module group.
  • S 62 , S 63 , S 65 and S 66 are set as screen coding of each 2-bit information, and 32-bit information can be recorded using these 16 screen codes.
  • the form of the additional information when taken as the print medium coordinates, it means S 22 , S 23 , S 25 , S 26 , S 32 , SS 35 , S 36 , S 52 , S 53 , S 55 , S 56 , S 62 , S 63 , S 65 and S 66 coordinate values of each multimedia print.
  • Error correction or verification processing can be performed by using a feature in which the coordinate values around the dot are a certain value.
  • s 22 and S 23 , S 25 and S , S 32 and S 33 , S 35 and S 36 , and S and S , S and S and S and S show the sequence values of the corresponding regions as their respective same values. Error correction or verification processing can be performed by using two features having the same value of the corresponding halftone points.
  • the information module group is composed of 6 rows and 6 columns, and since the first and middle two reference point rows or the reference point columns of each of the 6 rows and 6 columns are distributed, if any 6 rows are detected by the image sensor,
  • the screen code of the X6 column screen can identify the code value of the code of the information module group.
  • the image sensor can recognize any given X line because two reference points must be needed on both sides.
  • the information module group shown in Figure 5 minimizes the read area. A maximum of 32 bits of information can be recorded for an area of only 2 mmX 2 mm. In addition, for every 1 information point, information of 2 bits or more can be recorded.
  • the information point is set to 4 rows x 4 columns for the conventional method, it is necessary to set 9 rows x 9 column points containing dots.
  • the present invention if the same condition is used, only the commonalization of the reference point and the dot gradation characteristic of the printing screen are set. Set the dot matrix of 6 rows x 6 columns. Therefore, the overall gradation value of the shading formed by the information module group shown in FIG. 5 is lower, so that no uncomfortable feeling is generated for the printed matter.
  • the reference point of the information module group shown in FIG. 5 is based on the dot spacing characteristics of the printing screen, and SH, S 1 2 , S 1 3 , S 1 4 , 5 1 5 , and 5 1 of the main horizontal reference point column. 6.
  • S 2 1 , S 3 1 , S 4 1 , 5 51 and 5 6 ⁇ of the main horizontal reference point row S 42 , S 43 , S 45 and S 46 , S of the sub-level reference point column 24 , S 34 , S 44 , S 54 and S 64 are all set as the dot screen of the printing screen.
  • the advantage is that the quality of the shading formed by the information module group is better than the traditional method.
  • the dot matrix of the dot is easy to be seen by the eye, so the printed screen is better than the amplitude modulation screen.
  • both AM screens both AM screens.
  • the dot spacing is larger than the dot size formed by the dot settable area, ie IA .
  • the screen coding shown in Fig. 3 regarding the distribution of the screen-coded information points 201, records the computer information by the different distribution patterns of the physics included in the two-dimensional spatial phase modulation.
  • the information module group of FIG. 5 can be improved by reducing the number of reference dots as shown in FIG. Efficiency.
  • the initial information of the phase modulation of the halftone points can be used to calculate the characteristics of the code values of the respective network points, thereby forming a new information module group.
  • S 31 , S 32 , S 33 , S 34 , and S 1 5 are vertical reference point lines
  • S 13 , S 23 , S 43 , and S 53 are horizontal reference point columns.
  • S u , S 12 , S 14 , S 15 , S 21 , S 22 , S 24 , S 25 , S 41 , S 42 , S 44 , S 45 , S 51 , S 52 , S 54 and S 55 are screen codes each representing 2-bit information. Using these 16 screen codes, 32 bits of information can be recorded.
  • the distribution reference point of S 33 is distributed as the right side.
  • the code values of the respective screen codes can be identified using a horizontal reference dot column and a vertical reference dot row.
  • the present invention provides a method for solving the problem of print interference check in the dot matrix mode.
  • the so-called print interference grid pattern is the interference pattern that occurs when multiple regular patterns are overlapped.
  • the printing interference check phenomenon caused by the difference between the number of lines in the dot pattern and the number of printed lines of the printer and the printing machine is considered.
  • the number of lines of parallel lines is defined as L N .
  • L N The number of lines of parallel lines.
