JP2000079782A - Individual identification information forming device and individual identification information system consisting of individual identification information reading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to issue a printed matter, which is hard to forge or alter and to which an individual identification pattern information has been potentially given, and to highly accurately mechanically read the individual identification pattern information on a printed matter at a high speed. SOLUTION: In a forming device A, a photograph of an individual's face 5 is inputted and decomposed into RGB image information so as to produce CMYK printing plate image information for a printing screen at a color image forming part A2. In an ID pattern information forming part A3, an ID pattern information consisting of the feature values of a printing screen form inherent in the individual is formed and registered to a restricted data registering part C. In an ID pattern superposingly forming part A4, a digital color printing image information is formed by superposing the ID pattern information on the CMYK printing plate image information. From an outputting part A5, a printed matter, to which the ID pattern information unrecognizable with a normal viewing is potentially given and which has a photograph of the individual's face, is issued. At a reading device B, an ID information is actualized among issued images in an image processing part B2 so as to compare and collate with the ID information registered in advance in an ID pattern information discriminating part B4 in order to judge whether the printed matter is ture or false, resulting in displaying the result of the judgment in a displaying part B5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal information identification system comprising a personal identification information creating device and a personal identification information reading device.

[0002]

2. Description of the Related Art Recognizing that a printed matter such as a passport, a credit card, various certificates, etc. is the owner or owner of a printed matter is to read personal identification information in the printed matter. The personal identification information is an image line of character information in which the name of the person, the address of the office, the telephone FAX number, and the like are printed. Information obtained from these streaks can usually be confirmed by the naked eye, and at the same time it is acknowledged that the printed matter is the property of the person, but in order to further clarify the individual, a photograph, for example, a face photograph may be used. is there. Usually, the printing method of such a printed material is offset printing or a color printer (sublimation type, thermal transfer type, ink jet type) or the like, and the process colors of cyan, magenta, yellow, and (black) are usually changed to an AM printing screen or a random dot screen ( FM, dither pattern, etc.) and scanning screen lines are printed by a general tone reproduction method. Therefore,
When referencing the printed matter and the person, it is natural to confirm that the printed name is the person's thing, and forgery other than confirming that the printed face photograph is the person's face with naked eyes No preventive element has been applied. For this reason, in order to prevent forgery, ID (personal identification) information is added to the printed matter as a forgery prevention element in addition to visual inspection of the face photograph, and the ID (personal identification) information is read using a machine reading means. Is desirable.

There are various methods for mechanically reading information in printed matter, and a machine reading inspection method is widely used in various fields today for authenticity discrimination.
Today's machine reading inspection methods for printed materials are magnetic ink,
These technologies, such as detecting functional inks such as infrared reflective inks and fluorescent inks, and materials such as fibers, materials, and chemicals that make up print media, are caused by specific electromagnetic waves that cannot be detected by humans. In many cases, the production of printed matter depends on the material suitability, and can only be applied to products that are economically viable in terms of production cost. Therefore, as a method that does not particularly consider the production cost of printed matter, an optical reading method for a pattern on a printed matter to which a printing material such as a general printing ink that can be seen is applicable is desirable. OCR, OMR, bar codes, two-dimensional codes, and the like are known as optical reading methods that are relatively easy to apply, but these optical reading methods require the use of encoded print images. In such a case, there are restrictions such as securing a machine reading area in the design and specifications. In addition, these optical reading methods are widely available in the market, and because the code can be easily visible as a printed image, there is also a risk of being decoded by an intelligent criminal. Is not enough. Therefore, in a forgery / falsification prevention method that does not depend on the material suitability of printed materials, for example, securities such as banknotes, stock certificates, and bonds, passports, credit cards, various certificates, and important documents can be discriminated by machine reading. Development of inspection method technology is desired.

Japanese Patent Application Laid-Open No. 08-84251 discloses that “a tracking pattern adding device 38 adds a tracking pattern signal to an image signal output from the image processing circuit 60 after processing a color input signal from the scanner unit 2. JP-A-09-321941 states, "If the operator desires to add a tracking pattern, the controller 14 transmits the selected information to the device 15 and the tracking pattern including the information desired by the operator. Is added to the copy. " The color copiers described in these documents give information called a tracking pattern to unauthorized copying, but issue arbitrary ID (personal identification) information,
This system does not provide a system which can read the ID (personal identification) information by machine reading and determine whether the information is appropriate or not.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a personal identification information creating apparatus, which forgeries or forgeries without depending on the appropriateness of the printed material such as a printing medium, a printing method and an ink material. An object of the present invention is to provide a personal identification information creating device that issues a printed matter to which personal identification pattern information has been latently provided, which can prevent falsification. In the personal identification information reading device, the personal identification information issued by the personal identification information creating device is provided. An object of the present invention is to provide a personal identification information reading device capable of machine-reading the personal identification pattern information of a printed material to which pattern information latent provision has been performed with high accuracy and high speed.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided an image processing apparatus comprising:
In a personal identification information creating device for issuing a printed matter containing D (personal identification) pattern information, the personal identification information creating apparatus may print one or more high-brightness printing colors on a printing screen based on ID (personal identification) information and a photograph image of a printed matter containing photographs. An ID (individual) comprising characteristic values of an individual print screen shape created based on ID (individual identification) information separately formed from the printed matter or input means on the print screen by forming gradation information of a photograph. (ID) pattern information cannot be added and ID (personal identification) information cannot be identified by normal visual inspection.
This is a personal identification information creating apparatus that creates and issues printed matter to which D (personal identification) pattern information is latently given.

The present invention is characterized in that the ID (personal identification) pattern information given on the print screen has a machine-readable reference figure whose information is invisible and meaningless in the pattern. 1. The personal identification information creating device according to 1.

