JP5854097B2 - Imprint extraction device, seal extraction system, seal impression extraction method, program, and seal verification device - Google Patents

Description

  The present invention relates to an imprint extraction device, an imprint extraction system, an imprint extraction method, a program, and a seal collation device.

  In a financial institution or the like, an operator performs seal verification using an imprint image (registered imprint) including an imprint of a customer's registered seal and an imprint image (transaction imprint) including an imprint of a transaction stamp. In the seal verification, a verification seal is extracted from each of the registration seal read from the registration slip and the transaction stamp read from the use slip submitted by the customer at the time of the transaction.

  Here, if a plurality of registration marks or registration marks lacking a frame are stamped in the seal field on the registration form, the verification imprint cannot be extracted from the registration imprint, and the verification work is performed by visual confirmation of the operator. It will be.

  Similarly, if there are multiple transaction stamps or transaction stamps with missing stamp frames in the seal column on the transaction form, verification stamps cannot be extracted from the transaction seals, and verification is performed by visual confirmation by the operator. Or the customer will be asked to resubmit the transaction form.

  For this reason, if the quality of the registered seal or transaction seal is poor, the verification procedure becomes complicated, the verification time becomes long, and the quality of the customer service decreases.

  For this reason, Patent Document 1 below discloses a method for checking a seal against a registered seal, and in particular, when reading a seal from a slip or the like, a seal detection method for deleting only a seal field or dirt and detecting only the seal.

JP-A 63-259775

  However, in the above-described seal detection method, it is necessary for the operator to instruct the verification seal on the seal displayed on the display, so that the seal cannot be extracted quickly and easily.

  Therefore, the present invention is intended to provide an imprint extraction device, an imprint extraction system, an imprint extraction method, a program, and a seal verification device that can quickly and easily extract an imprint for verification.

According to an aspect of the present invention, an imprint extraction unit that extracts one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with the collation imprint, and the extraction A determination unit that determines whether or not an imprint is missing due to protrusion from the collated seal imprint, and the imprint extraction unit extracts an imprint that is not determined to be missing due to protrusion from the collated imprint as the extracted imprint An imprint extraction device is provided that repeats extraction of an imprint from the collated imprint until it is done.

  The imprint extraction unit may remove the extracted imprint from the collated imprint when the extracted imprint is missing due to protrusion from the collated imprint.

  The determination unit may determine that the extracted imprint protrudes from the collated imprint when the extracted imprint region is in contact with an edge of the collated imprint.

  Further, the determination unit may determine that the extracted imprint protrudes from the collated imprint when the central coordinate of the extracted imprint is separated from the central coordinate of the collated imprint by a predetermined threshold or more.

  The determination unit may determine that the extracted imprint protrudes from the collated imprint when the center coordinate of the extracted imprint is a distance from the end coordinates of the collated imprint being a predetermined threshold value or less. .

Further, according to another aspect of the present invention, an imprint extracting unit that extracts one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with the collated imprint A determination unit that determines whether the extracted imprint is missing due to protrusion from the collated seal imprint, wherein the imprint extraction unit extracts an imprint that is not determined to be missing due to protrusion from the collated imprint There is provided an imprint extraction system that repeats extraction of an imprint from the checked imprint until it is extracted as an imprint.

Further, according to another aspect of the present invention, extracting one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with the collated imprint, It is determined whether the extracted imprint is missing due to the protrusion from the collated seal imprint, and until the imprint that is not determined to be missing due to the protrusion from the collated imprint is extracted as the extracted imprint from the collated imprint imprint extraction method includes repeating the extraction of the print image, a is provided.

According to another aspect of the present invention, an imprint extraction function for extracting one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with a collation imprint. A determination function for determining whether or not the extracted imprint is missing due to protrusion from the collated imprint, and the imprint extraction function extracts an imprint that is not determined to be missing due to protrusion from the collated imprint There is provided a program for causing a computer to repeat the extraction of an imprint from the collated impression until it is extracted as an imprint.

Further, according to another aspect of the present invention, an imprint extracting unit that extracts one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with the collated imprint A determination unit that determines whether the extracted imprint is missing due to protrusion from the collated seal imprint, wherein the imprint extraction unit extracts an imprint that is not determined to be missing due to protrusion from the collated imprint There is provided a seal collation apparatus that repeats extraction of an imprint from the collated seal stamp until it is extracted as a seal stamp.

