JP2012118729A - Seal impression collation device, seal impression collation method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal impression collation device, a seal impression collation method, and a program capable of performing quick and precise seal impression collation.SOLUTION: Identification data combining outer circumferential frame data and seal impression feature data are registered to a seal impression server in association with a customer number and the like. When performing collation, data corresponding to a registered seal which is registered in association with a customer number of a customer who has requested collation are read from the seal impression server. Then the identification data of the registered seal registered in association with the customer number are adjusted so that angles match those of seal impression data of collation seal and a comparison is made between them. It is determined whether or not the identification data whose angles are adjusted match the seal impression data of the collation seal and, when they match, it is determined that the registered seal and the collation seal are identical.

Description

  The present invention relates to a seal verification device, a seal verification method, and a program.

  In a financial institution or the like, a seal slip notified by a customer is registered and managed as image data for each customer number or account number. For example, when a customer receives an application for a change of address or a surname from a customer, the financial institution verifies the identity by verifying whether the seal that the customer brought matches any of the registered seals. do.

  The seal verification method includes, for example, the seal outer shape information, the coordinates of the intersection between the outer periphery component and the character component, the coordinates of the intersection of the character components, the straight line drawn along the character component from the end point of the character component, and the like. There is a method of extracting and registering feature point information such as the coordinates of the intersection with the character component of the character component, and performing collation using the extracted peripheral shape information and feature point information and registered information in the same manner ( For example, see Patent Document 1). In addition, there is an example in which a seal stamp is registered in a seal stamp server, and an operator selects a seal stamp to be used for verification beforehand from the registered seal stamp (for example, see Patent Document 2).

  As an example of recognizing images such as characters, the image to be recognized is divided into regions by concentric circles, the features of the image to be recognized are defined as a collection of partial images in each divided region, and the image is recognized using the defined features. An apparatus is also disclosed (for example, see Patent Document 3).

Japanese Patent Laid-Open No. 10-105703 JP 2002-245460 A JP-A-11-296677

  The seal verification as described above must be performed quickly and accurately. However, when displaying image data of a registered seal slip on a screen or the like so that a staff member such as a financial institution verifies the seal, first, a customer number or an account number is input. Then, the image data of the seal stamp registered in association with the input number is displayed and collated with the seal impression of the seal stamp brought by the customer. If the seals are different, an account number other than the input number, for example, an account number of an ordinary deposit is further input, and the corresponding image data and the seal stamp of the seal brought by the customer are collated. As described above, when verifying the identity of a customer, it may be necessary to collate a registered seal with a stamp that has been registered several times. Further, when there are a plurality of notification stamps for one customer as described above, there is also a problem that it takes time for collation if the collation operation of the seal stamp has to be performed several times.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a seal stamp verification apparatus and a seal stamp verification method capable of quickly and accurately performing seal stamp verification even when there are a plurality of registered marks.

  The seal collation device according to the present invention reads a seal in a seal frame and acquires seal data based on the seal, and based on the seal data acquired by the reader, the seal and the seal frame The two seals are the same based on whether or not the seal feature extraction unit that extracts the seal feature data indicating the intersection with the reference graphic having an arbitrary shape matches the data based on the seal impressions of the two seals. A collation unit for determining whether or not the first seal is based on the seal feature data based on the seal of the first seal and the seal data based on the seal of the second seal It is characterized in that it is determined whether or not one seal stamp and the second seal stamp are the same.

  Further, the seal collation method according to the present invention includes a reading step of reading a seal imprint in a seal frame and acquiring seal stamp data based on the seal impression, the seal stamp and the seal frame based on the seal stamp data acquired by the reader The two seals are the same based on whether or not the seal feature extraction process for extracting seal feature data indicating the intersection with the reference graphic, which is an arbitrary graphic, and whether the data based on the seal impressions of the two seals match. A verification step for determining whether or not the seal stamp is based on the seal feature data based on the seal stamp of the first seal and the seal stamp data based on the seal stamp of the second seal in the verification step. It is characterized in that it is determined whether or not the first seal stamp and the second seal stamp are the same.