According to the present invention, the machine-readable reference graphic is a personal identification information indicating a reference reading direction and a head position of the ID (personal identification) pattern information of the photo-printed matter to which the ID (personal identification) pattern information is latently given. It is a creation device.

According to the present invention, there is provided image input means for inputting a face photograph (an image unique to an individual) formed on a print medium (or a base material) and decomposing the photograph into digital color image information of one or more colors; A color image creating means for creating one or more digital color printing plate image information for a printing screen from the above digital color image information, and personal identification (ID) information formed on a printing medium (or base material) are input. ID (personal identification) pattern consisting of personal identification information input means to be executed and a characteristic value of a print screen shape unique to an individual created based on the personal identification information (corresponding to an area of the print screen by adding an arbitrary code). Personal identification pattern information creating means for creating information and registering the personal identification pattern information in a secret data registration unit while associating the personal identification information with personal information; The personal identification pattern information creation means creates one or more digital color printing image information for print screen created by the personal identification pattern information creation means having the tone information on the color with high brightness among the color information having high brightness. Personal identification pattern information superimposing means for superimposing the personal identification pattern information thus created to create digital color printing image information with latentness of personal identification pattern information; and a personal identification pattern information created by the personal identification pattern information superimposing means. An output means for outputting a printed matter on which a face photograph (an image unique to an individual) to which latent identification information that cannot be visually identified is normally printed based on the latently added digital color printing image information is printed. An identification information creation device.

According to the present invention, a face photograph (an image unique to an individual) printed on a print medium (or a base material) is inputted and the R.P. G. FIG.
B. Image input means for decomposing into digital color image information; G. FIG. B. A color image forming means for forming cyan (C), magenta (M), yellow (Y), and black (K) digital color printing image information for printing from the digital color image information; Material)
A personal identification information input means for inputting an ID (personal identification) printed thereon; and a characteristic value of an individual print screen shape created based on the personal identification information (printing by adding an arbitrary code) Personal identification pattern information creating means for creating personal identification pattern information (according to a screen area) and registering the personal identification pattern information in a secret data registration unit in association with the personal identification information; Created by C. means. M. Y.
K. The personal identification pattern information created by the individual identification pattern information creating means is superimposed on the stamp image information having the gradation information of yellow (Y) of the digital color stamp image information, and the personal identification pattern information is implicitly provided. C. M. Y. K. A personal identification pattern information superimposing means for creating digital color printing image information; and C.I. M. Y. K. Output means for outputting a printed matter on which a face photograph (individual unique image) to which personal identification pattern information which cannot be identified by visual inspection is given based on the digital color printing image information is printed. Device.

The present invention is the personal identification information creating device, wherein the personal image is a face photograph.

According to the present invention, the color image creating means includes a C.I. M. Y. K. The personal identification information creating device has no black (K) component in the digital color printing image information.

According to the present invention, the color image creating means includes a C.I. M. Y. K. This is a personal identification information creating apparatus in which an image area other than a person in a digital color printing image is a substantially uniform density area (halftone screen image having a printing screen area of about 50%).

According to the present invention, there is provided a personal identification information reading apparatus for judging the authenticity of a printed matter containing an image unique to an issued individual, wherein ID (personal identification) information is revealed from the image information of the printed matter, and The personal identification information reading device determines the authenticity of the printed matter by comparing and collating ID (personal identification) information with previously registered or declared ID (personal identification) information.

According to the present invention, there is provided image input means for inputting a personally unique image (face photograph) of a printed matter (card) on which a personally unique image to which the invisible personal identification information is latently added is printed, and the printed matter. ID assigned to (card)
(Personal identification) Image processing means for revealing information, ID (personal identification) pattern information storage means for recording and storing the characteristic value of the print screen shape unique to the individual, and the revealed ID (personal identification) from the image processing means A personal information identification unit for comparing and collating information with a characteristic value of a print screen shape peculiar to the individual from the ID (personal identification) pattern information storage unit; and displaying or printing a determination result by the personal information identification unit. A personal identification information reading device comprising a display means.

According to the present invention, there is provided an image input means comprising an optical input device for inputting a photographic image of a printed matter containing a photo with the ID (personal identification) pattern information latently provided, and for embodying the ID (personal identification) pattern information. Image processing means;
ID (personal identification) pattern information storage means for recording and storing ID (personal identification) pattern information comprising characteristic values of a print screen shape unique to an individual in association with ID (personal identification) information, and ID (personal identification) of the printed matter Based on the information or the ID (personal identification) information from the separately provided ID (personal identification) information input means, the corresponding ID (personal identification) pattern information is selected from the ID (personal identification) pattern information storage unit. Personal information identifying means for comparing and comparing the selected ID (personal identification) pattern information with the revealed ID (personal identification) pattern information, and display means for displaying a judgment result by the personal information identifying means And a personal identification information reading device that can identify even a plurality of print screen shapes on a photograph gradation.

The present invention relates to a personal identification information reading apparatus for reading a non-visible and meaningless machine-readable reference figure in ID (personal identification) pattern information given on the print screen and enabling identification. is there.

According to the present invention, the machine-readable reference graphic has a function of indicating a reference reading direction of the photo-printed material and a leading position of ID (personal identification) pattern information.
(Personal identification) A personal identification information reading device that reads pattern information with high accuracy and speed.