  As described above, according to the present invention, it is possible to provide an imprint extraction device, an imprint extraction system, an imprint extraction method, a program, and a seal verification device that can quickly and easily extract an imprint for verification.

It is a figure showing composition of a financial system to which a seal collation device concerning an embodiment of the present invention is applied. It is a block diagram which shows the main function structures of a seal stamp collation apparatus. It is a flowchart which shows operation | movement of the seal stamp collation apparatus shown in FIG. It is explanatory drawing (1/2) which shows operation | movement of the stamp collation apparatus shown in FIG. It is explanatory drawing (2/2) which shows operation | movement of the stamp collation apparatus shown in FIG. It is a flowchart which shows the conventional seal stamp collation method. It is explanatory drawing (1/3) which shows the seal | sticker collation method shown in FIG. It is explanatory drawing (2/3) which shows the seal | sticker collation method shown in FIG. It is explanatory drawing (2/3) which shows the seal | sticker collation method shown in FIG.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  Hereinafter, after describing a conventional seal stamp matching method with reference to FIGS. 5 and 6A to 6C, the seal stamp matching apparatus 50 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4A and 4B. To do. In the following, a case where the seal collation apparatus 50 is applied to a financial system will be described. However, the seal collation apparatus 50 may be applied to other systems, or may be used alone without being applied to the system. .

[1. Conventional seal verification method]
FIG. 5 shows the procedure of the conventional seal collation method. As shown in FIG. 5, when a customer brings a transaction form to a financial institution at the time of a transaction, the operator O sets the transaction form on a scanner connected to the operator terminal.

  The operator terminal performs transaction form recognition processing, and acquires a seal image S1 (transaction seal S1) including a seal of the transaction seal stamped in the seal column W1 of the transaction form (step S1). Further, the operator terminal acquires the account information described in the customer information description column of the transaction form, and acquires the seal image S2 (registered seal S2) including the seal of the registered seal from the seal server 15 based on the account information (S2). ).

  Then, the operator terminal extracts images for verification (images for verification) from the transaction seal S1 and the registered seal S2 (S3), and outputs them to the display or printer as verification information. The operator O collates the seal impression using the collation information (S4), and inputs the collation result to the operator terminal.

  As shown in FIG. 6A, the transaction stamp S1 is stamped in the stamp column W1 of the transaction form, and the same registration mark S2 as the transaction stamp S1 is stamped in the stamp column W2 of the registration slip. Normally, one imprint S2 is stamped in the stamping column W2 of the registration form without protruding from the stamping column W2. In this case, an imprint for verification can be appropriately extracted.

  On the other hand, two or more registration marks S2, S2 ′,... (Or one or more unregistered marks together with the registration mark S2) are stamped in the stamping field W2 of the registration form, or the registration mark S2 is stamped out of the stamping field W2. For example, when the quality of the registered seal S2 is poor, it is difficult to appropriately extract a seal for verification.

  Here, the registered seal means a seal imprinted as a seal used by a customer for account transactions, etc. that should be actually registered, and an unregistered seal refers to an official of a financial institution that should not be registered. This means the seal imprinting the seal.

  6B and 6C show an example in which the quality of the registered stamp S2 is poor. When the unregistered mark S2a and the registered mark S2b are stamped in the stamped field W2 of the registration form, or when the registered mark S2c protruding from the stamped field W2 and the registered mark S2d not protruding are stamped. It is not possible to extract an imprint for verification. Alternatively, each is extracted as a plurality of seal impressions and cannot be collated.

  Further, when the registration mark S2e that does not protrude from the stamping column W2 and the registration mark S2f that protrudes are stamped, the registration mark S2g that protrudes and the registration mark S2h that does not protrude are also slightly overprinted. The imprint for verification cannot be extracted. Alternatively, each is extracted as a plurality of seal impressions and cannot be collated.

  In FIG. 6B, the unregistered mark S2a is stamped so as to fit in the stamping column W2. However, since the unregistered mark S2a is often stamped outside the stamp field W2, when the image including the imprint of the registered mark S2b is partially included (some include the imprint of the registered stamp S2b). In some cases, the edges of the image are touched and missing.

  In addition, in the case where both the unregistered mark S2a and the registered mark S2b are stamped and reflected, there are cases where the unregistered mark S2a is clearer and the registered mark S2b is unclearer. In such a case, it is difficult to correctly extract the imprint for verification.