  In addition, even if it is a program for making a computer perform the seal stamp collation method mentioned above, since the same operation and effect as the seal stamp collation method mentioned above are show | played by making this computer run by the said computer, the subject mentioned above is carried out. Solved.

  According to the seal collation apparatus, the seal collation method, and the program according to the present invention, it is possible to perform seal collation quickly and accurately.

It is a figure which shows the structure of the seal | sticker collation apparatus by one embodiment of this invention. It is a block diagram which shows the function of the seal registration of the seal collation apparatus by one embodiment of this invention. It is a block diagram which shows the function of the stamp collation of the stamp collation apparatus by one embodiment of this invention. It is a flowchart which shows the operation | movement of the seal registration process by one embodiment of this invention. It is a figure which shows an example of the input screen by one embodiment of this invention. It is a flowchart which shows the operation | movement which extracts the outer periphery frame data and seal | sticker characteristic data by one embodiment of this invention. It is a flowchart which shows the detailed operation | movement of the extraction method of the outer periphery frame data by one embodiment of this invention. It is explanatory drawing of the extraction method of the outer periphery frame data by one embodiment of this invention. It is a flowchart which shows the detail of the extraction method of the seal stamp characteristic data by one embodiment of this invention. It is a conceptual diagram explaining the extraction method of the seal stamp characteristic data by one embodiment of this invention. It is a conceptual diagram explaining the extraction method of the seal stamp characteristic data by one embodiment of this invention. It is a conceptual diagram explaining the extraction method of the seal stamp characteristic data by one embodiment of this invention. It is a conceptual diagram explaining the extraction method of the seal stamp characteristic data by one embodiment of this invention. It is a conceptual diagram explaining the extraction method of the seal stamp characteristic data by one embodiment of this invention. It is a flowchart explaining the operation | movement of the stamp collation by one embodiment of this invention. It is a flowchart which shows the reading operation | movement of the imprint data of a collation mark by one embodiment of this invention. It is a figure explaining the process at the time of the seal stamp data reading of the collation mark by one embodiment of this invention. It is a flowchart which shows the detailed operation | movement of the stamp collation by one embodiment of this invention. It is a flowchart showing the detail of collation operation | movement with the identification data of a registration mark and the seal impression data of a collation mark by one embodiment of this invention. It is a figure explaining the operation | movement of the angle rotation process of the seal stamp data by one embodiment of this invention, (a) is a figure shown about the stamp of a registration mark, (b) is a figure shown about the seal of a collation mark. . It is a flowchart which shows the detail of the display operation | movement of the similar imprint data by one embodiment of this invention. It is a figure which shows the example of a display of the result by one embodiment of this invention.

  Hereinafter, a stamp verification apparatus, a stamp verification method, and a program according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a description will be given by taking an example of a seal verification of a financial institution. FIG. 1 is a diagram showing a configuration of a seal collation apparatus according to an embodiment of the present invention, FIG. 2 is a block diagram showing a seal registration function of the seal collation apparatus according to the present embodiment, and FIG. It is a block diagram which shows the function of the stamp collation of the stamp collation apparatus by a form.

  As shown in FIG. 1, a seal stamp verification apparatus 1 according to the present embodiment includes a seal stamp verification terminal 3 and a seal stamp server 15 connected to the stamp verification terminal 3 via a wired or wireless network. A scanner 5, a display 7, a keyboard 9, a mouse device 11, and the like are connected to the seal collation terminal 3. The seal server 15 has a database 17.

  The seal verification terminal 3 is an arithmetic processing device having functions of seal registration and seal verification, and is, for example, a general-purpose computer. The scanner 5 is a reading device for taking a seal stamp image as image data. The display 7 is a display device that displays the read imprint, the imprint stored in the database 17, the customer number associated with the imprint, and the matching result. The keyboard 9 is an input device for inputting characters. The mouse device 11 is a pointing device used for operating a pointer or an icon displayed on the display 7. The seal stamp server 15 is a computer for receiving the seal stamp read by the seal stamp matching terminal 3 and data extracted based on the seal stamp from the seal stamp matching terminal 3 and storing them in the database 17. The database 17 is a storage device that is controlled by the seal stamp server 15 and stores data transmitted from the seal stamp matching terminal 3.