According to the present invention, there is provided a color for producing each color image information of cyan (C), magenta (M) and yellow (Y) by optically decomposing an image (color face photograph) peculiar to an individual in a printed material to be identified. Image information creating means, color image information extracting means for extracting yellow (Y) color image information among the color image information creating means, and yellow (Y) color image information extracted from the color image information extracting means (Individual identification) pattern information separating means for separating the image information into image information and ID (personal identification) pattern information unique to the individual, and the ID separated by the ID (personal identification) pattern information separating means. (Personal identification) ID (personal identification) pattern information conversion means for decoding pattern information and converting it into numerical or symbolic information, and ID (personal identification) for inputting declared ID (personal identification) information And boric input means, said ID
ID (personal identification) information comparison for comparing and collating ID (personal identification) information input from the (personal identification) information input means with ID (personal identification) information composed of numerical or symbol information converted by the information conversion means. This is a personal identification information reading device comprising a collating means.

According to the present invention, the color image information creating means includes an image (color face photograph) unique to an individual on a recording medium (or paper).
This is a personal identification information reading device that extracts only image information of a background portion where there is no.

In the present invention, the ID (personal identification) information converting means includes at least individual pattern information generating means for generating individual pattern information corresponding to each of a plurality of numeral or symbol information inputted from the input means. , The ID
(Personal identification) The composite ID (personal identification) pattern information separated by the pattern information separating means is sequentially decomposed into a plurality of independent individual ID (personal identification) pattern information, and the decomposed individual ID (personal identification) is separated. The pattern information is compared and compared with the individual pattern information in the individual pattern information generating means to decode the composite ID (personal identification) pattern information in the identification target print as ID (personal identification) information including a plurality of numbers or symbol information. It is a personal identification information reading device.

The present invention is a personal information identification system comprising the personal identification information creating device and the personal identification information reading device.

[0023]

Embodiments of the present invention will be described below. The personal identification (ID) information system of the present invention includes a personal identification (ID) information creating device and a personal identification (ID) information reading device. The personal identification information creating device issues a printed matter with latent personal identification pattern information that is difficult to forge or falsify, and the personal identification information reading device enables the personal identification pattern information of the printed material to be machine-readable with high accuracy and high speed. .

The general operation of the personal identification information creating device will be described below. An image unique to an individual (for example, a face photograph) is input and decomposed into digital color image information (for example, RGB image information) of one or more colors. Create image information (for example, CMYK image information). On the other hand, ID pattern information is created by the ID pattern information creating means, based on the ID information, and the ID pattern information is made up of the characteristic value of the print screen shape peculiar to the individual. Register in the data registration means. The ID pattern superimposition creating means includes a printing plate image having gradation information of a color with high brightness among digital color image information (for example, CMYK image information) for one or more colors for a print screen created by the color image creating means. Information (for example, yellow (Y)) is superimposed with the ID pattern information created by the ID pattern information creating means to create digital color printing image information with latent ID pattern information, which is output from the output means by normal visual observation. A printed matter with a face photograph to which ID pattern information that cannot be identified is latently given is issued. As the printing screen of the printed matter, a uniform density area is provided in a background portion other than a person of a screen of a printing color having high brightness in the case of a special color, and a printing screen of yellow (Y) in the case of a CMYK printing color. , An ID that is normally invisible to this part and includes an arbitrary encryption definition
(Personal identification) By generating the pattern information in the form of a screen, forgery or falsification can be prevented without depending on the print material such as the printing medium, the printing method, and the ink material.

The general operation of the personal identification information reading device will be described below. The ID information is revealed by an image processing means from among the images of the issued personal printed image-containing printed matter (for example, a face photograph), and the revealed ID information and the previously registered or declared ID (personal ID) information is compared and collated by ID pattern information identifying means to determine the authenticity of the printed matter, and the result is displayed by the display means. In the personal identification information reading device, a reference pattern (dummy figure) for machine reading is provided in the personal identification pattern information of the printed matter to which the personal identification pattern information latent has been added, and the personal identification pattern information (dummy figure) itself is added to the personal identification pattern information (dummy figure) itself. By giving the meaning such as the reference reading direction and the head position of the pattern information, an appropriate cutout dimension can be obtained when the personal identification pattern information is machine-read, and the machine reading can be performed with high accuracy and high speed. .

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is a personal identification information system comprising a personal identification information creating device A and a personal identification information reading device B as shown in the system flowchart of FIG.

(Embodiment 1) In this embodiment, a card 4 containing a face photograph 1 to which ID (personal identification) information is added is taken as an example.
The personal identification information system including the personal identification information creating device and the personal identification information reading device in the card shown in FIG. 1 will be described more specifically with reference to the drawings. The face photo card printed in this embodiment has a face photo (1) as shown in FIG. 2, as well as an image printed with the name (2) of the person, the work address and the telephone FAX number (3). Card (4). The information obtained from these streaks can usually be confirmed with the naked eye, and at the same time it acknowledges that the card is a personal property. Usually, the printing method of such cards is offset printing or a color printer (sublimation type, thermal transfer type, ink jet type) or the like, and cyan, magenta,
The process colors of yellow and (black) are usually printed by a general tone reproduction method such as an AM printing screen, a random dot screen (FM, dither pattern, etc.), or a scanning screen line. Therefore, when inquiring the card and the person, it is natural to confirm that the printed name is the person's thing, but it is necessary to confirm that the printed face photograph is the person's face visually. No anti-counterfeiting elements have been applied. Therefore, in the present invention, ID (personal identification) information which cannot be easily recognized by ordinary naked eyes is added to the face photograph of the card.

First, the personal identification information creating apparatus A shown in FIG.
In producing a card 4 containing a face photograph 1 to which ID (personal identification) information as shown in FIG. 8 is added, a face photograph (1) which is information unique to an individual of 5 cm square as shown in FIG. 3, for example. Was input as 24-bit RGB digital color image data (hereinafter referred to as RGB image) using an optical image input device (flatbed color scanner) in the image input unit A1 of the personal identification information creating device A. In the present embodiment, a flatbed color scanner is used for the optical image input device. However, the present invention is not limited to this embodiment as long as digital color image data can be obtained.