  In such a case, the collation work is performed by visual confirmation of the operator O. Similarly, even when the quality of the transaction seal S1 is poor, the verification seal cannot be appropriately extracted, and the verification operation is performed by the visual confirmation of the operator O.

[2. Configuration of seal collation apparatus 50 according to an embodiment of the present invention]
FIG. 1 shows the configuration of a financial system to which a seal stamp verification apparatus 50 according to an embodiment of the present invention is applied. In the example shown in FIG. 1, the financial system is installed in a management center 1 such as a financial institution and a plurality of business stores 2. FIG. 1 shows only one business store 2.

  In the management center 1, an account server 11, an authentication server 12, an AP server 13, a DB server 14, and a seal server 15 are connected and installed through a LAN 16. In the business store 2, an operator terminal 21, an administrator terminal 22, a printer 23, and a store server 24 are connected and installed through a LAN 25. The system of the management center 1 and the system of the sales store 2 are connected to each other through the LANs 16 and 25 and the dedicated network NW.

  The account server 11 executes business applications and manages customer data. The authentication server 12 manages the authentication information of the operator O who works at a plurality of business stores 2, and performs authentication management on the system. The AP server 13 processes individual tasks generated on the system, such as login management. The DB server 14 stores individual business data generated on the system in a database (DB) 14a. The seal stamp server 15 manages the seal S2 (registered seal S2) of the customer's registered seal in association with the customer's account information.

  The operator terminal 21 is connected to the scanner 21a, and processes a form input, book entry / deposit, etc. through an operation by the operator O. The operator terminal 21 functions as a seal verification device 50. The administrator terminal 22 processes an approval request from the operator terminal 21 through an operation by the administrator. The printer 23 outputs collation information and the like. The store server 24 manages data for individual operations that occur on the system.

  FIG. 2 shows a functional configuration of the seal collation device 50. As shown in FIG. 2, the seal collation apparatus 50 includes a collation imprint acquisition unit 51, a collation imprint acquisition unit 52, a collation imprint preprocessing unit 53, a collation imprint preprocessing unit 54, a seal imprint extraction unit 55, and an extraction imprint processing unit. 56, an imprint removal unit 57, an imprint re-extraction unit 58, and a collation processing unit 59.

  The collation imprint acquisition unit 51 acquires a collation imprint composed of one imprint. The check target imprint acquisition unit 52 acquires a check target stamp that includes two or more stamps and is checked against the check stamp. Here, the verification seal imprint and the verification seal impression may be the transaction seal S1 and the registration seal S2, or the registration seal S2 and the transaction seal S1, respectively. In the following, a case where a plurality of seal impressions are included in the registered seal impression S2 will be described. In this case, the verification seal is the transaction seal S1, and the verification seal is the registered seal S2.

  The transaction seal imprint S1 is read and acquired by the scanner 21a or the like, for example, as an imprint of the transaction stamp S1 stamped in the seal column W1 of the transaction form. The registered seal stamp S2 is acquired from the seal stamp server 15 as a seal stamp of the registered stamp S2 stamped in the stamp field W2 of the registered form, for example.

  The collation imprint preprocessing unit 53 extracts the imprint included in the collation imprint image and calculates the area size of the imprint. Note that the extraction of the imprint in the verification seal and the calculation of the region size are performed in the same manner as in the case of the verification seal described later. The to-be-matched imprint preprocessing unit 54 detects the number of two or more imprints included in the image of the to-be-matched imprint.

  The imprint extraction unit 55 extracts an image of one imprint included in the check target imprint as an extracted imprint. Here, the extracted seal stamp is extracted as a stamp frame (seal seal round frame, square frame, etc.) and a seal stamp within the stamp frame. For example, a stamp frame is detected on a pixel pattern of a check target stamp and extracted as a stamp pattern and a pixel pattern in the stamp frame. If the stamp frame is slightly missing, the seal image may be extracted by supplementing the missing portion of the stamp frame.

  The extracted imprint processing unit 56 calculates the area size of the extracted imprint, and determines whether the difference in area size between the extracted imprint and the verification imprint is less than a predetermined threshold. Here, the extracted imprint region is defined as an extracted imprint stamp frame and a region within the stamp frame. The area size is calculated, for example, by counting the stamp frame and the number of pixels in the stamp frame on the extracted imprint pixel pattern. Further, the relative position (coordinates) in the image of the collation imprint of each imprint or the image to be collated is also calculated.