  The seal collation terminal 3 has functions of a seal registration unit 3A that performs seal registration and a seal collation unit 3B that collates the brought seal and the registered seal. As illustrated in FIG. 2, the seal registration unit 3 </ b> A has functions such as a reading unit 21, a reading result display unit 23, a registration data editing unit 25, and a registration unit 27. The reading unit 21 acquires image data of a registration imprint read by the scanner 5. The reading result display unit 23 sends the data acquired by the reading unit 21 to the display 7, and the display 7 performs display using the data from the reading result display unit 23. The registration data editing unit 25 performs calculations based on the data acquired by the reading unit 21, edits the image data, and creates data to be registered in the seal stamp server 15. The registration unit 27 transmits the data created by the registration data editing unit 25 to the seal server 15 and registers it in association with identification information such as a customer number input from the keyboard 9 of FIG.

  As shown in FIG. 3, the seal collation unit 3B has functions such as a reading unit 31, a read data editing unit 33, a search unit 35, a collation processing unit 37, and a collation result processing unit 39. The reading unit 31 acquires the image data of the verification impression read from the scanner 5. The read data editing unit 33 performs an operation based on the data acquired by the reading unit 31 and edits the image data. The search unit 35 acquires data related to the seal impression from the database 17 of the seal stamp server 15 based on the customer number to be searched and the data edited by the read data editing unit 33. The collation processing unit 39 collates the seal image acquired by the reading unit 31 with the data related to the seal image acquired from the seal stamp server 15. The collation result processing unit 39 displays the collation result on the display 7.

  Next, with reference to FIG. 4, a seal registration process by the seal collation apparatus 1 according to the present embodiment will be described. FIG. 4 is a flowchart showing an operation of the seal registration process by the seal collation apparatus 1. First, seal registration is accepted (S101). For example, as shown in FIG. 5, for example, a customer number (CIF: Customer's Information Files) is input into an input frame 44 in the display frame 40 displayed on the display unit 41 of the display 7. Subsequently, the scanner 5 reads the seal stamp on which the seal of the registration mark is written, and the reading unit 21 acquires the image data of the seal slip (S102). When the seal slip is read, identification information corresponding to the seal, such as a store number that is a branch number, a subject that is the type of account, and an account number of the account, is input using the keyboard 9 or the like. Further, the image data corresponding to the seal frame with the seal stamp and the signature frame with the signature are cut out and registered in association with the customer number (CIF) and the account number (S103). At this time, for example, as shown in FIG. 5, an image 50 including a seal stamp 48 inside the seal frame 46 is displayed on the display unit 41. Similarly, when there are a plurality of registration marks, registration is performed in association with the customer number (CIF) and the account number.

  Subsequently, outer frame data and seal feature data are created from the registered data (S104). Details of S104 will be described later. The created outer frame data and seal feature data are registered in the seal server 15 in association with data corresponding to the seal frame and signature frame (S105). Hereinafter, data corresponding to the seal frame is referred to as seal impression data, and data obtained by combining the outer frame data and the seal feature data is referred to as identification data.

  Next, with reference to FIGS. 6 to 14, the details of the operation of creating the outer frame data and the seal feature data in S104 of FIG. 4 will be described. FIG. 6 is a flowchart showing the subroutine of S104 in FIG. 4 and the operation for extracting the outer frame data and the seal feature data. FIG. 7 is a subroutine of S110 in FIG. 6 and shows a detailed operation of the outer frame data extraction method. FIG. 8 is an explanatory diagram of the outer frame data extraction method.