The color image creating section A2 of the personal identification information creating apparatus A
As shown in FIG. 3, the RGB images are decomposed by image processing software installed in an image processing computer to create respective printing image information of cyan (C), magenta (M), and yellow (Y). . In this embodiment, black (K) is not used so that yellow (Y) information can be easily separated in an ID (personal identification) pattern information identification section B4 of the personal identification information reading device B described later (see later). Black may be used if the separation of yellow information is not hindered in machine reading), and CMYK digital color image data (hereinafter referred to as CMYK image) (6) without K component is obtained.

Next, the background portion (8) other than the person portion (7) in the CMYK image (6) shown in FIG. A substantially uniform density region (hereinafter referred to as a halftone region) was provided so as to have a print screen area ratio. However, the yellow (Y) information in the CMYK image does not necessarily have to have a print screen area ratio of about 50%, and the screen area ratio is limited as long as the screen shape can be measured when reading the screen shape described later. It does not do. Further, since it is sufficient that halftone dots having an area ratio of about 50% exist in the image, the background part (8) does not necessarily have to be provided.

Next, the ID (personal identification) pattern information creating unit A3 shown in FIG. 1 converts the ID (personal identification) information into a screen including an arbitrary encryption definition (described in detail in the second embodiment). Rewrite to a PostScript language that can be generated as a shape, and execute the halftone screen information of image processing software that has a function to define a spot function in a PostScript language consisting of a unique description character string for each ID (personal identification) information ID (personal identification) information is added by writing as an instruction. FIG. 4 shows highlights (image area ratio of about 10%) among the screen shapes obtained by the image area ratios generated at each density stage of the CMYK image in the execution instruction of the halftone screen information described above, Middle (image area ratio about 50%),
This is the shape of the unit print screen (9) generated when gradation information of shadow (image area ratio is about 90%) is obtained.
Since the description content of the postscript language in the halftone screen information is a screen generation program, it is recorded and stored as a secret data registration unit C shown in FIG. 1 on a recording medium, for example, a floppy disk. The cryptographic definition for the addition of ID (personal identification) information was made according to a later-described agreement (second embodiment) prepared for the present embodiment. Also, in the present invention, a PostScript language is used for screen generation, but this is not a limitation as long as it is a programming language capable of screen generation.

Next, in the ID (personal identification) pattern information superimposition creating section A4 shown in FIG. 1, the data channel of the CMYK image (6) for executing the screen generation program is a yellow data channel (FIG. 5). Only in 10), a print screen having the shape of the unit print screen (9) is applied at 30 lines / inch by the execution instruction of the halftone screen information, and 150 lines / inch is printed on the data channels other than the data channel. A CMYK image (11) with ID (personal identification) information added latent was obtained by giving a description command on a program for generating a normal print print screen having a screen ruling. In this embodiment, only the yellow data channel has an ID.
The reason why the (personal identification) information is applied is that yellow among the printing colors yellow, magenta, yellow and black, which has the highest lightness, makes it difficult for the naked eye to recognize the object shape.

Next, using the page layout software for the image processing computer,
C (with personal identification) information
In addition to the face photo (1) according to 1), the name of the person (2), work address and telephone fax number (3) are arranged in the print layout of the card (4) shown in Fig. 2, and page layout data is created. I do.

Next, the page layout data is printed by the output unit A5 shown in FIG. 1 using a PS-compatible color printer. The post-script compatible color printer decodes the execution command in the post-script language of the latently given CMYK image (11) of the ID (personal identification) information in the page layout data, and prints the ID (personal identification) information by printing. A card (4) with a latent photo is issued. In the normal visual observation of the issued card (4), the ID is added to the face photograph (1).
(Personal identification) cannot be identified as latently granted.

In this embodiment, a postscript color printer is used to issue the face photo card (4). However, if the effect of the present invention can be obtained, the output device, printing method, and material to be issued can be changed. Not limited.

The color printing method does not need to be CMYK printing colors, and a spot color (intermediate color other than CMYK printing colors) may be used as a printing color. In the CMYK printing colors, yellow having the highest lightness makes it difficult to recognize the image line shape with the naked eye. However, if the printing color has a high lightness even in a special color, the effect of the present invention is achieved. Therefore, for example, the color sample PANTON 127C (yellow), PANT
ONE1797C (red), PANTON2716
If the print color is C (blue), PANTO
Since the printing color of NE127C has the highest lightness, it is desirable to apply the unit printing screen (9) shown in FIG. 4 to PANTON127C.

(Example 2) ID latently assigned to the face photograph (1) on the printed card (4) shown in FIG.
(Personal identification) information is given as a description command on the screen generation program in accordance with the rules described later.

First, ID (personal identification) pattern information is applied as a potential print screen shape (hereinafter referred to as an implicit I
It is called D pattern. At this time, at the design stage in screen generation, as shown in FIG. 6, the basic unit screen is divided into a plurality of, for example, four, and different figures can be arranged in each of the four divided parts. In the present embodiment, figures meaning numbers “1” to “12” are represented as different figures. Furthermore, it represents a dummy figure having no meaning as a number. Based on this agreement, for example, when the birthday of the owner is ID (personal identification) information, and the birthday of the owner is January 7, as shown in FIG. Is placed, the figure representing the January number “1” is placed in the upper right, and the first digit of the date is 7 in the lower left.
Since it is a day, the figure representing the number "10" is represented by the second digit "0"
(If it is 17 days, place a figure representing the number "1"), and in the lower right, the first digit of the date "6"
Can be placed and described. Therefore,
It is personal information. However, the arrangement of the ID (personal identification) information is not limited in the present embodiment, and any graphic that can be printed may be used. Further, in the present embodiment, numbers from “1” to “12” are used as codes used for ID (personal identification) information.
A unit print screen shape consisting of figures that can be proved and meant to be unique to an individual can sufficiently effect the effects of the present invention. Therefore, what kind of figures and arrangement and combination of these signs (numbers) can be used. May be used. In addition,
In this embodiment, the position of the dummy figure in the potential ID pattern is set at the upper left as a rule on the apparatus.
If necessary, they may be arranged at other positions.