  In addition, the extracted imprint processing unit 56 determines whether the extracted imprint region is missing. Here, the lack of the region is confirmed by confirming the continuity of the stamp frames on the pixel pattern of the extraction region, for example. If the stamp frame is slightly missing, the missing portion of the stamp frame may be compensated.

  In this case, the lack of the region is determined based on the ratio of the discontinuous portion in the entire assumed stamp frame. Further, the lack of the area may be determined by referring to the relative coordinates of the extracted imprint with respect to the imprint image and by having one or two sides of the extracted imprint area in contact with the edge of the imprint image. Further, the lack of a region is determined by whether the center coordinates of the extracted imprint are separated from the center coordinates of the imprint image by a predetermined threshold or more, or the distance from the end coordinates of the imprint image is not more than the predetermined threshold. Also good. Here, the determination condition may be an OR condition or an AND condition.

  The imprint removal unit 57 removes the extracted imprint from the comparison target imprint when the difference in area size is equal to or larger than a predetermined threshold or the extracted imprint area is missing. Here, the removal of the extracted imprint is performed, for example, by removing the pixel pattern of the extracted imprint from the pixel pattern of the checked imprint. Further, the removal of the extracted imprint may be performed by painting the pixel pattern of the extracted imprint with the background color pixels.

  When the extracted imprint is removed from the check target imprint and only one imprint is left, the imprint re-extraction unit 58 re-extracts the remaining imprint as a check imprint.

  The collation processing unit 59 outputs the collation imprints for collation and imprint to be collated as collation information to a display (not shown), the printer 23, and the like. Further, the collation processing unit 59 provides the result of the seal collation for processing such as book entry / withdrawal according to the result of the collation work by the operator O based on the collation information.

  Note that at least a part of the configuration described above may be realized by software (program) that operates on the seal stamp verification apparatus 50, or may be realized by hardware. When implemented by software, the program may be stored in advance on the seal collation device 50 or supplied from the outside.

[3. Operation of Seal Verification Device 50 According to Embodiment of the Present Invention]
FIG. 3 shows an operation procedure of the seal collator 50 shown in FIG. In the following, a case will be described in which a verification imprint can be extracted from the transaction seal S1, but a verification imprint cannot be extracted from the registered seal S2. However, the present invention can extract the verification imprint from the registered seal S2 by the conventional verification process, but can be similarly applied to the case where the verification imprint cannot be extracted from the transaction seal S1. The following operation is executed by each component provided in the operator terminal 21 described above.

  As shown in FIG. 3, when a customer brings a transaction form to the sales office 2 at the time of transaction, the operator O sets the transaction form on the scanner 21 a connected to the operator terminal 21.

  The operator terminal 21 performs transaction form recognition processing, and acquires the transaction seal S1 from the seal column W1 of the transaction form (step S11). Further, the operator terminal 21 acquires the account information described in the customer information description column of the transaction form, and acquires the registered seal S2 from the seal server 15 based on the account information (S12). Note that the account information confirmation process by the operator O may be performed before obtaining the registered seal stamp S2.

  The operator terminal 21 detects the number of imprints included in the registered imprint S2 (S13), and determines whether the number of imprints is 2 or more (S14). Here, the number of imprints is held as imprint number information. Then, when the number of imprints is 1, the operator terminal 21 proceeds to the processes of steps S15 and S25 and performs a normal collation process.

  In a normal collation process, the operator terminal 21 extracts a collation imprint from each of the transaction imprint S1 and the registered imprint S2 and outputs it to the display or printer 23 as collation information. The operator O collates the seal stamp using the collation information and inputs the collation result to the operator terminal 21.

  On the other hand, when the number of imprints is 2 or more, the operator terminal 21 calculates the area size and relative coordinates of the transaction imprint S1 (S16). Further, the operator terminal 21 extracts the imprint of 1 from the registered seal S2 as an extracted seal (S17).

  Next, the operator terminal 21 calculates the region size and relative coordinates of the extracted seal impression (S18). Then, the operator terminal 21 determines whether the difference in area size between the extracted seal impression and the transaction seal impression S1 is less than a predetermined threshold (S19). The predetermined threshold is set as, for example, 5% of the area size of the transaction stamp S1, but may be set according to other criteria.