  • the interfering lattice period T m is as follows, which is the reciprocal of the interference grid frequency.
  • Another point of view is that a stable interference-free lattice state is formed by rotating the angles of the two sets of lattices by 45 degrees.
  • the difference between the number of lines in the dot matrix mode and the number of printed lines in printers and printers is due to the fact that the dot pattern is the pitch of the dot pattern calculated based on the ideal number of lines of the printing press. result.
  • the reality is that because of the error in the number of printer lines such as printers and printers, when the shading is printed by the dot pattern, interference plaque often occurs.
  • 701 is used as an information point
  • 702 is used as a 45-degree rotated 4-digit multi-bit screen coding with a dot number distribution of 1
  • 703 is used as a distributable area of the information point 701.
  • the dot pattern of (a) is used as the multi-bit value 0, the dot pattern of (b) as the multi-bit value 1, and the dot pattern of (c) as the dot matrix of the multi-bit value 2,
  • the mode is a dot pattern of multi-bit values 3 and (e) as a dot pattern constituting position information and a dot pattern of (f) as a dot pattern constituting direction information.
  • the information recording efficiency of the screen coding as shown in FIG. 7 can be calculated as 2.
  • the information point 701 of FIG. 7 is distributed by geometrical different positions or by the distributable area 703. The center and the information point 701 connect the lines at different angles to record information.
  • the information point 701 records information for other information points through different shapes.
  • the information point 701 records information on the center of the distribution point 703 and the connection line of the information point 701 by geometrically different angles.
  • FIG. 8 an example of the screen coding with the number of dots shown in FIG. 7 is shown in FIG. 8, and the information dot of the screen coding rotated by 45 degrees is shown.
  • the distribution of 701 can also be considered as recording computer information by different modes of physics of phase modulation of two-dimensional space.
  • the advantage of the method of recording computer information by the different distribution patterns of the phase modulation physics included in the two-dimensional space is that when As long as the initial state information of the dots is utilized, the phase values of the respective dots can be identified, so that the number of distribution reference points can be reduced.
  • the dot pattern shown in Fig. 7 can also be considered to record computer information by a different physics distribution pattern in the direction of radio wave transmission in a two-dimensional space.
  • the distributable area 703 is enlarged, and the different positions, directions, and phase modulations of the distributed information points 701 can also constitute a hexadecimal. Or multi-bit screen coding above 32.
  • the print interference gradation can be controlled to a minimum.
  • FIG. 9 shows that a plurality of screen codes are used as an information module group based on the screen characteristics, and then matrix is performed by using a screen format of a 4-digit multi-bit 45-degree rotation of the number of dots shown in FIG.
  • 901 is used as an information point
  • 902 is a position where the information point 901 can be distributed
  • 903 is a 45-degree screen coding with a point number of 1.
  • S 3 1 , S 3 2 , S 3 3 , S 34 and S 35 are used as vertical reference point rows, and S 13 , S 23 , S 43 and S 53 are used as horizontal reference. Point column.
  • the vertical reference points S 3 1 , S 3 2 , S 3 3 , S 34 and S 35 and the horizontal reference point lines S 13 , S 23 , S 43 and S after comparing 53 can be seen, S outlets 33 distributed in the lower left corner to the main difference between the different vertical reference point and the main line of the horizontal reference point sequence, as well as the direction information module group.
  • the form of the additional information when used as the coordinates of the printing medium, it means S u , s 12 , s 14 , s 15 , s 21 , s 22 , s 24 , s 25 , s 41 , s 42 , s 44 , s 45 , s 51 , s 52 , s 54 and s 55 coordinate values of respective areas of the print medium.
  • Error correction or verification processing can be performed by using a feature in which the coordinate value near the halftone is a certain value.
  • the sampling theory it must be twice the size of the printed dots, but as shown in Fig. 9, the information module groups s 22 and S 23 , S 2 PS 26 , S 3 ⁇ PS 33 can be configured by screen coding.
  • the corresponding dot values of S 3 PS 36 , S 5 ⁇ PS 53 , S 5 PS 56 , s 62 and s 63 and s 65 and s 66 are the same, so even if the size of each dot is used as the size of the printed dot, The sampling theory can still correctly identify the code values of the screen coding.