The dummy figure shown in FIG. 6 is a figure having no meaning as a number.
As a method of improving the machine reading accuracy of the personal information reading device B shown in FIG. 1 described later, it may be used as a reading reference graphic in machine reading. For example, the size of the cutout range for machine reading can be obtained by calculating the appropriate cutout size by obtaining the distance between the reference figure and an adjacent reference figure that is equally arranged. Note that the dummy figure may be used as a leading pattern of a plurality of potential ID patterns.

(Embodiment 3) The personal information reading apparatus B shown in FIG. 1 reads ID (personal identification) information latently given to the face photograph (1) on the printed card (4) in FIG. An image input unit B1 comprising an optical image input device (for example, a CCD camera, a color scanner, etc.) for inputting a face photograph (1) of the card (4) as an image, and an ID latently assigned to the card (Personal identification) An image processing unit B2 by an image processing computer for exposing information, an ID (personal identification) pattern information storage unit B3 for recording and storing characteristic values of a screen shape unique to an individual, and a card (4). A secret data registration unit C that extracts corresponding ID (personal identification) pattern information from the read personal information or personal information according to the person's declaration, ) The information compared to the secret data registration unit extracted from C the ID (personal identification) information, an individual information identification unit B4 to match the personal information identifying unit B4
And a display unit B5 for displaying the results of the comparison and, if necessary, comparing and comparing the results as a visible image or text on a CRT monitor or printer. However, in the present invention, as long as the processing is executed by each of the processing units described above, there is no restriction on the configuration of the device such as sharing of the image processing unit B2 and the display unit B5.

First, the face photograph (1) on the face photograph card (4) taken from the optical input device at the image input section B1 becomes a 24-bit RGB image.
The image is captured by the image processing computer of the image processing unit.
The input image in the optical image input unit B1 is a print screen to which the ID (personal identification) information of the card is implicitly assigned, so that the image of the unit print screen of the print portion can be almost completely resolved. Resolution is required. In the present embodiment, a part of the background part (12) of the face photograph (1) is captured by a flatbed color scanner at a reading resolution of 4000 dpi per inch, and the read image size is 512 × 512 pixels in vertical and horizontal directions.
Color digital image data (13) consisting of RGB images shown in FIG. 8 was obtained.

Next, in the image processing section B2, the image density of RGB from the image (13) is shown in FIG. A threshold value is provided, and a cyan component, a magenta component, and a yellow component are extracted as a binary image. The binary image is a cyan component extracted image (1
4), a magenta component extraction image (15), and a yellow component extraction image (16), respectively, but the only image actually used for post-processing is the yellow component extraction image (16), and the images (14), (15) ) Is only used to explain the present invention in an easy-to-understand manner, and is not necessary for the present invention.
By extracting the yellow component extraction image (16),
The characteristic value of the unique unit print screen shape (9) based on the ID (personal identification) information latent in the card (4) is extracted. That is, the ID (personal identification) information latently given to the card is revealed. Further, a desired range is cut out from the yellow component extraction image (16) by a cutout range (17) formed of a 133 × 133 pixel square, and a binary image for determination (18) is obtained.

Next, in order to confirm whether or not the ID (personal identification) pattern information applied to the card has a unit printing screen shape unique to the owner who specifies the card owner, the card owner or The ID (personal identification) information is obtained from another manager, a management organization, or the like, and the secret data registration unit C shown in FIG. The unit print screen shape in the postscript language is calculated inside the image processing computer, and is recorded and stored as a screen shape having genuine ID (personal identification) information. Alternatively, the screen shape in yellow (Y) information applied to the issued card is directly measured in advance before handing to the individual user, and the screen shape applied to the card before the user possesses the card Are stored in the ID (personal identification) pattern information storage unit B3 of the personal identification information reading device B shown in FIG. 1 directly or via the secret data registration unit C.

The ID (personal identification) pattern information storage section B3 stores a number of pieces of data describing the characteristic values of the unit print screen shape possessed by a large number of persons in addition to the unit print screen shape (9) described in this embodiment. The shape feature value data group (19) of FIG.
Of the value image (18) and the image (21) having the genuine unit print screen shape unique to the owner, which is directly measured in advance and stored in the ID (personal identification) pattern information storage section B3. According to the characteristic value of the unit print screen shape or the screen generation program recorded on the external recording medium in the secret data supply unit C, the unit print screen shape in the postscript language is internally generated in the image processing computer of the personal information identification unit B4. The screen shape having the calculated and authentic ID (personal identification) information and the unique unit print screen shape (9) based on the ID (personal identification) information latent in the card (4) extracted by the image processing unit B2. When the feature values are compared and collated on a computer for image processing, the feature values of the unit print screen shape are genuine. When substantially coincides with the screen pattern having an ID (individual identification) information, said card is of the cardholder's identity is determined. When the image is compared with the image (20) having the unit print screen shape owned by another person but not the owner, the characteristic value of the unit print screen shape is the genuine ID (personal identification).
If the screen does not match the information-bearing screen shape, it is determined that the card is not the card owner's own. Further, if necessary, the comparison and collation results can be displayed as a visible image or text on a CRT monitor or a printer constituting the display section B5.

