JP7073886B2 - Information processing system, information processing method and program - Google Patents

Description

The present invention relates to an information processing system, an information processing method and a program.

Patent Document 1 discloses a fingerprint image synthesizer that generates a composite fingerprint image using two types of images, a rotation impression and a plane impression. The fingerprint image synthesizer has a function of extracting core wires from an image, and by collating the core wires of a rotation impression and a plane impression, corresponding point data showing the correspondence between them is generated.

Japanese Unexamined Patent Publication No. 2006-018731

In the process of extracting the core wire from the image as exemplified in Patent Document 1, the core wire may not be properly extracted, and it may be necessary for the user to correct the core wire.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an information processing system, an information processing method, and a program that assist a user in correcting a core wire.

According to one aspect of the present invention, a core wire extraction unit that extracts a plurality of core wire groups different from each other by a plurality of algorithms from an image including a skin pattern, and a first core wire group extracted from the image by the first algorithm. Provided is an information processing system including a core wire replacement portion for replacing a part of the core wire group with a part of the second core wire group extracted from the image by the second algorithm.

According to another aspect of the present invention, a step of extracting a plurality of core wire groups different from each other by a plurality of algorithms from an image including a skin pattern, and a first core wire group extracted from the image by the first algorithm. Provided is an information processing method comprising a step of replacing a part of the above with a part of a second core wire group extracted from the image by the second algorithm.

According to another aspect of the present invention, a step of extracting a plurality of core wire groups different from each other by a plurality of algorithms from an image including a skin pattern on a computer, and a first method of extracting from the image by the first algorithm. A program for executing a step of replacing a part of the core wire group of the above with a part of the second core wire group extracted from the image by the second algorithm is provided.

According to the present invention, it is possible to provide an information processing system, an information processing method and a program that assist a user in correcting a core wire.

It is a block diagram which shows the hardware configuration example of the information processing system which concerns on 1st Embodiment. It is a functional block diagram of the information processing system which concerns on 1st Embodiment. It is a flowchart which shows the outline of the processing performed by the information processing system which concerns on 1st Embodiment. It is a figure which shows an example of the fingerprint image. It is a figure which shows an example of the extracted core wire. It is a figure which shows an example of the core wire extracted by the algorithm A. It is a figure which shows an example of the core wire extracted by the algorithm B. It is a figure which shows the display example which superposed two core wire groups. It is a figure which shows the example of the correction process of a core wire group. It is a figure which shows the display example which superposed the two core wire groups after correction. It is a table which shows the relation between the core wire group and the core wire number. It is a figure which shows the example of the method of specifying the replacement position of a core wire. It is a figure which shows the example of the setting method of a replacement area. It is a figure which shows the example of the setting method of a replacement area. It is a figure which shows an example of the core wire after replacement. It is a functional block diagram of the information processing system which concerns on 2nd Embodiment.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings. Similar elements or corresponding elements may be designated by the same reference numerals in the drawings, and the description thereof may be omitted or simplified.

[First Embodiment]
The information processing system according to this embodiment will be described with reference to FIGS. 1 to 15. The information processing system of the present embodiment supports a user who tries to extract a core wire as a pre-processing for collation from a fingerprint image collected in advance for fingerprint collation. The extracted core wire is used for extracting feature points such as end points and branch points. By collating the feature points among a plurality of fingerprint images, it is possible to perform fingerprint collation for determining whether or not the fingerprint images to be collated belong to the same person. The information processing system of the present embodiment may have a function for fingerprint collation such as feature point extraction and feature point collation as well as support for core wire extraction.

The information processing system of the present embodiment is not limited to extracting the core wire from the fingerprint image, and may be applied to an image including a skin pattern other than the fingerprint. The skin pattern may include bumps on the skin at any site such as fingerprints, palm prints, foot prints and the like.

Among the biological collations using skin imprints, fingerprint collations using fingerprints are widely used. Further, in the feature point extraction from the fingerprint image, the core wire is often extracted. Therefore, the information processing system of the present embodiment is most preferably applied to the core wire extraction from the fingerprint image. Therefore, in the following description, it is assumed that the information processing system is suitable for extracting the core wire from the fingerprint image.