  First, as shown in FIG. 6, the outer peripheral frame of the registered seal impression data is extracted (S110). Hereinafter, for example, the image data corresponding to the seal stamp frame 46 including the seal 48 shown in FIG. 5 is referred to as the stamp data 48, and similarly, the same reference number is used for the image and the image data corresponding to the image. As shown in FIG. 7 and FIG. 8, the registration data editing unit 25 first searches from the upper left of the bitmap of the imprint data 48 dot by dot as indicated by the arrow 53, and detects “black” dots (FIG. 7). , S115). When the registered data editing unit 25 detects a “black” dot, the registration data editing unit 25 sequentially performs the same search from the left of the next stage and extracts the outer frame 52 of FIG. 8. Next, the same processing is performed from the upper right as shown by the arrow 55 (FIG. 7, S116), and the outer frame 54 is similarly extracted. The registered data editing unit 25 combines the outer frame 52 and the outer frame 54 to form an outer peripheral frame 56. A set of “black” pixels corresponding to the outer peripheral frame 56 is extracted as the outer peripheral frame data 56 (S117). The outer peripheral frame data 56 is data indicating the shape of the outer peripheral frame of the stamp 48.

  Returning to the processing of FIG. 6, the seal stamp feature data is extracted from the seal stamp data registered in S111. Here, the details of the method for extracting seal feature data will be described with reference to FIGS. 9 to 14. FIG. 9 is a subroutine of S111 in FIG. 6 and is a flowchart showing the details of the seal feature data extraction method. FIGS. 10 to 14 are conceptual diagrams for explaining the seal feature data extraction method. In the present invention, the seal stamp characteristic data is image data of an intersection of the seal stamp data and an arbitrary figure in the seal stamp frame corresponding to the seal stamp data. In the present embodiment, a square is taken as an example of an arbitrary figure.

  As shown in FIG. 9, first, the center point of the imprint 48 in the registered imprint data 48 is obtained (S121). At this time, for example, a minimum rectangle including the imprint 48 in the imprint data 48 is obtained, and an intersection of two pairs of diagonal lines of the rectangle is set as a center point. Next, the shortest distance from the center point to the outer peripheral frame is extracted (S122). For example, as shown in FIG. 10, when the outer peripheral frame of the imprint 48 is obtained as the outer peripheral frame 56, the length of the shortest line segment 60 from the center point 58 to the outer peripheral frame 56 obtained in S 121 is set to the shortest distance 61. And Next, as shown in FIG. 11, a midpoint 63 of the line segment 60 is obtained (S123). Then, a distance m from the center point 58 to the middle point 63 is obtained (S124). As shown in FIG. 12, a square 65 that connects the points PQRS passing through the midpoint 63 and having a side parallel to the line segment 60 and having a length of 2 m on each side is used as a reference graphic for extracting seal feature data. Extract (S125). When the square 65 and the imprint 48 are overlapped, the image data of the overlapping portion is extracted as seal feature data of the imprint 48 (S126). The seal stamp feature data 65 shown in FIG. 13 shows the seal stamp feature data.

  Returning to the processing of FIG. 6, in S112, as shown in FIG. 14, the outer peripheral frame data 56 and the seal feature data 65 are added as the identification data 70 based on the seal impression 48. Further, returning to the processing of FIG. 4, in S105, the registration unit 27 determines the identification information determined according to the customer, such as a customer number, and in some cases, the account type and the account number, and the seal frame, signature The data corresponding to the frame and the identification data 70 are stored in the seal server 15 in association with each other. With the above processing, the registration process of the seal impression 48 is completed.

  Next, the seal verification operation according to the present embodiment will be described with reference to FIGS. 15 to 22. FIG. 15 is a flowchart for explaining the seal collation operation according to this embodiment. As shown in FIG. 15, a case is considered where an application such as an address change or a change of family name is accepted from a customer (S201). First, a customer number (CIF) is input to the input frame 44 by the keyboard 9 on the screen displayed on the display 7 such as the display frame 40 of FIG. 5 (S202). The scanner 5 reads an image including an imprint of an application form or the like with a verification mark, and the reading unit 31 acquires imprint data of the read imprint (S203). Details of the processing of S203 will be described later.