In this embodiment, in order to confirm that the owner of the card (4) in FIG. 8 is the owner, the card (4) is applied to a portion of the background portion (12) having a print screen area ratio of approximately 50%. Although the determined ID (personal identification) is used as a determination element, in order to further improve the determination accuracy, the print screen shapes of a plurality of portions having different print screen area ratios may be collectively used as the determination element. That is, the shape of the unit print screen (9) obtained at the image plane recognition rate generated in each density step shown in FIG. The change in the shape of the print screen at step (1) is not a linear change, but becomes a complicated print screen shape at each density step, and the change in the print screen shape is a non-linear change. Therefore, a portion of the printing screen (9) consisting of a plurality of printing screen area ratios
Are different from each other. For example, highlight (image area ratio about 10%), middle (image area ratio about 50%), shadow (image area ratio about 90%) shown in FIG. By collectively recording and storing the characteristic values of all the shapes of the unit print screen (9) generated when the gradation information is obtained, the determination accuracy is improved by increasing the number of determination elements.

The digital color image data handled by the image input section A1 of the personal identification information creating apparatus A and the image input section B1 of the personal identification information reading apparatus B of this embodiment is a 24-bit RGB image. There is no particular limitation on the color image format as long as it produces an effect. Also,
Regarding the threshold value in the image processing unit B2 shown in FIG. 9, the CMYK image (11) of the card (4) printed in the gradation step of 256 gradations of the 24-bit RGB image.
It is desirable to adjust as needed according to the characteristics of the input optical system, and the threshold value differs depending on the number of bits of the digital color image data image. Therefore, the threshold value is not limited to the numerical value shown in FIG.

(Embodiment 4) Next, a method of determining the authenticity of a copy of a card (4) with a face photograph issued by the personal identification information creating apparatus A of the present invention will be described. The card (4) with a face photograph issued by the personal identification information creating apparatus A is copied by a color copying machine (for example, Canon CLC-700 (trade name)) to obtain a copy (22) shown in FIG. ID (personal identification) information reading device B shown in the third embodiment.
Is used to identify ID (personal identification) information. The conditions for identification are performed in the same manner as in the third embodiment. First, a part of the background part (24) of the face photograph (23) on the copy (22) is read by the flatbed color scanner of the image input part B1 at a reading resolution of 4000 dp per inch.
i, the read image size is 512 × 512 pixels vertically and horizontally
Photographing was performed with pixels, and color digital image data (25) composed of RGB images shown in FIG. 11 was obtained.

Next, the image processing unit B2 converts the color digital image data into RGB image densities from the image (25) using image processing software installed in the computer for image processing as shown in FIG. Set a threshold,
The cyan, magenta, and yellow components are extracted as a binary image. The binary image is a cyan component extracted image (2
6), a magenta component extraction image (27), and a yellow component extraction image (28), respectively. The yellow component extraction image (28) to which ID (personal identification) information is supposed to be latently added is shown in FIG. The yellow component extraction image (1
The screen shape is not as shown in 8). Therefore,
ID (personal identification) information cannot be identified from the copy (22), and the owner of the image (14) cannot be identified, so that it is possible to clearly determine that the copy is a counterfeit.

(Embodiment 5) Further, a description will be given of a method of determining forgery of a copy obtained by printing a card (4) containing a face photograph issued by the personal identification information creating apparatus A of the present invention by a general printing method. The printed face of the card (4) with the face photograph issued by the personal identification information creating device A is read by a general color printing method (for example, a color flatbed scanner Topaz of Heidelberg Prepress Co., Ltd.
The scanned image is subjected to RIP processing using a Delta Workstation, and the company's imagesetter HerkulresPro
The film is output with a screen ruling of 150 lines / inch, and the film is printed by general offset plate making and printing.
Then, the ID (personal identification) information reading device B shown in the third embodiment identifies the ID (personal identification) information. The conditions for identification are performed in the same manner as in the third embodiment. First, the background (3) of the face photograph (30) on the reproduction (29)
A part of 1) is read by the flatbed color scanner of the image input section B1 at a reading resolution of 400 per inch.
0 dpi, the read image size is 512 x vertical and horizontal pixels
It is possible to obtain color digital image data (32) consisting of RGB images shown in FIG.

Next, in the image processing section B2, the image density of RGB from the image (32) is shown in FIG. Set a threshold,
The cyan, magenta, and yellow components are extracted as a binary image. The binary image is a cyan component extracted image (3
3), a magenta component extraction image (34), and a yellow component extraction image (35) can be extracted, respectively. The yellow component extraction image (36) to which ID (personal identification) information is supposedly added is shown in FIG. The yellow component extraction image (1
The screen shape is not as shown in 8). Therefore,
ID (personal identification) information cannot be identified from the copy (29), and the owner of the image (14) cannot be identified, so that it is possible to clearly determine that the image is a counterfeit by copying.

[0051]

According to the present invention, in the personal identification information creating apparatus for issuing a printed matter with personal identification pattern information latent added thereto, the screen of the color printed color of the printed matter has a high brightness color in the case of a special color. Also, CMY
In the case of the K print color, a uniform density area is provided in the background portion of the yellow (Y) print screen other than the person, and this portion is normally invisible and has an ID in which an arbitrary encryption definition is added.
(Personal identification) By generating the pattern information in the form of a screen, forgery or falsification can be prevented without depending on the print material such as the printing medium, the printing method, and the ink material.

Further, in the personal identification information reading device for mechanically reading the personal identification pattern information of the printed matter to which the personal identification pattern information has been latently issued by the personal identification information creating device according to the present invention, By providing a machine-reading reference figure (dummy figure) in the personal identification pattern information of the finished printed matter, the machine-reading reference figure (dummy figure) itself has a meaning, and when the personal identification pattern information is machine-read. Since the appropriate cutout size can be obtained at the same time and the head position of the personal identification pattern information can be recognized, the printed matter with the personal identification pattern information latent provision can be machine-read with high accuracy and high speed.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a personal identification information system including a personal identification information creating device A and a personal identification information reading device B of the present invention.