FIG. 1 is a block diagram showing a hardware configuration example of the information processing system 100. The information processing system 100 may be, for example, a computer such as a desktop PC (Personal Computer), a notebook PC, or a tablet PC.

The information processing system 100 includes a CPU (Central Processing Unit) 151, a RAM (Random Access Memory) 152, a ROM (Read Only Memory) 153, and an HDD (Hard Disk Drive) 154 as a computer that performs calculation, control, and storage. Further, the information processing system 100 includes a communication I / F (interface) 155, a display device 156, and an input device 157. The CPU 151, RAM 152, ROM 153, HDD 154, communication I / F 155, display device 156, and input device 157 are connected to each other via a bus 158. The display device 156 and the input device 157 may be connected to the bus 158 via a drive device (not shown) for driving these devices.

In FIG. 1, each part constituting the information processing system 100 is shown as an integrated device, but some of these functions may be provided by an external device. For example, the display device 156 and the input device 157 may be external devices different from the parts constituting the functions of the computer including the CPU 151 and the like.

The CPU 151 is a processor that performs a predetermined operation according to a program stored in the ROM 153, the HDD 154, or the like, and also has a function of controlling each part of the information processing system 100. The RAM 152 is composed of a volatile storage medium and provides a temporary memory area necessary for the operation of the CPU 151. The ROM 153 is composed of a non-volatile storage medium and stores necessary information such as a program used for operating the information processing system 100. The HDD 154 is a storage device composed of a non-volatile storage medium and storing data necessary for processing, an operation program of the information processing system 100, and the like.

The communication I / F 155 is a communication interface based on standards such as Ethernet (registered trademark), Wi-Fi (registered trademark), and 4G, and is a module for communicating with other devices. The display device 156 is a liquid crystal display, an OLED display, or the like, and is used for displaying images, characters, interfaces, and the like. The input device 157 is a keyboard, a pointing device, or the like, and is used for the user to operate the information processing system 100. Examples of pointing devices include mice, trackballs, touch panels, pen tablets and the like. The display device 156 and the input device 157 may be integrally formed as a touch panel.

The hardware configuration shown in FIG. 1 is an example, and devices other than these may be added or some devices may not be provided. Further, some devices may be replaced with other devices having similar functions. Further, some functions of the present embodiment may be provided by other devices via a network, or the functions of the present embodiment may be distributed and realized by a plurality of devices. For example, the HDD 154 may be replaced with an SSD (Solid State Drive) using a semiconductor memory, or may be replaced with a cloud storage.

FIG. 2 is a functional block diagram of the information processing system 100 according to the present embodiment. The information processing system 100 includes a core wire extraction unit 101, a core wire correction unit 102, a core wire number calculation unit 103, a replacement area setting unit 104, a candidate identification unit 105, a display information generation unit 106, a core wire replacement unit 107, an input reception unit 108, and a storage unit. It has a part 109.

The CPU 151 loads the program stored in the ROM 153, the HDD 154, etc. into the RAM 152 and executes the program. As a result, the CPU 151 realizes the functions of the core wire extraction unit 101, the core wire correction unit 102, the core wire number calculation unit 103, the replacement area setting unit 104, the candidate identification unit 105, the display information generation unit 106, and the core wire replacement unit 107. The processing performed in each of these parts will be described later. The CPU 151 realizes the function of the input receiving unit 108 by controlling the input device 157. The CPU 151 realizes the function of the storage unit 109 by controlling the HDD 154.

FIG. 3 is a flowchart showing a process performed by the information processing system 100 according to the present embodiment. The process of extracting and replacing the core wire performed by the information processing system 100 will be described with reference to FIG.

In step S101, the CPU 151 of the information processing system 100 acquires a fingerprint image for extracting the core wire. The fingerprint image may be acquired, for example, by reading the fingerprint image from the fingerprint database stored in the storage unit 109, or by acquiring it from an external device of the information processing system 100 such as a data server. May be good. When the information processing system 100 is attached with an optical fingerprint reading device, the CPU 151 may control the optical fingerprint reading device to acquire a fingerprint image.