  • the pattern mode group is originally composed of 5 rows and 5 columns, but since it is rotated by 45 degrees, it becomes 9 rows and X9 columns.
  • the information module group shown in Fig. 9 is the same as the information module group shown in Fig. 5, and the read area is minimized. For an area of only 2.12mm X 2.12mm, 32-bit information can be recorded.
  • the spacing of the dots is larger than the size of the dots formed by the dots of the dots, that is,
  • the advantage is that the random distribution of the shading formed by the information module group is small, so the quality of the shading is superior to the traditional distribution method.
  • the printing device uses the Canon C 1 (made by Canon), the paper uses Japanese paper 1 2 8 g / m 2 and the Japanese paper 8 1. 4 g / m 2 , the screen coding method uses the above Figure 3 Or, in the dot pattern shown in Fig. 5, the respective results are as shown in Fig. 10, and a print interference check phenomenon occurs, so that the appearance of the printed matter is not good.
  • Figure 11 uses the same printing device as above, Nippon Paper 1 2 8 g / m 2 and Nippon Paper 8 1.4 g / m 2 and Figure 45 or Figure 9 rotated 45 degree screen encoded dot matrix
  • the mode, the respective printing results are shown in Fig. 11, there is no printing interference check phenomenon, and the appearance of the printed matter is also good.
  • a multimedia printing system will be described as an example of a processing flow of an information embedding device, an information embedding method, an information recognizing device, an information recognizing method, an information embedding program, an information embedding program, and an information embedding printing medium.
  • the print image data and the additional information to be buried in the print medium are input. Therefore, the method of inputting the print image information can be directly read from an electronic data recording device such as a memory or a hardware, or the printed image information can be read by a method of emulation printing from the drive of the printer.
  • the input additional information to be embedded in the printing medium is converted into a gradation characteristic according to the printing screen dot, a size characteristic of the printing screen dot or a printing network.
  • At least one of the spacing characteristics of the screen dots, the alignment characteristics of the screen dots, has the characteristics of the printing screen, and the pattern recognition may be geometric or physical information recording and the screen encoding of the information embedding code.
  • the optically readable information having the screen characteristics at the same time as the information embedding code which is simultaneously recognized by the pattern having the screen characteristics. That is, the meaning of the pattern recognition possible information embedding code is the same as the optically readable information embedding code.
  • the screen coding which is a possible information embedding code for the pattern recognition having the screen characteristics at the same time
  • the number of screen dots or the gray scale of the screen is encoded. All are minimized and uniformized.
  • the information module group is constructed in step (S3), and the transformed screen is encoded into a group of information modules by a matrix distribution method.
  • the information module group can be used to embed the coordinate information of the printing medium, and can also embed the sequence information of the corresponding playing area of the printing medium, and further can also embed the tracking information including the title, author and creation time of the document in the printing medium. Automatic reading of information from electronic documents of documents, etc.
  • the distribution of the information module group is used for each screen-coded network dot having the same gradation, and the screen gradation is larger as the overall gradation of the printing screen is shallower, and the read area is restricted in consideration of practical applications.
  • the dot spacing of each screen encoding can be set to a value more than twice the dot size.
  • the dot size value is defined as the range of regions in which information points can be distributed.
  • the buried area extraction step (S4) for the input print image data, as shown in FIG. 13, when the additional information is used as the sequence information of the corresponding play area in the print medium; the buried range should be defined as corresponding to the need to play Multimedia image data area; The outline of the image of each corresponding area can be extracted.
  • the print medium 1301 as each image area of the multimedia data to be played by each of (1), (2), (3), (4), (5), and (6), it is buried. And each of the corresponding multimedia that you want to play in each image area The image sequence value is used as the multimedia playback value. That is, the sequence value of each play area in the print medium is taken as additional information of the play value of the multimedia.
  • the matrix distribution area of the information module group for recording the coordinates of each printing medium can be extracted.
  • each coordinate information 1402 of the print medium 1401 is buried in the play area 1403 in the print medium.
  • the gap area of each document may be extracted first, and the additional information may be buried in the gap of the document.
  • (1), (2), (3), (4), (5), and (6) can be used as the gap regions of the respective documents.
  • the following different information embedding methods are performed by the three uses of Fig. 13, Fig. 14, and Fig. 15 .