FIG. 2 is a configuration diagram of a card with a face photograph issued by the personal identification information creating apparatus A of the present invention.

FIG. 3 shows the processing operation of the image input unit and the color image creation unit in the personal identification information creation device A of the present invention (after inputting a face photo card into the personal identification information creation device A, an RGB image,
FIG. 7 is a diagram illustrating a CMYK image and a background portion.

FIG. 4 is a CM in the personal identification information creating apparatus A of the present invention.
Among the screen shapes obtained at the image area ratios generated at each density stage of the YK image, highlight (image area ratio 10
FIG. 11 is a diagram showing the shape of a unit print screen generated when gradation information of about (%), intermediate (about 50% image area ratio), and shadow (about 90% image area ratio) is obtained.

FIG. 5 is a diagram illustrating a processing operation of obtaining a latently assigned CMYK image of ID (personal identification) information in the pattern information superimposition creating unit of the personal identification information creating apparatus A of the present invention.

FIG. 6 is a diagram showing a basic unit screen shape of a potential ID pattern applied in the personal identification information creating apparatus A of the present invention.

FIG. 7 is a diagram showing a dummy figure among basic unit screen shapes of a latent ID pattern applied in the personal identification information creating apparatus A of the present invention.

FIG. 8 is a diagram showing color digital image data composed of RGB images obtained from a card with a face photograph issued in the image input section B1 of the personal identification information reading device B of the present invention.

FIG. 9 is a diagram illustrating an example of a configuration of a personal identification information reading apparatus according to the present invention. It is a figure showing the processing operation which extracts.

FIG. 10 shows a screen shape having genuine ID (personal identification) information and a unique unit print screen shape based on ID (personal identification) information latent in the issued face photograph card in the personal identification information reading device B of the present invention. FIG. 8 is a diagram showing a processing operation for comparing and collating with a feature value of the first embodiment.

FIG. 11 is a diagram showing color digital image data composed of RGB images of a copy obtained by copying a card with a face photograph issued by the personal identification information creating apparatus A of the present invention by a copying machine.

FIG. 12 is a diagram showing an example of the personal identification information creating apparatus A according to the present invention. It is a figure showing the processing operation which extracts a yellow component.

FIG. 13 is a diagram showing color digital image data composed of RGB images of a duplicate of a card with a face photograph issued by the personal identification information creating apparatus A of the present invention by a color printing method.

FIG. 14 is a diagram showing an example of a personal identification information creating apparatus A according to the present invention. FIG. 7 is a diagram showing a processing operation for extracting a yellow component.

[Explanation of symbols]

 A personal identification information creation device A1 image input unit A2 color image creation unit A3 ID pattern information creation unit A4 ID pattern superimposition creation unit A5 output unit B personal identification information reading device B1 image input unit B2 image processing unit B3 ID pattern information storage unit B4 ID pattern information identification section B5 display section C Secret data registration section 1 Face photograph 4 Card with face photograph 11 CMYK image with ID information latent

Claims (17)