FIG. 4 is a diagram showing an example of a fingerprint image. The fingerprint image shown in FIG. 4 can be, for example, an image of a pattern transferred to paper by applying ink or the like to a finger and pressing the finger on the paper. The fingerprint image is stored in a storage unit 109 or the like in a state of being digitized in a predetermined file format. The digitized fingerprint image can be, for example, a grayscale image. The fingerprint image may be an image collected by an optical fingerprint reading device or an image of a fingerprint left on an object, and the collection method is not particularly limited.

In step S102, the core wire extraction unit 101 automatically extracts the core wire from the fingerprint image. In the fingerprint of FIG. 4, the black portion corresponds to the ridge of the fingerprint. Therefore, in this process, the core wire extraction unit 101 recognizes the black portion (the portion having low brightness) of the fingerprint image and generates image data in which the core wire is drawn so as to trace the black portion, thereby extracting the core wire. The extracted core wire may be, for example, a line having a width of one pixel. FIG. 5 is a diagram showing an example of the extracted core wire. As shown in FIG. 5, a large number of core wires are extracted so as to pass near the center of the black portion. In this specification, a set of a large number of core wires corresponding to a fingerprint image may be referred to as a core wire group.

Here, the algorithm used for extracting the core wire by the core wire extraction unit 101 is not one, and various algorithms may be used. The difference between the plurality of algorithms may be, for example, the difference in the parameters of image processing such as smoothing of the fingerprint image, contour enhancement, and noise removal performed as preprocessing at the time of extracting the core wire. Further, as another example of the difference between the plurality of algorithms, there may be a difference in the parameters of the extraction process such as the extraction resolution and the threshold value used for discriminating the ridge line.

Therefore, in the process of step S102, the core wire extraction unit 101 extracts a plurality of core wire groups different from each other by using a plurality of algorithms for one fingerprint image. The core wires extracted in this way are different from each other due to the difference in the algorithm.

FIG. 6 is a diagram showing an example of a core wire group extracted by a certain algorithm A, and FIG. 7 is a diagram showing an example of a core wire group extracted by an algorithm B different from the algorithm A. 6 and 7 are enlarged views of the vicinity of the region R1 shown in FIG. As shown in FIGS. 6 and 7, different points may exist in the core wire group extracted from one fingerprint image by using different algorithms. The difference in the core wire group is due to the difference in the parameters of the image processing and the extraction processing used in the algorithm.

When any one of the plurality of core wire groups thus obtained can best express the characteristics of the fingerprint image, the best core wire group may be adopted. However, there are advantages and disadvantages to a plurality of core wire extraction algorithms, and it is difficult to construct the best algorithm in every aspect. Therefore, it often happens that the core wire group extracted by the algorithm A is excellent in a part of the fingerprint image, and the core wire group extracted by the algorithm B is excellent in another part. In such a situation, the method of adopting the best core wire group cannot obtain the core wire group that accurately expresses the characteristics of the fingerprint image.

Therefore, a process of manually correcting the core wire group extracted by any of the algorithms while referring to the fingerprint image may be performed, but the work is troublesome. Therefore, in the information processing system 100 of the present embodiment, after step S103, a part of the first core wire group extracted from the fingerprint image by the first algorithm A is extracted from the fingerprint image by the second algorithm B. A process of replacing a part of the second core wire group is performed. Here, the first algorithm A corresponding to the first core wire group is a general core wire extraction algorithm set by default. The second algorithm B corresponding to the second core wire group is also set by default in the initial processing, but may be replaced with another algorithm in step S112 for identifying the core wire group candidate described later.

In step S103, the display information generation unit 106 displays an image in which the first core wire group extracted from the fingerprint image by the algorithm A and the second core wire group extracted from the fingerprint image by the algorithm B are superimposed. Generate display information for. The CPU 151 causes the display device 156 to display an image based on this display information.

FIG. 8 is a diagram showing a display example in which the first core wire group and the second core wire group are superimposed. In FIG. 8, the portion where the core wire of the first core wire group and the core wire of the second core wire group completely match is hidden.

In the region R2, the core wire of the first core wire group and the core wire of the second core wire group coincide with each other at some points, and are slightly displaced at some points. Since the overlapping portion is hidden as described above, the core wire in the region R2 is displayed in a broken line shape.