  Further, collation between the seal stamp imprint data and the registered seal identification data registered in association with the inputted customer number (CIF) is performed (S204). As a result of the collation, the imprint data of the registration mark determined to be similar to the collation mark is displayed on the screen (S205). Details of the operations of S204 and S205 will be described later.

  Here, the details of the imprint data reading process of the collation mark in S203 will be described with reference to FIGS. FIG. 16 is a flowchart showing the reading operation of the seal stamp imprint data, and FIG. 17 is a diagram for explaining processing at the time of reading the seal stamp imprint data. As shown in FIG. 16, the reading unit 31 first captures the image 220 of the seal frame 46 including the check mark 148 of the verification mark in the form placed on the scanner 5 (S210). As shown in FIG. 17, the image 220 includes a seal imprint 148, a part of a character string 217 of “delivery seal”, a dotted line 219 indicating a seal stamp location, and a ruled line 221 in the seal frame 46. It is. First, the read data editing unit 33 detects the ruled line component 221 below the image 220 captured by the reading unit 31 (S211), and sets the ruled line deleted image 225 (S212). The read data editing unit 33 further detects a minute size image surrounded by, for example, a rectangle 218 having a predetermined size or less, deletes the character string 217 and the dotted line 219 (S213), and extracts an image 229 of only the imprint 148, Read as imprint data. Here, it is assumed that the image data corresponding to the image 229 is imprint data 148.

  Returning to S204 of FIG. 15, the seal stamp data of the verification mark and the identification data of the registration mark are verified. FIG. 18 is a flowchart showing details of the operation of S204. As shown in FIG. 18, in S231, the search unit 35 matches the identification data including the peripheral frame data of the registration mark and the seal feature data stored in association with the customer number input in S202 of FIG. The seal data is collated (S231).

  FIG. 19 is a flowchart showing details of the operation of S231, and FIG. 20 is a diagram for explaining the operation of the angle rotation processing of the seal impression data. As shown in FIG. 19, first, the collation processing unit 37 reads out, for example, imprint data 230 of a registration mark stored in association with the customer number input in S202 of FIG. 15 (S241). The collation processing unit 37 performs thinning processing in which the read imprint data 230 of the registration mark and the imprint data 148 of the collation mark represented by, for example, a center line, respectively, to obtain imprint data 250 and imprint data 262 (S242). The collation processing unit 37 creates a graph 252 and a graph 264 by performing Hough transform on each of the thinned images. A shift in the horizontal axis direction from the graphic 254 on the graph 252 and the graphic 266 on the graph 264 is detected, and the shift 256 is shifted in the horizontal axis direction to obtain a graph 256 showing the graphic 255. In this way, the angle difference between the imprint data of the registration mark and the imprint data of the verification mark is detected (S243), and the detected angle difference and the imprint data of the registration mark are rotated to obtain the imprint data 258 whose angle has been corrected (S245). . At the same time, identification data of the registered mark that matches the impression of the check mark is obtained, and the identification data that matches this angle and the check mark data 148 of the check mark are checked (S246).

  Returning to the processing of FIG. 18, if it is determined that the identification data of the registration mark matches the corresponding portion of the imprint data of the verification mark (S231, Yes), the registration mark and the verification mark are similar. If it is determined that the registration mark has been registered, the imprint data of the similar registration mark is extracted and displayed on the screen (S232). Note that two image data “match” means that when the pixels of the same coordinate are compared in the bitmap of the image data to be collated, whether the pixels are “black” or not. It means that the ratio is over a predetermined ratio. Details of the processing of S232 in FIG. 18 will be described with reference to FIGS. FIG. 21 is a flowchart showing details of the similar imprint data display operation, and FIG. 22 is a diagram showing a result display example. As shown in FIG. 21, first, the collation result processing unit 39 acquires the imprint data for which the angle of the registered seal that has been determined to be similar has been adjusted and the imprint data of the collation mark (S270). The collation result processing unit 39 adjusts the acquired registration mark and imprint data of the collation mark vertically (S271) and left and right (S272), and displays them in an overlapping manner (S273). At this time, for example, as shown in FIG. 22, the display unit 275 of the display 7 includes a seal frame 46 and a seal stamp 148 of a verification seal, a seal frame 46 and a seal stamp 258 of a registration seal, a seal frame 46, a seal stamp 258 and a seal stamp 148. The overlapping marks 280 that are overlapped by adjusting the position are displayed side by side.