  • the screen encoding information module group which is converted as the image sequence information of the playback value can be distributed to the corresponding area in order. Buried in the corresponding area with the same number of cyclic codes.
  • the screen encoding information module group for recording the X or y information of the printing medium coordinates can be distributed as the corresponding area.
  • the composition tracking information of the specified file or the electronic file of the document is converted into the screen-coded information module group as an automatic reading information, and then passed.
  • the same size shading image information as the gap between the corresponding documents is buried in the document gap.
  • the shading setting is also black.
  • the black, ⁇ version of the printed image data of M, Y, and is black by C, M, and Y colors, and the shading of the screen code is treated as a black ⁇ version.
  • the color of each screen code of the shading formed in the step (S5) is determined according to the color around the screen code. For example, when the color around the screen code is white, the screen coded color can be set to yellow.
  • the advantage of embedding screen coding as color information is that it has the least impact on the image quality of the printed image data.
  • the shading image may be overlapped with the printed image subjected to color processing, and the new print image data may be output through the plate making data of the ordinary printing machine; or the printer or the ordinary printing machine may be directly used.
  • the brush is embedded in the print medium.
  • Image data reading step (S1) The image sensor is used to read all or part of the image data embedded in the printing medium.
  • binarization processing is performed on the image read above.
  • the illumination portion of the image sensor module is in a uniform illumination state as much as possible.
  • the illumination brightness of the image sensor is controlled according to the brightness value thereof. Fixed value.
  • the reference point extraction step (S3) first, the center reference point where the row and the column of the reference point intersect is extracted, and then the dot matrix of each of the reference point rows or the reference point column is extracted according to the constituent rule of the reference point row or the reference point column. .
  • the code value of each information point is calculated by the position information of the relevant reference point line or the reference point sequence, and then the code value of the screen coding information module group is obtained. Or use the reference point as the initial value of the phase modulation, calculate the phase modulation result of each information dot matrix by the phase modulation algorithm, and calculate the code value of each screen coding, and calculate the code value of the screen coding information module group.
  • the code value of the screen-coded information module group calculated above is output.
  • the image sensor is connected to the multimedia microprocessor, and the multimedia microprocessor is connected to the SD card, the operation button, the USB, the sound input amplifier, and the sound output amplifier, respectively.
  • the power supply is connected to an image sensor, a lighting device, a multimedia microprocessor, an SD card, an operation button, a USB, a sound input amplifier, and a sound output amplifier.
  • the sound input amplifier is connected to the microphone, and the sound output amplifier is connected to the loudspeaker.
  • a CMOS image sensor is placed on the image sensor substrate 1801, a lens 1803 is placed between the CMOS image sensor 1802 and the printing medium 1806, and an image sensor cover 1805 made of a light guiding material such as plexiglass is used.
  • the LED illumination 1804 is not directly exposed to light, Light is received between light materials.
  • the advantage is that the printing medium can be as uniform as possible, so that the algorithm for binarizing the read image is simple, and the image processing speed of the microprocessor can be improved.
  • the information relating to the present embodiment is embedded in the printing medium, and can be produced by the following two methods.
  • One of the methods for forming the information embedded in the printing medium using the information embedding device, the input print image data is superimposed on the texture formed by the information processing by the screen coding, and printing or plate-making is performed until the creation is completed. Print media embedded in information.
  • the information embedding device is used for the printed matter that has been printed in advance, and the information is buried by the screen coding with reference to the content of the printed matter that has been printed in advance.
  • the shading which is processed and formed is printed as a sticker, and the sticker is pasted onto a corresponding area of the printed matter which is printed in advance, and another printing medium in which the information is embedded may be formed.
  • the advantage is that the printed matter can be made into a buried medium.
  • the right side surface 2002 and the left side surface 2003 of the organic glass light guide plate 2001 are subjected to light reflection plating, and then mounted on the printed circuit board 2007 by applying a fluorescent paint on the lower surface 2004 of the organic glass light guide plate 2001.
  • the light of the LED illuminator 2005 is reflected by the right surface reflection surface 2002 of the plexiglass light guide 2001 and the left reflection surface 2003, and is then illuminated by the fluorescent material coated on the bottom of the plexiglass to cause the light guide plate to emit light. It is characterized by a larger illumination area than an LED-only lamp and a high brightness.
