JP2002074367A - Seal verification display device and method and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily confirm the truth or false of a seal impression in the overlapped image of the seal impression collated result. SOLUTION: This device is provided with an input means 2a for inputting the image of a collation mark, storage means 3a for storing the image of a registration mark, an overlapping processing means 13a for overlapping the images of the collation mark and the registration mark, a thinning control means 15a for thinning the images of the collation mark and the registration mark, and a display means 4a for displaying information. Then, by the overlapping processing means 13a, the images of the collation mark and the registration mark are overlapped, and the image overlapping the collation mark and the registration mark thinned by the thinning control means 15a is displayed on the display means 4a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus, a method, and a recording medium for performing a seal verification between a verification seal and a registered seal when a seal is used in a financial institution such as a bank, a government office, a company, or the like. About.

[0002]

2. Description of the Related Art Conventionally, when a seal stamp of a verification mark and a registration mark is performed on a personal computer (PC) screen, a verification mark image and a registration mark image are displayed on the screen, and the two seal image are superimposed. A system for displaying images together has been generally announced (for example, see Japanese Patent Application Laid-Open No. 62-93).
No. 768).

[0003] In such a system, the seal image is displayed on a screen as it is, by changing the color arrangement of a portion that does not match the matching portion with the original image. FIG. 8 is an explanatory diagram of a conventional example. In FIG. 8, the left is a registration mark, the center is a superimposed display, and the right is a collation mark. In the superimposed display at the center, the seal image of the collation mark and the registration mark is displayed as the original image by changing the color scheme of the portion that does not match the matching portion.

[0004]

The above-mentioned prior art has the following problems.

(1): When a superimposed image is created with the original image as it is, if the line segment is thick, there is a problem that it is difficult to determine the slight angle and length of the line segment constituting the seal stamp.

(2) In general, the operator recognizes the characters forming the seal at the time of the seal verification, and determines, for example, "Suzuki" for "Suzuki". As a result, if the characters are the same, the seal verification may not be performed in detail.

SUMMARY OF THE INVENTION It is an object of the present invention to solve such a conventional problem and to make it possible to easily confirm the authenticity of a seal in a superimposed image of the seal verification result.

[0008]

FIG. 1 is a diagram illustrating the principle of the present invention. In FIG. 1, 2a is input means, 3a is storage means,
4a is display means, 13a is overlay processing means, 14a
Is a rotation control means, and 15a is a thinning control means.

The present invention is configured as follows in order to solve the above-mentioned conventional problems.

(1): input means 2a for inputting an image of a verification mark, storage means 3a for storing an image of a registration mark, superposition processing means 13a for superimposing the verification mark and the image of the registration mark, A thinning control unit 15a for thinning the image of the verification mark and the registration mark, and a display unit 4a for displaying information, wherein the image of the verification mark and the image of the registration mark are The superimposed image of the registration mark and the registration mark, which has been superimposed and thinned by the thinning control means 15a, is displayed on the display means 4a.

(2): input means 2a for inputting the image of the verification mark, storage means 3a for storing the image of the registration mark, superposition processing means 13a for superimposing the verification mark and the image of the registration mark, Rotation control means 14a for rotating an image
And a display unit 4a for displaying information. The registration processing unit 13a superimposes the image of the reference mark and the registration mark, and the rotation control unit 14a turns the superimposed image upside down. Display means 4
Display with a.

(Operation) The operation based on the above configuration will be described.

The image of the collation mark input from the input means 2a and the registered image of the registered mark are thinned by the thinning control means 15
The image of the reference mark and the image of the registration mark which are thinned by a are superimposed and displayed. For this reason, it is possible to make it easy to see a slight difference in the angle or length of the line segment, and it is possible to easily confirm the authenticity of the seal.

The registration mark image input from the input means 2a and the registered registration mark image are superimposed by the superimposition processing means 13a. Is displayed on the display means 4a after being rotated so that the superimposed image is upside down. For this reason, by making it difficult to recognize a character, it is possible to delete an existing concept that the character is the same character, and it is possible to perform detailed seal verification.