  In S231 of FIG. 18, it may be determined that the registration mark identification data is not similar to the check mark imprint data. In this case, it is determined whether there is another seal registered in association with the customer number input in S202 of FIG. 15 (S233). If there is, the process returns to S231. If there is no other registered seal (S233, No), the seal verification process is terminated. In this case, you may make it display on a display that a customer's identity cannot be confirmed with a collation mark.

  As described above, according to the seal collation apparatus 1 according to the present embodiment, the seal data of the registered seal and the identification data obtained by combining the outer frame data and the seal feature data are stored in the seal stamp server 15 in association with the customer number and the like. sign up. When collating, the registration mark registered in association with the customer number of the customer who requested collation is performed. First, the identification data of the registration mark registered in association with the customer number is adjusted so as to have an angle with the imprint data of the verification mark and compared. It is determined whether or not the angle-adjusted identification data matches the corresponding portion of the seal impression data of the verification mark. If they match, it is determined that the registration mark and the verification mark are the same. In addition, the imprint data of the registration mark whose angle has been adjusted and the imprint data of the verification mark are displayed in a superimposed manner. If it is determined that they do not match, the same determination is performed for other registration marks registered in association with the same customer number. If there is no other registration mark, the process ends.

  In the present embodiment, the reading units 21 and 31 are examples of the reading unit of the present invention. The registered data editing unit 25 is an example of an outer frame extraction unit and a seal feature extraction unit, the verification processing unit 37 is an example of a verification unit and an input unit, and the seal server 15 is an example of a storage unit. The search unit 35 is an example of a search unit.

  As described above, according to the seal stamp collating apparatus 1 according to the embodiment of the present invention, the outer peripheral frame data 56 and the stamp feature data 65 of the registered stamp, and the identification data 70 that combines them can be automatically extracted. it can. Further, by using the identification data 70, it is possible to quickly and accurately detect a similar stamp to a collation stamp from a seal registered in association with a customer number. At this time, it is only necessary to acquire seal stamp data for the verification mark. At the time of determination, it is only necessary to compare the registration mark identification data 70 and the pixels of the same coordinate portion as the verification mark imprint data identification data 70. According to the seal collation apparatus 1 according to the present embodiment as described above, for example, a time reduction of 20% is achieved as compared with the collation method for collating each pixel of the entire entire seal image data. Thereby, the waiting time of a customer such as a financial institution can be reduced, and it becomes possible to contribute to improvement of service.

  The present invention is not limited to the embodiments described above, and various configurations or embodiments can be adopted without departing from the gist of the present invention. For example, in the above-described embodiment, the registration mark is limited to the verification for the registration mark registered in association with the customer number, but is not limited to this. The present invention can also be applied to a case where collation is performed for a larger number of registration marks.

  It is also possible to first determine either the outer frame data or the seal feature data, and determine the other data for those determined to match. In this case, the registration unit 27 of the seal registration unit 3A registers the outer frame data 56 and the seal feature data 65 in association with the customer number. For example, when the outer peripheral frame data is determined first, in the seal collation unit 3B, the read data editing unit automatically extracts the outer frame data from the imprint data of the read collation mark. At this time, the outer peripheral frame data of the verification mark can be extracted using the same process as in FIG. 7 described in the seal registration process operation. The search unit 35 transmits the customer number related to the verification mark and the extracted outer frame data of the verification mark to the seal stamp server 15. The seal stamp server 15 searches the outer frame data of the registered stamp registered in association with the customer number related to the verification stamp, and performs discrimination. If they match, the seal stamp feature data is further searched for discrimination.