  • FIG. 21 an example of a multimedia print including a photo album and a teaching material is exemplified.
  • the screen code as the playback value is embedded in each of the related playback areas including the print image data of the photo album, the textbook, and the like.
  • multimedia playback data corresponding to each playback value is attached as a database to the above information recognition apparatus to constitute a multimedia playback apparatus.
  • the multimedia playback device by clicking on a predetermined area of the multimedia print, the multimedia play data of the corresponding area can be played.
  • the information embedding device is used for the printed matter including the photo album, the teaching material, and the like printed in advance, and the image data of the printed matter such as the photo album and the teaching material is used. Setting a corresponding pasting pattern on each of the set playing areas, and then embedding the playing value through the information embedding method of the screen encoding on the corresponding pasting pattern, and then pasting the embedded information Out.
  • Each of the adhesives embedded with the information is attached to the corresponding area of the above printed matter to constitute a multimedia printed matter.
  • the respective playback values and the multimedia playback data corresponding to the playback values are transmitted to the information recognition device by the method of downloading, the USB method, and the SD card to constitute the multimedia playback device.
  • the multimedia playback device by simply pasting the paste pasted on the multimedia print, the multimedia play data corresponding to the multimedia play value embedded in the paste can be played.
  • a processing program having a repeating function can also be added to the multimedia playing device, and a multimedia playing device having a repeating function can also be constructed.
  • the processing steps of the multimedia playing device having the repeating function are:
  • the corresponding multimedia play data can be repeatedly played back by clicking on the print image pasted on the multimedia print or embedded with the multimedia play value.
  • the coordinate information of each page and the information of the number of pages can be embedded in the notebook, so that each page of the notebook has coordinate information and page number information.
  • the image sensor of the screen-encoded information recognizing device reads the screen-encoded image having the coordinate information on the pen tip, and then recognizes it by the microprocessor.
  • the screen code value that is, the coordinate value of the pen tip, is registered in the memory, and the position of the pen tip can be tracked, and all the tracking information is transmitted to the computer.
  • the text recognition OCR engine can convert the document handwritten on the notebook into a text code. Write the text written on the notebook directly to the computer.
  • At least one dot in the screen coded information module group is used as a parity checkpoint to perform parity check; as long as the parity of the code value of the identified code is checked and parity The situation of the dot parity is compared to determine whether the identified code is correct.
  • the method of adding data verification is described as follows:
  • the data value of the data matrix D can be calculated by:
  • V d u * A° + d 12 * A 1 ten... ten d ln * A 11 - 1 + d 21 * ⁇ ⁇ + d 22 * A n+1 ten... ten d 2n * A 2 " -1 +
  • the data pattern of the screen encoded multi-bit code be A
  • initial value is 1
  • the multiplication demodulation code check value R m is obtained by the following equation (7);
  • y ij' A
  • Y i Y i -A in equation (7) means that the subtracted digital modulo A is set back to ij Y i until Y i ⁇ A.
  • A the value of the digital modulus.
  • the probability of the additive demolding check and the multiplication demolding error check is 1/A 2 respectively. If the addition mode check and multiplication are used at the same time, The two verification methods are tested, and the probability of false verification is 1/A 4 , which greatly improves the calibration accuracy.
  • the addition check method of the screen coding of the digital mode is 8:
  • a multiplication check method for a screen code of 8 For example, a multiplication check method for a screen code of 8:
  • Fig. 23 is a diagram showing an example of another dot matrix mode.
  • 2301 is a centralized network
  • 2302 is a dispersed network
  • the computer information can be recorded by different concentrated and dispersed distributions, and the gray values of the two kinds of dots are the same, and therefore, the evenly distributed shading can be formed.
  • the 2301 and 2302 network points can also be regarded as the network points of different dot arrays, and can also be regarded as the network points with different frequency distributions, different amplitude modulation network points and frequency modulation network points.
  • Figure 24 is an illustration of a dot pattern in different directions. As shown in Figure 24; horizontal direction a can represent data 1, left oblique direction b can represent data 2, vertical direction c can represent data 3, and right oblique direction d can represent data 4.