  The operator terminal 21 performs the process of subsequent step S20 when the difference in area size is less than the threshold value, and proceeds to the process of step S21 when the difference is not less than the threshold value.

  If the difference in area size is less than the threshold value, the operator terminal 21 determines whether the extracted imprint area is missing (S20). If the area is missing, the operator terminal 21 performs the process of the subsequent step S21. If the area is not missing, the operator terminal 21 performs the matching process using the extracted imprint as a check impression (S25). The operator terminal 21 may determine whether the ratio of the discontinuous portion in the entire stamp frame is equal to or higher than a predetermined threshold (for example, 5% or higher).

  If the area size difference is equal to or larger than the threshold value or the area is missing, the operator terminal 21 removes the extracted imprint part from the registered imprint S2 (S21) and subtracts the imprint number information (S22). Then, it is determined whether the number of imprints is 1, that is, whether only one imprint is left as the registered imprint S2 (S23).

  When the number of imprints is 1, the operator terminal 21 re-extracts the remaining imprints (S24) and performs collation processing as a collation imprint (S25). On the other hand, when the number of imprints is 2 or more, the operator terminal 21 returns to the process of step S17, and extracts another imprint as an extracted imprint from the registered imprint S2 from which the extracted imprint has been removed. And operator terminal 21 performs processing of Steps S18-S22 by making another imprint as an extraction imprint.

  FIGS. 4A and 4B show examples of extracting a seal impression for verification. In the figure, the broken line indicates the extracted imprint that has been removed, and the hatched area indicates the check imprint. First, an example is shown in which the unregistered mark S2a and the registered mark S2b are stamped in the stamped column W2 of the registered form, and the difference in area size between the unregistered mark S2a and the transaction mark S1 is greater than or equal to the threshold value. In this example, when the unregistered seal imprint S2a is extracted first, the extracted imprint S2a is removed and the registered seal imprint S2b is re-extracted as a collation imprint as shown in the figure. On the other hand, when the seal stamp S2b of the registration mark is extracted first, it is extracted as a seal stamp for verification, although not shown.

  Secondly, an example is shown in which the registration mark S2c protruding from the stamping field W2 and the registration mark S2d not protruding are stamped in the stamping field W2 of the registration form. In this example, when the imprint S2c of the registration mark is extracted first, as shown in the figure, the extracted imprint S2c is determined to be small in size or missing, and the imprint S2d of the registration mark is removed. Re-extracted as a seal for verification. On the other hand, when the seal stamp S2d of the registration mark is extracted first, it is extracted as a seal stamp for verification, although not shown.

  Thirdly, an example is shown in which the registration mark S2e not protruding from the stamping field W2 and the protruding registration mark S2f are stamped in the stamping field W2 of the registration form. In this example, when the seal stamp S2e of the registration mark is extracted first, it is extracted as a seal stamp for verification as shown in the figure. On the other hand, when the seal stamp S2f of the registered seal is extracted first, although not shown, the extracted seal stamp S2f is determined to be small in size or missing, and the seal stamp S2e of the registered stamp is collated. It is re-extracted as a seal for use.

  Fourthly, an example is shown in which the registration mark S2g that protrudes and the registration mark S2h that does not protrude are slightly overlapped in the stamping column W2 of the registration form. In this example, when the imprint S2g of the registration mark is extracted first, as shown in the figure, the extracted imprint S2g is determined to be small in size or missing, and the imprint S2h of the registration mark is removed. Re-extracted as a seal for verification. Here, although the stamp frame of the registration mark S2g overlaps the area of the registration mark S2h, by removing only the portion outside the stamp frame, the seal stamp S2h of the registration mark is appropriately re-extracted as a check stamp. be able to.

  On the other hand, when the seal stamp S2h of the registration mark is extracted first, it is extracted as a seal stamp for verification, although not shown. Here, since the stamp frame of the registration mark S2g overlaps the area of the registration mark S2h, the extraction process may be re-executed so that the imprint S2g of the registration mark is extracted first.

  Although not shown in FIGS. 4A and 4B, as described above, when both the unregistered mark S2a and the registered mark S2b are stamped and reflected, the unregistered mark S2a is clearer and registered. Even when the mark S2b is unclear, it is determined that the size of the unregistered mark S2a is different, or it is determined that the imprint is missing, and the registered mark S2b can be appropriately extracted. Thereby, for example, even in a processing method in which a clear imprint is first extracted, the previously registered unregistered mark S2a can be excluded and the registered mark S2b can be appropriately extracted.