In the region R3, the core wire of the first core wire group and the core wire of the second core wire group are displaced substantially in parallel. Therefore, the core wire in the region R3 is displayed as a double line.

In the region R4, the shapes of the core wires of the first core wire group and the core wires of the second core wire group are completely different. Therefore, the core wires in the region R4 are displayed in a mesh pattern.

By superimposing the two core wire groups in this way, the shape of the core wire is the same but the position is deviated (for example, region R3) and the shape of the core wire itself is different (for example,). Area R4) becomes clear. The information processing system 100 of the present embodiment improves the extraction accuracy of the core wire by performing different processing on these two types of portions to correct the core wire. For locations where the two core wire groups are misaligned, it is preferable to correct the core wires so as to reduce the misalignment by moving one of the core wires based on the misalignment of the two core wire groups. Further, for places where the shapes of the two core wire groups are different, it is preferable to replace the core wires between the two core wire groups having different extraction algorithms and adopt the core wire group that more reflects the characteristics of the fingerprint image. Is.

In step S104, the core wire correction unit 102 performs a process of correcting the first core wire group or the second core wire group based on the deviation between the first core wire group and the second core wire group. FIG. 9 is a diagram showing an example of a core wire group correction process. FIG. 9 shows the core wire L1 of the first core wire group and the core wire L2 of the second core wire group. The core wire correction unit 102 performs correction to move the core wire L2 closer to the core wire L1 based on the deviation between the core wire L1 and the core wire L2. By performing this process on each part of the second core wire group, it is possible to reduce the deviation between the first core wire group and the second core wire group.

In FIG. 9, the reason why the core wire L2 is a thick gray wire expresses that the center of gravity of the core wire L2 is located between the pixels when the center of gravity of the core wire L2 is moved at a pitch of one pixel or less. To do. After the core wire correction process is completed, the width of the core wire L2 can be returned to one pixel width by performing post-processing such as binarization and thinning of the core wire L2.

In the above description, the core wire of the second core wire group is moved, but the core wire of the first core wire group may be moved, or the core wire of both core wire groups may be moved.

Further, it is not essential that these exemplified methods are applied when moving the core wire in step S104 described above, and another method may be adopted. Further, if no particular problem occurs due to the deviation between the first core wire group and the second core wire group, the process of step S104 may be omitted.

FIG. 10 is a diagram showing a display example in which the first core wire group and the corrected second core wire group are superimposed. By the process of step S104, the portion where the two core wire groups are displaced is corrected, and the portion where the core wires match (the portion where the core wire is not displayed) is enlarged as compared with FIG. In FIG. 10, the regions R2 and R3 are in a state of almost matching. As a result, in FIG. 10, it is clear that the shapes of the core wires of the first core wire group and the core wires of the second core wire group are completely different as in the region R4.

In step S105, the CPU 151 of the information processing system 100 determines whether or not the correction processing of step S103 and step S104 is completed for all the core wire groups extracted by the processing of step S102. If the correction process is not completed (NO in step S105), the process proceeds to step S103, and the same process is performed on the core wire group to which the correction process has not been performed. When the correction process is completed (YES in step S105), the process proceeds to step S106.

In the loop of the correction process of step S103 and step S104, the combination of the two core wire groups is selected, for example, as follows.

It is assumed that the core wire extraction unit 101 extracts eight core wire groups by eight algorithms from algorithm A to algorithm H in step S102. Assuming that the most commonly used algorithm among these eight algorithms is algorithm A, in the first processing of steps S103 and S104, the core wire group is corrected by the combination of algorithm A and algorithm B. It will be done. Next, in the second processing of steps S103 and S104, the core wire group is corrected by the combination of the algorithm A and the algorithm C. By repeating the correction process seven times in this way, the other core wire groups are corrected so as to match the core wire group by the algorithm A.

The processing from step S103 to step S104 can be automatically performed without any operation from the user. In this case, if it is not necessary to display the progress of the process to the user, the process of steps S103 and S104 may be an internal process in the information processing system 100. That is, processing for output to the display device 156, such as generation of display information in step S103, can be omitted.