  After discriminating the peripheral frame data and / or seal feature data and limiting the number of registered stamps, the conventional discriminating method for calculating the matching ratio of all dots, visual discrimination by displaying overlay marks, etc. You may make it share.

  The method for displaying the collation result has been described with respect to the example in which only the seal imprint that has been determined to be a similar mark is displayed, but is not limited thereto. For example, a method of displaying a plurality of registered seal imprints that are determined to match only the outer frame data, or a determination of outer frame data or seal feature data, and a registration mark that is determined to match at that time Other forms are also possible, such as a method of displaying the imprints of the verification marks in an overlapping manner.

DESCRIPTION OF SYMBOLS 1 Seal verification apparatus 3 Seal verification terminal 3A Seal registration part 3B Seal verification part 5 Scanner 7 Display 9 Keyboard 11 Mouse apparatus 13 Network 15 Seal server 17 Database 21, 31 Reading part 23 Reading result display part 25 Registration data edit part 27 Registration part 33 Reading Data Editing Unit 35 Searching Unit 37 Collation Processing Unit 39 Collation Result Processing Unit

Claims (16)

A reading unit that reads an imprint in a seal frame and obtains imprint data based on the imprint;
Based on the seal data acquired by the reading unit, a seal feature extraction unit that extracts seal feature data indicating an intersection of the seal and a reference graphic having an arbitrary shape in the seal frame;
A collation unit for determining whether the two seals are the same based on whether the data based on the seals of the two seals match,
Have
The collation unit
It is determined whether or not the first seal stamp and the second seal stamp are the same based on the seal feature data based on the seal stamp of the first seal and the seal stamp data based on the seal stamp of the second seal To
A seal verification device characterized by that. An outer peripheral frame extraction unit that extracts outer frame data indicating the outer shape of the impression based on the imprint data acquired by the reading unit;
The collation unit
In addition to the seal feature data, the first seal and the second seal are the same based on the outer frame data based on the seal of the first seal and the seal data based on the seal of the second seal To determine whether it is a thing,
A seal verification device characterized by that.   The seal stamp verification apparatus according to claim 1, wherein the reference graphic is a graphic determined independently of the shape of the seal impression.   4. The seal collation apparatus according to claim 2, wherein the outer peripheral frame data is a set of pixels located at an outermost edge of an imprint in the seal frame. 5. The outer peripheral frame extraction unit extracts first outer peripheral frame data based on the imprint of the first seal and second outer peripheral frame data based on the imprint of the second seal,
When the collation unit determines that the first outer frame data and the second outer frame data match, the first seal feature data based on the first seal and the imprint of the second seal Determining whether or not the first seal and the second seal are the same based on the data;
The stamp verification apparatus according to any one of claims 1 to 4, wherein An input unit for inputting identification information for identifying the seal;
A storage unit for storing data based on the seal stamp of the seal in association with the identification information;
A search unit that reads out the data stored in association with the identification information input to the input unit;
Further comprising
The storage unit stores the first seal feature data in association with at least the identification information,
When the identification information is input to the input unit, the search unit reads the first seal feature data based on at least the seal of the first seal stored in association with the identification information,
The collation unit is configured such that the first seal stamp and the second seal stamp are the same based on at least the first seal feature data read by the search unit and the seal image data of the second seal. To determine whether it is a thing,
The seal stamp collation apparatus according to any one of claims 1 to 5, wherein: The storage unit stores first outer peripheral frame data based on the seal of the first seal in association with the identification information in addition to the seal feature data,
When the identification information is input to the input unit, the search unit adds the first seal feature data based on the seal of the first seal stored in association with the identification information. Read the first outer frame data based on the seal stamp,
The collation unit is based on the first seal feature data read by the search unit and the first outer frame data based on the seal of the first seal and the seal data of the second seal. Determining whether the first seal and the second seal are the same;
The seal collation apparatus according to any one of claims 1 to 6, wherein: The storage unit stores third seal feature data based on the seal of the third seal in association with the identification information,