[4. Summary]
According to the seal stamp collation apparatus 50 according to the above-described embodiment, one imprint is extracted as an extracted imprint from the registered imprint S2 including two or more imprints. Then, when the difference between the area sizes of the extracted seal and the transaction seal S1 is equal to or larger than a predetermined threshold or the extracted seal area is missing, the extracted seal is removed from the registered seal S2, and the verification seal is re-extracted. Is done. As a result, the imprint improper for collation is removed based on the region size and shape of the extracted imprint without instructing the collation imprint, so that the imprint for collation can be extracted quickly and easily. .

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention pertains can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

  For example, in the above-described embodiment, a case has been described in which the transaction seal S1 is a verification seal and the registered seal S2 is a verification seal. However, the present invention can be similarly applied to the case where the registered seal S2 is a verification seal and the transaction seal S1 is a verification seal.

DESCRIPTION OF SYMBOLS 21 Operator terminal 50 Seal stamp collation apparatus 51 Collation imprint acquisition part 52 Collation imprint acquisition part 53 Collation imprint pre-processing part 54 Collation imprint pre-processing part 55 Imprint extraction part 56 Extraction imprint process part 57 Imprint removal part 58 Impression re-extraction part 59 Verification processing part S1 Transaction seal (imprint of transaction seal)
S2 registration seal (imprint of registration seal)
W1 Stamp field for transaction stamp W2 Stamp field for registration stamp O Operator

Claims (9)

An imprint extraction unit that extracts one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with a collation imprint;
A determination unit that determines whether the extracted seal imprint is missing due to protrusion from the collated seal impression,
The imprint extraction device, wherein the imprint extraction unit repeats extraction of an imprint from the collated impression until an imprint that is not determined to be missing due to the protrusion from the collated imprint is extracted as the extracted imprint.   The imprint extraction device according to claim 1, wherein the imprint extraction unit removes the extracted imprint from the collated imprint when the extracted imprint is missing due to protrusion from the collated imprint.   The imprint extraction device according to claim 1 or 2, wherein the determination unit determines that the extracted imprint protrudes from the collated imprint when the extracted imprint region is in contact with an edge of the collated imprint.   3. The determination unit according to claim 1, wherein when the central coordinate of the extracted imprint is separated from the central coordinate of the collated imprint by a predetermined threshold or more, the determination unit determines that the extracted imprint protrudes from the collated imprint. The imprint extraction device described.   The determination unit determines that the extracted imprint protrudes from the collated imprint when the center coordinate of the extracted imprint is a distance from the end coordinates of the collated imprint being a predetermined threshold value or less. 2. The seal impression extracting apparatus according to 2. An imprint extraction unit that extracts one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with a collation imprint;
A determination unit that determines whether the extracted seal imprint is missing due to protrusion from the collated seal impression,
The imprint extraction system, wherein the imprint extraction unit repeats extraction of an imprint from the collated impression until an imprint that is not determined to be missing due to the protrusion from the collated imprint is extracted as the extracted imprint. Extracting one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with a collation imprint;
Determining whether the extracted imprint is missing due to a protrusion from the collated imprint;
Imprint extraction method comprising: repeating extraction of an imprint from the checked imprint until an imprint that is not determined to be missing due to protrusion from the checked imprint is extracted as the extracted imprint. An imprint extraction function for extracting one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with a collation imprint;
A determination function for determining whether or not the extracted imprint is missing due to protrusion from the collated seal impression,
The imprint extraction function repeats extraction of an imprint from the collated impression until an imprint that is not determined to be missing due to the protrusion from the collated imprint is extracted as the extracted imprint .
A program to make a computer realize. An imprint extraction unit that extracts one imprint included in the collated imprint as an extracted imprint for a collated imprint that includes two or more imprints and is collated with a collation imprint;
A determination unit that determines whether the extracted imprint is missing due to protrusion from the collated imprint,
The seal stamp extracting apparatus, wherein the seal stamp extracting unit repeats extraction of seal stamps from the collated seal stamp until a seal stamp that is not determined to be missing due to the protrusion from the collated stamp stamp is extracted as the extracted seal stamp.

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