In step S106, the core wire number calculation unit 103 calculates the number of core wires included in each of the corrected core wire groups. The calculated number of core wires is stored in the storage unit 109 in a state associated with information for specifying the core wire group, such as the number of the core wire group and the type of the algorithm used for extracting the core wire. FIG. 11 is a table showing the association between the information for specifying the core wire group (core wire group No. and the core wire extraction algorithm) and the number of core wires. As shown in FIG. 11, since the shape of the core wire is different for each core wire group, the number of core wires is different for each core wire group. As a result, the core wire group can be rearranged in the order according to the number of core wires. FIG. 11 shows a table in which the number of core wires is used as a key and arranged in ascending order. By associating the information for specifying the core wire group with the number of core wires, the core wire group can be sequentially displayed in the order (ascending order, descending order, etc.) according to the number of core wires in the process described later. The number of core wires calculation unit 103 may calculate the number of core wires from the entire fingerprint image, for example, but may calculate the number of core wires from a range other than this. The number of core wires may be calculated from a part of the fingerprint image, or the core wires within a predetermined range such as in a replacement region described later may be calculated.

In step S107, the input receiving unit 108 receives the input of the replacement position of the core wire by the user. The user specifies a position on the core wire group by a pointing device such as a mouse or a pen tablet and inputs a replacement position. When the pointing device is a mouse, this operation can be a determination operation such as a button click. FIG. 12 is a diagram showing an example of a method of designating a replacement position of the core wire. With reference to the fingerprint image and the core wire group displayed on the display device 156, the user designates a portion where the shape of the extracted core wire is considered to be incorrect by using the pointer P1. The input receiving unit 108 stores the designated position in the storage unit 109, the RAM 152, etc., and makes it available in the process described later.

In step S108, the replacement area setting unit 104 sets the replacement area in which the first core wire group and the second core wire group are replaced based on the position input by the user. The method of setting the replacement region will be described with reference to FIGS. 13 and 14.

13 and 14 are diagrams showing a method for setting a replacement region. FIG. 13 shows a core wire in the vicinity of a position specified by the user. The part where the core wire of the first core wire group and the core wire of the second core wire group match is shown by a gray wire, and the core wire of the first core wire group and the core wire of the second core wire group match. The parts that are not done are shown by black lines. The replacement area setting unit 104 sets the area R5 as the initial setting range of the replacement area. The area R5 is a range of a predetermined number of pixels centered on a position designated by the user.

As shown in FIG. 13, the region R5 cannot cover the entire range in which the core wire of the first core wire group and the core wire of the second core wire group do not match. Therefore, the replacement area setting unit 104 expands the replacement area. FIG. 14 is a diagram showing a replacement region after expansion. The region R6 is a replacement region after expansion. In the expansion of the replacement area, the initial setting range is a range in which the core wire of the first core wire group and the core wire of the second core wire group do not match and are in contact with the initial setting range (near the region R5 in FIG. 13). It can be realized by expanding it so as to include the black line portion of the above. By expanding the replacement region in this way, it is possible to prevent the core wires from becoming discontinuous at the boundary between the replacement region and the outside thereof. As a result, it is possible to suppress a decrease in collation accuracy due to the occurrence of end points, branch points, etc., which are not found in the actual fingerprint image, in the replacement process.

In step S109, the core wire replacement unit 107 generates a core wire in which the portion of the replacement region of the core wires of the first core wire group is replaced with the core wire of the second core wire group. Then, the display information generation unit 106 generates display information for displaying the image of the core wire after replacement. The CPU 151 causes the display device 156 to display an image based on this display information. The core wire shown in FIG. 14 is the core wire after replacement by the process of step S109.

In step S110, the user refers to the image of the replaced core wire displayed on the display device 156 and confirms whether the replaced core wire is appropriate. The input receiving unit 108 receives the input according to the confirmation result of the user. When the user determines that the result after the replacement is appropriate (YES in step S110), the user performs an operation for confirming the replacement of the core wire, and the input receiving unit 108 accepts the operation (step). S113). When the pointing device is a mouse, this operation can be a determination operation such as a button click.