[0015]

According to the present invention, it is possible to make it easy to see a slight difference in line segments by superimposing and superimposing images of a reference mark and a registration mark for superimposition. In addition, by rotating the superimposed image by approximately 180 ° (rotating the character upside down), it is difficult to recognize the character, so that it is possible to delete the existing concept that the character is the same, and to perform the seal verification in detail. Is what you can do.

(1) Description of the seal stamp collation display device FIG. 2 is an explanatory diagram of the seal stamp collation display device. In FIG. 2, the seal stamp collation display device includes a control unit 1, an image reader 2, a seal stamp search device 3, and a display device 4. Also,
The control unit 1 includes an image reader control unit 11, a seal search control unit 12, a superposition processing unit 13, a rotation control unit 14, a thinning control unit 15, a display control unit 16, and a guidance control unit 1.
7 is provided.

The control section 1 controls the seal stamp collation display processing. The image reader 2 is an image input unit that reads the image of the verification mark. The seal search device 3 searches for a registration mark stored in storage means such as a hard disk, and the registration mark is registered in advance using an image reader or the like. The display device 4 is C
Display means such as RT and liquid crystal.

The image reader control section 11 controls an image reader that reads an image (image) of a collation mark. The seal search control unit 12 controls the search of the seal by the seal search device 3. Superposition processing unit 1
Numeral 3 controls the superposition of the verification mark and the registration mark. The rotation control unit 14 controls the rotation of the image of the seal. The thinning control section 15 controls thinning processing of a seal image. The display control unit 16 controls display of the display device 4. The guidance control unit 17 controls guidance (display of characters) such as name, address, and account number display related to the seal.

(2): Description of the method for superimposing the seals FIG. 3 is an explanatory diagram of the method for superimposing the seals.
3A illustrates the registration mark and the collation mark, FIG. 3B illustrates the center of the seal, FIG. 3C illustrates the coincidence rate, and FIG. 3D illustrates the overlapping position.

In FIG. 3A, a registration mark is shown on the left side, and a collation mark is shown on the right side. The superposition of the registration mark and the verification mark (performed by the superposition processing unit 13) will be described.

First, the registration mark and the collation mark are cut out, and the center of the cut out image becomes the center of the seal. In FIG. 3B, a circumscribed rectangle (a circumscribed rectangle) is provided and cut out for each of the registration mark and the verification mark, and the intersection of the diagonal lines is the center of the seal.

Next, the centers of the registered seal and the reference seal are aligned with each other and are superimposed. The ratio of the overlapping portion of the superimposed images is calculated (calculation of coincidence rate). FIG. 3C shows an image superimposed on the left side. The coincidence rate is calculated by the following equation.

Matching rate = (number of dots of matching portion / number of entire dots) × 1
00% Finally, the rotation control unit 14 rotates the seal around the center of the seal only (or only the registration seal), and calculates the coincidence rate each time. The point where the point with the highest coincidence rate overlaps (overlapping point) (Alignment position). In FIG. 3D, only one of the registration mark and the collation mark is rotated by the rotation control unit 14, and the coincidence rate is calculated each time, and the central image having the highest coincidence rate is located at the position where the images overlap.

(3): Description when performing thinning FIG. 4 is an explanatory diagram when thinning is performed, and FIG. 4 (a) illustrates a registration stamp image and a collation stamp image.
4B illustrates the thinning processing, and FIG. 4C illustrates the superimposition processing.

In FIG. 4A, the registered stamp image is shown on the left, and the collation stamp image is shown on the right. A description will be given of the superposition by thinning the registered mark image and the check mark image.

First, the registered stamp image and the reference stamp image are superimposed (see the right diagram in FIG. 4C), and thinning processing of each image is performed at that position. FIG.
In (b), the left side shows the registered print thinning image after the thinning processing, and the right side shows the collation print thinning image after the thinning processing.