  • the characteristics of the information recorded by the phase modulation of the halftone dot can also constitute a 4*4 dot matrix information module group when identifying the code value of the screen coding.
  • S 3 1 , S 3 2 , S 3 3 , and S 3 4 are vertical reference point lines
  • S 13 , S 23 , and S 43 are horizontal reference point columns.
  • S u , S 12 , S 14 , S 21 , S 22 , S 2 4 , S 4 1 , S 42 are used as screen coding sites each representing 2-bit information
  • S 4 4 As a check digit, 16-bit information can be recorded using these 8 screen codes. If 8 bits of information are recorded using each of the screen-coded dots around the screen, then 8 pieces of information can record 32 bits of information.
  • the distribution reference point of S 33 is distributed as the right side.
  • the code values of the respective screen codes can be identified using a horizontal reference dot column and a vertical reference dot row.
  • Fig. 26 shows an example of a multi-bit screen coding mode group having a 4*4 dot matrix rotated by 45 degrees.
  • S 3 1 , S 3 2 , S 3 3 , and S 3 4 are used as vertical reference point lines, and S 13 , S 23 , and S 43 are used as horizontal reference point columns.
  • 2-bit information can be recorded for each of the mesh points S u , S 12 , S 14 , S 21 , S 22 , S 24 , S 41 and S 42 , and S 44 is used as a check processing bit. Therefore, 8 information lattices can record 16 bits of information.
  • the information module group can be composed not only of 4*4 dot matrix, 5*5 dot matrix, 6*6 dot matrix, but also by 4*5, 5*6,
  • the arrangement direction of the information module group dots may be a horizontal rotation direction, a 45-degree rotation direction, and an array of various lattice forms in any direction of rotation.

Abstract

L'invention porte sur un procédé d'incorporation et d'identification d'informations dans une image d'impression, qui comprend les étapes suivantes consistant à : obtenir des informations supplémentaires devant être incorporées dans l'image d'impression (S1); transformer les informations supplémentaires en un code d'écran (S2); concevoir le code d'écran pour constituer des données d'image d'ombrage (S3); superposer les informations supplémentaires sur les données d'image d'ombrage pour obtenir de nouvelles données d'image et les délivrer (S4); lire les données d'image ayant les informations supplémentaires incorporées dans celles-ci sur un support d'impression, et effectuer un traitement de brillance et/ou de binarisation de celles-ci; identifier un micropoint du code d'écran; et délivrer un résultat identifié. Le procédé est susceptible d'être utilisé pour incorporer les informations supplémentaires dans l'image d'impression au moyen d'une imprimante courante, et a les avantages d'une aire de lecture faible, d'un faible degré d'interférences de diffraction, d'une vitesse d'identification rapide, etc.
PCT/CN2010/070828 2009-03-03 2010-03-02 Procédé d'incorporation et d'identification d'informations dans une image d'impression WO2010099738A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI470947B (zh) * 2012-12-24 2015-01-21 Ind Tech Res Inst 光通訊資料嵌入的裝置與方法以及光通訊系統和方法