If the user determines that the result after replacement is not appropriate (NO in step S110), the user performs an operation of changing (increasing or decreasing) the number of core wires, and the input receiving unit 108 performs the operation. Is accepted (step S111). This operation is for changing the core wire group used for exchanging the core wire to the core wire group generated by another algorithm. If the pointing device is a mouse, this operation may be, for example, an operation of rotating the wheel up or down.

The operation of step S111 will be described in more detail by taking the operation of the mouse wheel as an example. The upward rotation of the wheel is associated with an instruction to increase the number of cores, and the downward rotation of the wheel is associated with an instruction to decrease the number of cores. For example, when the user rotates the wheel upward, the candidate identification unit 105 replaces the core wire group having a larger number of core wires than the core wire group currently selected as the replacement target candidate as the second core wire group with a new replacement target. It is specified as a candidate (step S112). On the contrary, when the user rotates the wheel downward, the candidate identification unit 105 newly creates a core wire group having a smaller number of core wires than the core wire group currently selected as a candidate for replacement as the second core wire group. It is specified as a candidate for replacement (step S112).

A specific example will be described with reference to FIG. In the initial state, it is assumed that the first core wire group is the core wire group (No. 1) extracted by the algorithm A, and the second core wire group is the core wire group (No. 2) extracted by the algorithm B. .. At this time, as shown in FIG. 11, the number of core wires corresponding to the algorithm B is 181. When the user rotates the wheel upward, the candidate identification unit 105 specifies an algorithm having a number of core wires in one step larger than that of 181 as the second core wire group. That is, the candidate specifying unit 105 specifies the core wire group (No. 8) having the number of core wires 184 extracted by the algorithm H as the second core wire group which is a candidate for a new replacement target.

After that, the process returns to step S108, and the same process is performed after changing the second core wire group to the core wire group (No. 8). As a result, in the second step S109, the core wire group having a larger number of core wires than in the first step S109 is displayed as a replacement target. In step S110, the user confirms whether the displayed core wire is appropriate.

By repeating the loop processing between steps S108 and S112 as described above, a GUI (Graphical User Interface) is realized in which when the user rotates the wheel up and down, the core wires in the vicinity of the specified location are sequentially switched. Will be done. In this GUI, when the user rotates the wheel upward, the number of core wires increases, and when the user rotates the wheel downward, the number of core wires decreases. The user searches for an appropriate core wire while rotating the wheel up and down, and performs an operation of confirming the replacement of the core wire when the appropriate core wire appears (step S113).

When the user determines in step S114 that the replacement of all the core wires has been completed (YES in step S114), the user instructs the information processing system 100 to end the core wire extraction by pressing the end button or the like. When the input receiving unit 108 accepts the operation, the information processing system 100 stores the replaced core wire image in the storage unit 109 and completes the processing of the flowchart of FIG.

When the user determines that the core wire to be replaced still remains (NO in step S114), the user re-enters the replacement position by the pointing device, instructs the replacement of the core wire in another place, and inputs the input receiving unit. 108 accepts the operation (step S107). As a result, the processing of steps S107 to S113 is performed again, and the core wire at another location is replaced.

FIG. 15 is a diagram showing an example of a core wire group after replacement after the processing according to the flowchart of FIG. 3 is completed. The core wire of FIG. 15 is a partially modified version of the core wire shown in FIG. 5, and the thick wire portion indicates the changed portion of the core wire. As shown in FIG. 15, the core wire of the changed portion is in a more natural state as compared with that of FIG. For the convenience of the feature point extraction process, it is desirable to set the thickness of the core wire to a constant value such as one pixel width. Therefore, in the actual screen display, the color should be changed instead of changing the thickness of the tip. It is desirable to express the changed part by.

According to this embodiment, a part of the core wire group extracted by one algorithm can be replaced with a part of the core wire group extracted by another algorithm. This makes the work easier than if the user manually corrects the core wire. As described above, according to the present embodiment, the information processing system 100 that assists the user in correcting the core wire is provided.

The system described in the above-described embodiment can also be configured as in the following second embodiment.