Here, thinning of an image is a process of adjusting contours having irregular thicknesses to lines of the same thickness (usually the width of one pixel). Do with. In other words, the thick outline is cut from the outside, and the processing ends when the thickness of one pixel is reached. There are several methods for such thinning processing of an image depending on the rule of how to cut pixels. One of the methods is the Heydrich method.

Next, the thinned images are superimposed. FIG. 4C shows a superimposed image of the thinned image on the left side. By thinning the image in this way, a slight difference between the line segments constituting the seal and the like can be easily understood. In addition, the superimposed image of the original image (FIG. 4A) is shown on the right side for reference.

(Explanation by Flowchart for Thinning) FIG. 5 is a processing flowchart for thinning. Hereinafter, description will be given according to the processing S1 to S4 of FIG.

S1: The superimposition processing unit 13 superimposes the registered seal image searched by the seal search device 3 and the verification seal image read from the image reader 2 (FIG. 3).
Reference), and then proceeds to processing S2.

S2: The thinning control section 15 thins the registration mark at the superimposed position by the Heydrich method, and proceeds to processing S3.

S3: The thinning control section 15 thins the collation mark at the superimposed position by the Heydrich method, and proceeds to processing S4.

S4: The display controller 16 superimposes and displays the thinned seal on the display device 4.

The processes S2 and S3 can be performed before or simultaneously with the process S3.

(4): Description when rotating a seal stamp FIG. 6 is an explanatory diagram when rotating a seal stamp, and FIG.
Fig. 6 (b) is a description of the registration mark image and the collation mark image.
Fig. 6 (c) is a description of a normal display, and Fig. 6 (c) is a description of a 180 ° rotation display.

In FIG. 6A, a registration mark image is shown on the left side, and a collation mark image is shown on the right side.

In FIG. 6B, the left is a registration mark, the center is a superimposed display, and the right is a collation mark. In the superimposed display at the center, the seal image of the verification mark and the registration mark is the original image, but the display is performed by changing the color scheme of the part that does not match the matching part.

In FIG. 6C, the registration mark of FIG.
° Rotated display. In this way, by rotating the seal 180 °, it is difficult to recognize the character of the seal as a “character”, so that in this example, the established concept of the name “Suzuki” can be eliminated and collation can be performed.
Note that the rotation of the seal is not 180 °, but a rotation (180 °) that makes it difficult to recognize the characters of the seal as “characters”.
Should be performed.)

(Explanation by Flowchart for Performing Rotation) FIG. 7 is a processing flowchart for performing rotation. Hereinafter, description will be made in accordance with the processes S11 to S14 of FIG.

S11: The registration processing unit 13 determines whether the registered seal image searched by the seal search device 3 and the image reader 2
Then, a superimposition process (see FIG. 3) with the collation mark image read from is performed, and the process proceeds to S12.

S12: The display control unit 16 displays the seal image of the verification mark and the registration mark and superimposes the display (FIG. 6B).
Reference), and then proceeds to processing S13.

S13: The superposition processing unit 13
° It is determined whether a rotation button (not shown) has been pressed. If it is determined that the 180 ° rotation button has been pressed, the process proceeds to step S14. If the button has not been pressed, normal display (see FIG. 6B) is continued.

S14: The rotation control unit 14 rotates the verification mark, the registration mark, and the superimposed image by 180 °, and displays the image rotated by 180 ° by the display control unit 16 (FIG. 6).
(See (c)).

As described above, by rotating the superimposed image by 180 ° by the key operation of the operator or the like,
It is possible to easily confirm the authenticity of the seal by eliminating the existing concept.

(5): Description of program installation Image reader control unit 11, seal search control unit 12, superposition processing unit 13, superposition processing unit 13a, rotation control unit 14, rotation control unit 14a, thinning control unit 15, the thinning control unit 15a, the display control unit 16, the guidance control unit 17 and the like can be configured by a program, and the main control unit (CP
U) is executed and stored in the main memory. This program is generally processed by a computer. This computer is configured by hardware such as a main control unit, a main memory, a file device, a display device, and an input device such as an image reader and a keyboard.