US8942571B2 (en) 2012-12-24 2015-01-27 Industrial Technology Research Institute Apparatus and method for data embedding in light communication and the light communication system and method thereof
CN112419800A (zh) * 2020-11-24 2021-02-26 深圳市方直科技股份有限公司 课文内容任意区间点读播放的方法及装置

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5669538B2 (ja) * 2010-11-30 2015-02-12 シャープ株式会社 画像処理装置、画像形成装置、画像処理方法、コンピュータプログラム及び記録媒体
CN103118165A (zh) * 2011-11-16 2013-05-22 陈仲飞 点读笔手机
JP5688516B2 (ja) * 2012-01-21 2015-03-25 松翰科技股▲ふん▼有限公司 ドットコードを用いたデータ入力／出力方法
CN102615977B (zh) * 2012-03-22 2014-10-01 北京慧眼智行科技有限公司 编码图形的喷印方法与喷码机
CN103390146B (zh) * 2012-05-09 2017-02-15 天津阿波罗电子有限公司 一种可记录多比特信息的点阵模式的生成方法
CN103440050B (zh) * 2013-08-31 2016-08-10 苏元海 一种发声笔及其控制方法
CN105243409A (zh) * 2014-07-07 2016-01-13 顾泽苍 一种适于手机大众识读的印刷图像信息埋入及识别方法
CN109359657B (zh) 2015-10-19 2022-11-25 松翰科技股份有限公司 指标结构
CN105446628B (zh) * 2015-12-31 2018-08-07 北京奇禄管理咨询有限公司 一种点读方法
CN106250833B (zh) * 2016-07-22 2019-11-19 深圳棒棒帮科技有限公司 用于信息映射的微图形组的生成方法和微图组的识别方法
CN110626086B (zh) * 2018-06-25 2022-03-29 武汉华工激光工程有限责任公司 一种玻璃激光内雕微型二维码的方法
CN110722890B (zh) * 2018-07-17 2023-06-13 上海趣威文化发展有限公司 一种iod点读印刷品印刷方法
WO2020096009A1 (fr) * 2018-11-09 2020-05-14 凸版印刷株式会社 Procédé de génération de motif de formation de moiré, dispositif de génération de motif de formation de moiré et système de génération de motif de formation de moiré
CN111711757B (zh) * 2020-06-29 2022-03-08 广东小天才科技有限公司 防手指遮挡的试题拍摄方法、装置、电子设备和存储介质
KR102528759B1 (ko) * 2020-09-29 2023-05-08 주식회사 더코더 자율 주행 차량의 안전 운전 제어 시스템 및 이의 실행 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1598873A (zh) * 2004-08-17 2005-03-23 顾泽苍 可在纸上大量记录数据的网屏编码控制方法
CN1928916A (zh) * 2006-08-21 2007-03-14 顾泽苍 印刷介质证书证件及其复印件的防伪处理方法
CN101101664A (zh) * 2006-07-04 2008-01-09 天津市阿波罗信息技术有限公司 纸介质原件及复印件的防伪处理方法
CN101159806A (zh) * 2007-11-09 2008-04-09 天津市阿波罗信息技术有限公司 在浮字的边缘埋入信息的防伪处理方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1548635B1 (fr) * 2002-09-26 2009-06-24 Kenji Yoshida Procede entree/sortie de reproduction d'information a systeme de points et dispositif de reproduction d'information
JP4054339B2 (ja) * 2005-05-12 2008-02-27 澤蒼 顧 情報埋込コード、情報埋込コードの生成方法、および情報埋込コードの生成装置
CN200997137Y (zh) * 2006-11-01 2007-12-26 天津市阿波罗信息技术有限公司 导入网屏编码的印刷介质多媒体实现装置
CN201017493Y (zh) * 2007-03-15 2008-02-06 潘建会 一种点读笔
CN101079112B (zh) * 2007-04-23 2012-12-05 天津市阿波罗信息技术有限公司 印刷介质多媒体系统多媒体制作部分实现方法
CN101127089B (zh) * 2007-07-02 2013-05-08 天津市阿波罗信息技术有限公司 一种新的可在印刷媒体上埋入大量信息的实现方法
CN201194112Y (zh) * 2008-05-12 2009-02-11 刘建生 摄像式多功能点读机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1598873A (zh) * 2004-08-17 2005-03-23 顾泽苍 可在纸上大量记录数据的网屏编码控制方法
CN101101664A (zh) * 2006-07-04 2008-01-09 天津市阿波罗信息技术有限公司 纸介质原件及复印件的防伪处理方法
CN1928916A (zh) * 2006-08-21 2007-03-14 顾泽苍 印刷介质证书证件及其复印件的防伪处理方法
CN101159806A (zh) * 2007-11-09 2008-04-09 天津市阿波罗信息技术有限公司 在浮字的边缘埋入信息的防伪处理方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI470947B (zh) * 2012-12-24 2015-01-21 Ind Tech Res Inst 光通訊資料嵌入的裝置與方法以及光通訊系統和方法
US8942571B2 (en) 2012-12-24 2015-01-27 Industrial Technology Research Institute Apparatus and method for data embedding in light communication and the light communication system and method thereof
CN112419800A (zh) * 2020-11-24 2021-02-26 深圳市方直科技股份有限公司 课文内容任意区间点读播放的方法及装置

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