[Second Embodiment]
FIG. 16 is a functional block diagram of the information processing system 800 according to the second embodiment. The information processing system 800 includes a core wire extraction unit 801 and a core wire replacement unit 802. The core wire extraction unit 801 extracts a plurality of core wire groups different from each other from an image including a skin pattern by a plurality of algorithms. The core wire replacement unit 802 replaces a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.

According to the present embodiment, there is provided an information processing system 800 that assists the user in correcting the core wire.

[Modification Embodiment]
The present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit of the present invention.

Further steps may be added to the flowchart shown in FIG. 3, or any step may be omitted. For example, a step may be added between any of the steps in which the user manually corrects the core wire.

A processing method in which a program for operating the configuration of the embodiment is recorded in a storage medium so as to realize the functions of the above-described embodiment, the program recorded in the storage medium is read out as a code, and the program is executed in a computer is also described in each embodiment. Included in the category. That is, a computer-readable storage medium is also included in the scope of each embodiment. Further, not only the storage medium in which the above-mentioned program is recorded but also the program itself is included in each embodiment. Further, the one or more components included in the above-described embodiment may be a circuit such as an ASIC or FPGA configured to realize the function of each component.

As the storage medium, for example, a floppy (registered trademark) disk, a hard disk, an optical disk, a magneto-optical disk, a CD (Compact Disk) -ROM, a magnetic tape, a non-volatile memory card, or a ROM can be used. Further, the program recorded on the storage medium is not limited to the one that executes the processing by itself, but the one that operates on the OS (Operating System) and executes the processing in cooperation with other software and the function of the expansion board. Is also included in the category of each embodiment.

The service realized by the functions of each of the above-described embodiments can also be provided to the user in the form of SaaS (Software as a Service).

It should be noted that the above-described embodiments are merely examples of embodiment of the present invention, and the technical scope of the present invention should not be construed in a limited manner by these. That is, the present invention can be implemented in various forms without departing from the technical idea or its main features.

Some or all of the above embodiments may also be described, but not limited to:

(Appendix 1)
A core wire extractor that extracts multiple core wire groups that differ from each other by multiple algorithms from an image containing skin pattern, and a core wire extractor.
A core wire replacement unit that replaces a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
An information processing system characterized by being equipped with.

(Appendix 2)
The information processing system according to Appendix 1, further comprising a replacement area setting unit for setting a replacement area in which a core wire is replaced based on a user operation.

(Appendix 3)
The replacement area setting unit expands the area including the position input by the user so as to include the area where the first core wire group and the second core wire group do not match, thereby expanding the replacement area. The information processing system according to Appendix 2, wherein the information processing system is set.

(Appendix 4)
The plurality of core wire groups are associated with the number of core wires included in the plurality of core wire groups.
Addendum 1 characterized by further comprising a candidate specifying unit for specifying a candidate for the second core wire group according to the operation from the plurality of core wire groups based on an operation for changing the number of core wires by the user. The information processing system according to any one of 3 to 3.

(Appendix 5)
Each time the user performs an operation of changing the number of core wires, a display information generation unit for generating display information for displaying a candidate for the second core wire group having a different number of core wires on a display device is further provided. The information processing system according to Appendix 4, wherein the information processing system is characterized by the above.

(Appendix 6)
When the user performs an operation to increase the number of core wires, the candidate specifying unit identifies a candidate for the second core wire group so as to increase the plurality of core wire groups.
When the user performs an operation to reduce the number of core wires, the candidate specifying unit identifies a candidate for the second core wire group so as to reduce the plurality of core wire groups.
The information processing system according to Appendix 4 or 5, wherein the information processing system is characterized by the above.

(Appendix 7)
It is characterized by further including a core wire correction unit that corrects at least one of the first core wire group and the second core wire group based on the deviation between the first core wire group and the second core wire group. The information processing system according to any one of Supplementary note 1 to 6.

(Appendix 8)
The information processing system according to any one of Supplementary note 1 to 7, wherein the skin pattern is a fingerprint.

(Appendix 9)
A step of extracting multiple core wire groups that are different from each other by multiple algorithms from an image containing a skin pattern, and
A step of replacing a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
An information processing method characterized by being provided with.