[Claims] 1. A personal identification information creating apparatus for issuing a print containing ID (personal identification) pattern information in which ID (personal identification) pattern information is implicitly added to a printed matter containing a photograph, the ID (personal identification) information and the printed matter containing a photograph. The gradation information of the photograph is formed on a print screen of one or more high-brightness print colors based on the photograph image of I, and I is separately input from the printed matter or input means on the print screen.
ID (personal identification) pattern information composed of characteristic values of a print screen shape unique to an individual created based on D (personal identification) information is added, and the ID (personal identification) information cannot be identified by normal visual inspection. (Personal identification) A personal identification information creating device that creates and issues printed matter to which pattern information is latently added. 2. An ID assigned to the print screen.
2. The personal identification information creating apparatus according to claim 1, wherein the (personal identification) pattern information has a machine-readable reference figure whose information is invisible and meaningless in the pattern. 3. The method according to claim 2, wherein the reference pattern for machine reading is the ID.
3. The personal identification information creating apparatus according to claim 2, wherein the (personal identification) pattern information indicates the reference reading direction and the head position of the ID (personal identification) pattern information of the printed matter with a photo to which the latent information is given. 4. An image input means for inputting a face photograph (an image unique to an individual) formed on a print medium (or a base material) and decomposing the photograph into one or more digital color image information; 1 for printing screen from digital color image information
A color image creating means for creating digital color printing image information of colors or more; a personal identification information inputting means for inputting personal identification (ID) information formed on a print medium (or a base material);
It creates ID (personal identification) pattern information (corresponding to the area of the print screen by taking into account an arbitrary code) consisting of characteristic values of the print screen shape peculiar to the individual created based on the personal identification information. Personal identification pattern information creating means for registering the personal identification pattern information in the secret data registration unit in correspondence with personal information, and one or more digital color printing plates for a print screen created by the color image creating means The personal identification pattern information created by the individual identification pattern information creating means is superimposed on the printing plate image information having gradation information on the color with high brightness in the image information, and the latent image of the personal identification pattern information is given. Personal identification pattern information superimposing means for producing color printing image information; An output for outputting a printed matter on which a face photograph (an individual-specific image) to which personal identification pattern information that cannot be visually identified is latently assigned is printed based on the digital color printing image information to which personal identification pattern information has been latently added. Means for creating personal identification information. 5. Entering a face photograph (an image unique to an individual) printed on a print medium (or a base material) and G. FIG. B. Image input means for decomposing into digital color image information; G. FIG. B. A color image forming means for forming cyan (C), magenta (M), yellow (Y), and black (K) digital color printing image information for printing from the digital color image information; Personal identification information input means for inputting an ID (personal identification) printed on the material);
It creates personal identification pattern information (corresponding to the area of the print screen, taking into account any encryption) that is based on the characteristic value of the print screen shape unique to the individual created based on the personal identification information, and Personal identification pattern information creating means for registering the personal identification pattern information in the secret data registration unit in association with the information, and C.I. information created by the color image creating means. M. Y. K. The personal identification pattern information created by the individual identification pattern information creating means is superimposed on the printing image information having the gradation information of yellow (Y) of the digital color printing image information, thereby providing the potential of the personal identification pattern information. C. M. Y. K.
A personal identification pattern information superimposing means for creating digital color printing image information; and C.I.
M. Y. K. Output means for outputting a printed matter on which a face photograph (an individual-specific image) latently provided with personal identification pattern information which cannot be visually identified based on digital color printing image information is printed. Personal identification information creation device. 6. The personal identification information creating apparatus according to claim 1, wherein the personal unique image is a face photograph. 7. The color image creating means according to claim 1, wherein M.
Y. K. 3. The personal identification information creating device according to claim 1, wherein the digital color printing image information has no black (K) component. 8. The color image creating means according to claim 1, wherein M.
Y. K. The personal identification information according to claim 12, wherein an image area other than a person in the digital color printing image is a substantially uniform density area (halftone screen image having a printing screen area of about 50%). Creating device. 9. A personal identification information reading device for determining the authenticity of a printed matter containing an image unique to an issued individual, wherein ID (personal identification) information is revealed from image information of the printed matter, and the revealed ID ( An apparatus for reading personal identification information, wherein the authenticity of the printed matter is determined by comparing and comparing personal identification) information with ID (personal identification) information registered or declared in advance. 10. A printed matter (card) on which an image unique to an individual to which the invisible personal identification information is latently added is printed.
Image input means for inputting an image (face photograph) unique to the individual, image processing means for revealing ID (personal identification) information latently given to the printed matter (card), and characteristic values of the print screen shape unique to the individual (Individual identification) pattern information storage means for recording and storing the ID, personalized ID (individual identification) information from the image processing means and the ID (individual identification)
It is characterized by comprising personal information identifying section means for comparing and comparing the characteristic value of the print screen shape peculiar to the individual from the pattern information storing means, and display means for displaying or printing the judgment result by the personal information identifying means. Personal identification information reading device. 11. An image input means comprising an optical input device for inputting a photographic image of a printed matter containing a photo with ID (personal identification) pattern information latently provided, and an image for revealing the ID (personal identification) pattern information. Processing means and ID
ID (personal identification) pattern information storage means for recording and storing ID (personal identification) pattern information composed of characteristic values of a print screen shape unique to an individual in association with (personal identification) information, and ID (personal identification) of the printed matter ID (individual identification) from information or ID (individual identification) information input means provided separately
Based on the information, corresponding ID (personal identification) pattern information is selected from the ID (personal identification) pattern information storage unit, and the selected ID (personal identification) pattern information and the revealed ID (personal identification) pattern information are stored. A) personal information identifying means for comparing and collating with the pattern information; and display means for displaying the result of the judgment by the personal information identifying means. Information reading device. 12. The method according to claim 1, wherein said I is applied on said printing screen.
The personal identification information reading apparatus according to claim 10 or 11, wherein a machine-readable reference figure that is invisible and meaningless in D (personal identification) pattern information is read and identified. 13. A reference reading direction and an ID (personal identification) of the photo-printed material of the machine-readable reference graphic.
12. The personal identification information reading device according to claim 10, wherein the ID (personal identification) pattern information is read quickly and accurately by a function indicating a head position of the pattern information. 14. Color image information for optically decomposing an image (color face photograph) peculiar to an individual in a printed matter to be identified to create each color image information of cyan (C), magenta (M), and yellow (Y). Creating means, color image information extracting means for extracting the yellow (Y) color image information of the color image information creating means, and personalizing the yellow (Y) color image information extracted from the color image information extracting means. ID (personal identification) pattern information separating means for separating unique image (color face photograph) image information and ID (personal identification) pattern information;
ID (personal identification) pattern information converting means for decrypting ID (personal identification) pattern information separated by D (personal identification) pattern information separating means and converting it into numerical or symbolic information, and declared ID (personal identification) ID to enter information
(Personal identification) information input means, ID (personal identification) information input from the ID (personal identification) information input means, and ID (personal identification) information comprising numerical or symbol information converted by the information conversion means. And an ID (personal identification) information comparing and collating means for comparing and collating the information. 15. The image processing apparatus according to claim 14, wherein the color image information creating unit extracts only image information of a background portion on the recording medium (or paper) where no individual-specific image (color face photograph) exists. Described personal identification information reading device. 16. The ID (personal identification) information converting means includes at least an individual pattern information generating means for generating individual pattern information corresponding to each of a plurality of numbers or symbol information inputted from the input means. Composite ID separated by ID (personal identification) pattern information separating means
(Personal identification) Pattern information is divided into a plurality of independent individual IDs.
(Individual identification) pattern information is sequentially decomposed, and the decomposed individual ID (individual identification) pattern information is compared with the individual pattern information in the individual pattern information generating means to perform a composite ID (individual identification) in the identification target print. 15. The personal identification information reading apparatus according to claim 14, wherein the identification information pattern information is decoded as ID (personal identification) information including a plurality of numeral or symbol information. 17. An apparatus for creating personal identification information according to claim 1, 2, 3, 4, 5, 6, 7, or 8, and claim 9.
A personal information identification system comprising the personal identification information reading device described in 10, 11, 12, 13, 14, 15, or 16.