When the identification information is input to the input unit, the search unit reads at least the third seal feature data,
The collation unit is configured such that the third seal and the second seal are the same based on at least the third seal feature data read by the search unit and the seal data of the second seal. To determine whether it is a thing,
The seal collation apparatus according to any one of claims 6 to 7, wherein When the collation unit determines that the first outer frame data and the second outer frame data do not match, the search unit uses a third seal based on the third seal associated with the identification information. Read the outer frame data,
The said collation part discriminate | determines whether the said 3rd outer periphery frame data and the said 2nd outer periphery frame data correspond, The any one of Claims 7-8 characterized by the above-mentioned. Seal verification device. A display unit for displaying a collation result of the collation unit;
The said display part displays each imprint data based on the imprint of the two seal stamps discriminate | determined that the said collation part is the same, It displays as described in any one of Claims 1-9 characterized by the above-mentioned. Seal verification device.   The said display part displays each imprint data based on the imprint of the seal stamp corresponding to the two outer periphery frame data which discriminate | determined that the said collation part is the same, It is displayed, Claim 5, The seal collation apparatus as described in any one of Claims 9. A reading step of reading an imprint in a seal frame and acquiring imprint data based on the imprint;
Based on the seal data acquired by the reading unit, a seal feature extraction step of extracting seal feature data indicating an intersection of the seal and a reference graphic that is an arbitrary graphic in the seal frame;
A collation step of determining whether or not the two seal stamps are the same based on whether or not the data based on the seal impressions of the two seal stamps match,
Have
In the matching step,
It is determined whether or not the first seal stamp and the second seal stamp are the same based on the seal feature data based on the seal stamp of the first seal and the seal stamp data based on the seal stamp of the second seal To
A seal collation method characterized by the above. An outer peripheral frame extraction step of extracting outer peripheral frame data indicating the outer shape of the imprint based on the imprint data acquired by the reading unit;
In the matching step,
In addition to the seal feature data, the first seal and the second seal are the same based on the outer frame data based on the seal of the first seal and the seal data based on the seal of the second seal To determine whether it is a thing,
A seal collation method characterized by the above. In the outer frame extraction step, first outer frame data based on the seal of the first seal and second outer frame data based on the seal of the second seal are extracted,
If it is determined in the checking step that the first outer frame data and the second outer frame data match, the first seal feature data based on the first seal and the imprint of the second seal Determining whether or not the first seal and the second seal are the same based on the data;
The seal stamp collation method according to claim 12 or claim 13, characterized in that: An input process for inputting identification information for identifying the seal;
A storage step of storing data based on the seal of the seal in association with the identification information;
A search step of reading out the data stored in association with the identification information input in the input step;
Further comprising
In the storing step, storing the first seal feature data in association with at least the identification information,
In the search step, when the identification information is input in the input step, read out the first seal feature data based on the seal of the first seal stored in association with at least the identification information,
In the collation step, the first seal stamp and the second seal stamp are the same based on at least the first seal feature data read in the search step and the seal image data of the second seal. To determine whether it is a thing,
The seal stamp collation method according to any one of claims 12 to 14, characterized in that: A reading process of reading an imprint in a seal frame and acquiring imprint data based on the imprint;
Based on the seal data acquired by the reading unit, seal feature extraction processing for extracting seal feature data indicating an intersection of the seal and a reference graphic that is an arbitrary graphic in the seal frame;
A collation process for determining whether or not the two seals are the same based on whether or not the data based on the seal impressions of the two seals match,
A program for causing a computer to execute
In the matching process,
It is determined whether or not the first seal stamp and the second seal stamp are the same based on the seal feature data based on the seal stamp of the first seal and the seal stamp data based on the seal stamp of the second seal To
A program characterized by that.