(Appendix 10)
On the computer
A step of extracting multiple core wire groups that are different from each other by multiple algorithms from an image containing a skin pattern, and
A step of replacing a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
A program to execute.

100, 800 Information processing system 101, 801 Core wire extraction unit 102 Core wire correction unit 103 Core wire number calculation unit 104 Replacement area setting unit 105 Candidate identification unit 106 Display information generation unit 107, 802 Core wire replacement unit 108 Input reception unit 109 Storage unit 151 CPU
152 RAM
153 ROM
154 HDD
155 Communication I / F
156 Display device 157 Input device 158 Bus L1, L2 Core wire P1 Pointer R1-R4 area

Claims (10)

A core wire extractor that extracts multiple core wire groups that differ from each other by multiple algorithms from an image containing skin pattern, and a core wire extractor.
A replacement area setting unit that sets a replacement area in which the core wire is replaced based on the user's operation,
A core wire replacement unit that replaces a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
Equipped with
The replacement area setting unit expands the area including the position input by the user so as to include the area where the first core wire group and the second core wire group do not match, thereby expanding the replacement area. To set
An information processing system characterized by this. A core wire extractor that extracts multiple core wire groups that differ from each other by multiple algorithms from an image containing skin pattern, and a core wire extractor.
A core wire replacement unit that replaces a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
Equipped with
The plurality of core wire groups are associated with the number of core wires included in the plurality of core wire groups.
An information characterized by further comprising a candidate specifying unit for specifying a candidate for the second core wire group according to the operation from the plurality of core wire groups based on an operation for changing the number of core wires by the user. Information processing system. A display information generation unit for generating display information for displaying a candidate for the second core wire group having a different number of core wires on a display device each time the user performs an operation for changing the number of core wires is further provided. 2. The information processing system according to claim 2 . When the user performs an operation to increase the number of core wires, the candidate specifying unit identifies a candidate for the second core wire group so as to increase the plurality of core wire groups.
When the user performs an operation to reduce the number of core wires, the candidate specifying unit identifies a candidate for the second core wire group so as to reduce the plurality of core wire groups.
The information processing system according to claim 2 or 3 , wherein the information processing system is characterized by the above. It is characterized by further including a core wire correction unit that corrects at least one of the first core wire group and the second core wire group based on the deviation between the first core wire group and the second core wire group. The information processing system according to any one of claims 1 to 4 . The information processing system according to any one of claims 1 to 5 , wherein the skin pattern is a fingerprint. Information processing method executed by a computer
A step of extracting multiple core wire groups that are different from each other by multiple algorithms from an image containing a skin pattern, and
A step to set a replacement area where core wire replacement is performed based on the user's operation, and
A step of replacing a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
Equipped with
The replacement region is set by expanding the region including the position input by the user so as to include a region in which the first core wire group and the second core wire group do not match.
An information processing method characterized by that. On the computer
A step of extracting multiple core wire groups that are different from each other by multiple algorithms from an image containing a skin pattern, and
A step to set a replacement area where core wire replacement is performed based on the user's operation, and
A step of replacing a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
It is a program to execute
The replacement region is set by expanding the region including the position input by the user so as to include a region in which the first core wire group and the second core wire group do not match.
A program characterized by that . Information processing method executed by a computer
A step of extracting multiple core wire groups that are different from each other by multiple algorithms from an image containing a skin pattern, and
A step of replacing a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
Equipped with
The plurality of core wire groups are associated with the number of core wires included in the plurality of core wire groups.
A step of specifying a candidate for the second core wire group according to the operation from the plurality of core wire groups based on the operation of changing the number of core wires by the user is further provided.
An information processing method characterized by that. On the computer
A step of extracting multiple core wire groups that are different from each other by multiple algorithms from an image containing a skin pattern, and
A step of replacing a part of the first core wire group extracted from the image by the first algorithm with a part of the second core wire group extracted from the image by the second algorithm.
Equipped with
The plurality of core wire groups are associated with the number of core wires included in the plurality of core wire groups.
A step of specifying a candidate for the second core wire group according to the operation from the plurality of core wire groups based on the operation of changing the number of core wires by the user is further provided.
A program for executing information processing methods.

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