The program of the present invention is installed on this computer. This installation is performed on portable recording (storage) media such as floppy disks, magneto-optical disks, etc.
These programs are stored and installed in a file device provided in the computer via a drive device for accessing a recording medium provided in the computer or via a network such as a LAN. You. Then, program steps necessary for processing are read out from the file device to the main memory, and are executed by the main control unit.

[0047]

As described above, the present invention has the following effects.

(1): For thinning the image of the reference mark input from the input means and the registered image of the registered mark, and superimposing and displaying the thinned reference mark and the image of the registered mark. In addition, it is possible to make it easy to see a slight difference in the angle or length of the line segment, and it is possible to easily confirm the authenticity of the seal.

(2): The image of the reference mark input from the input means is superimposed on the registered image of the registered mark, and the superimposed image of the registered reference mark and the registered mark is superimposed. Since the characters are rotated and displayed upside down, it is difficult to recognize the characters, so that it is possible to delete the existing concept that the characters are the same, and to perform the seal verification in detail.

(3): superposition processing means for superimposing the image of the reference mark and the registration mark; thinning control means for thinning the respective images of the verification mark and the registration mark at the superposition position; As a display means for displaying a superimposed image of the thinned reference mark and the registration mark, a computer-readable recording medium in which a program for causing a computer to function is recorded. By installing, it is possible to easily provide a seal stamp collation display device that can easily confirm the authenticity of the seal stamp.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an explanatory diagram of a seal stamp collation display device according to the embodiment.

FIG. 3 is an explanatory diagram of a method of superimposing a seal in an embodiment.

FIG. 4 is an explanatory diagram when thinning is performed in the embodiment.

FIG. 5 is a processing flowchart when thinning is performed in the embodiment.

FIG. 6 is an explanatory diagram in a case where a seal is rotated in the embodiment.

FIG. 7 is a processing flowchart when rotation is performed in the embodiment.

FIG. 8 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 2a input means 3a storage means 4a display means 13a overlay processing means 14a rotation control means 15a thinning control means

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Eiichi Watanabe 4-1-1, Kamidadanaka, Nakahara-ku, Kawasaki-shi, Kanagawa F-term in Fujitsu Limited (Reference) 5B043 BA09 EA01 GA07 HA02 HA06 HA07 5B055 HB05 PA21

Claims (5)

[Claims] An input unit for inputting an image of a verification mark; a storage unit for storing an image of a registration mark; superposition processing means for superimposing the verification mark and the image of the registration mark; A thinning control unit for thinning the image of the registration mark; and a display unit for displaying information. The thinning control unit superimposes the verification mark and the image of the registration mark by the superposition processing unit. A superimposed image of the verification mark and the registration mark, which has been thinned in the above, is displayed on the display means. 2. An input means for inputting an image of a verification mark, a storage means for storing an image of a registration mark, a superposition processing means for superimposing the image of the verification mark and the image of the registration mark, and rotating the image. A rotation control unit; and a display unit for displaying information. The registration processing unit superimposes the image of the reference mark and the registration mark, and the rotation control unit turns the superimposed image upside down. The seal stamp collation display device characterized in that it is rotated and displayed on the display means. 3. An image of the reference mark input from the input means and a registered image of the registered mark are thinned, and the thinned reference mark and the image of the registered mark are superimposed and displayed. Seal verification display method. 4. An image of a collation mark input from an input means and a registered image of a registration mark are superimposed, and the superimposed image of the collation mark and the registration mark is superimposed vertically. A seal verification display method characterized in that the display is rotated and displayed in reverse. 5. A superimposition processing means for superimposing an image of a collation mark and a registration mark; a thinning control means for thinning each image of the collation mark and the registration mark at the superimposition position; A computer-readable recording medium storing a program for causing a computer to function as display means for displaying a superimposed image of the verification mark and the registration mark.