BIOLOGICAL IMAGING SYSTEM, BIOLOGICAL IMAGING DEVICE, BIOLOGICAL IMAGING METHOD, AND RECORDING MEDIUM

Abstract

A biometric imaging system (10) comprises an imaging means (130) that images a living body present in an imaging range, a filling means (110) that fills the imaging range with a liquid, and a guiding means (120) that provides guidance for the position where the living body is to be placed using the liquid. With such a biometric imaging system, it is possible to guide a living body to the proper position to capture an image.

Description

[Technical field]

[0001] The present disclosure relates to the technical fields of a biometric imaging system, a biometric imaging device, a biometric imaging method, and a recording medium. [Background technology]

[0002] Known systems of this type guide the position of a living body when capturing an image of the living body. For example, Patent Document 1 discloses a technology for displaying a stereoscopic image to guide a finger when capturing an image of the fingerprint. Patent Document 2 discloses a technology for lighting an LED to inform a user of the timing and speed of swiping the fingertip when capturing an image of the fingerprint. Patent Document 3 discloses a technology for using a positioning projector to guide the position of a finger and notifying a user that the finger is in a predetermined position by lighting an indicator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 05-108808 [Patent Document 2] JP 2006-139592 A [Patent Document 3] JP 2006-215822 A Summary of the Invention [Problem to be solved by the invention]

[0004] This disclosure is intended to improve upon the techniques disclosed in the prior art documents. [Means for solving the problem]

[0005] One aspect of the biological imaging system disclosed herein comprises an imaging means for imaging a biological body present within an imaging range, a filling means for filling the imaging range with liquid, and a guiding means for using the liquid to guide the biological body to a position for placement.

[0006] One aspect of the biometric imaging device disclosed herein comprises an imaging means for imaging a biometric organism present within an imaging range, a filling means for filling the imaging range with liquid, and a guiding means for using the liquid to guide the biometric organism to a position for placement.

[0007] One aspect of the biometric imaging method of the present disclosure is a biometric imaging method executed by at least one computer, which includes filling an imaging range of an imaging means with liquid, using the liquid to guide a position for placing the biometric organism, and imaging the biometric organism as guided.

[0008] One aspect of the recording medium of this disclosure is a computer program recorded on at least one computer that causes the at least one computer to execute a bioimaging method, which includes filling an imaging range of an imaging means with liquid, using the liquid to guide a position for placing the bioimaging body, and imaging the bioimaging body as guided. [Brief description of the drawings]

[0009] [Figure 1] 1 is a block diagram showing a hardware configuration of a biological image capturing system according to a first embodiment. [Diagram 2] 1 is a block diagram showing a functional configuration of a biological image capturing system according to a first embodiment. [Diagram 3] 4 is a flowchart showing the flow of operations of the biological image capturing system according to the first embodiment. [Figure 4] 11 is a side view showing the configuration and operation of a biological image capturing system according to a second embodiment. FIG. [Diagram 5] 13 is a top view showing an example of a mark on a container in a biological image capturing system according to a second embodiment. FIG. [Figure 6] FIG. 11 is a plan view showing a display example of a biological image capturing system according to a second embodiment. [Figure 7] 13 is a side view showing the configuration and operation of a biological image capturing system according to a third embodiment. FIG. [Figure 8]13 is a side view showing the configuration and operation of a biological image capturing system according to a fourth embodiment. FIG. [Figure 9] 13 is a side view showing the configuration and operation of a biological image capturing system according to a fifth embodiment. FIG. [Figure 10] 13 is a side view showing the configuration and operation of a biometric image capturing system according to a sixth embodiment. FIG. [Figure 11] FIG. 13 is a side view showing the configuration and operation of a biological image capturing system according to a seventh embodiment. [Figure 12] FIG. 13 is a side view showing the configuration and operation of a biological image capturing system according to an eighth embodiment. [Figure 13] FIG. 13 is a side view showing the configuration and operation of a biological image capturing system according to a ninth embodiment. [Figure 14] FIG. 23 is a block diagram showing the functional configuration of a biological image capturing system according to a tenth embodiment. [Figure 15] FIG. 23 is a side view showing the configuration and operation of a biometric image capture system according to an eleventh embodiment. [Figure 16] 16A to 16C are cross-sectional views showing the configuration and operation of a biological image pickup system according to an eleventh embodiment. [Figure 17] FIG. 23 is a side view showing the configuration and operation of a biological image capturing system according to a twelfth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, embodiments of a biometric image capturing system, a biometric image capturing device, a biometric image capturing method, and a recording medium will be described with reference to the drawings.

[0011] First Embodiment A biological imaging system according to a first embodiment will be described with reference to FIGS. 1 to 3. FIG.

[0012] (Hardware configuration) First, the hardware configuration of the biometric image pickup system according to the first embodiment will be described with reference to Fig. 1. Fig. 1 is a block diagram showing the hardware configuration of the biometric image pickup system according to the first embodiment.

[0013] 1, a biometric image pickup system 10 according to the first embodiment includes a processor 11, a RAM (Random Access Memory) 12, a ROM (Read Only Memory) 13, and a storage device 14. The biometric image pickup system 10 may further include an input device 15 and an output device 16. The biometric image pickup system 10 may also include a camera 18 and a drive device 19. The processor 11, RAM 12, ROM 13, storage device 14, input device 15, output device 16, camera 18, and drive device 19 are connected to each other via a data bus 17.

[0014] The processor 11 reads a computer program. For example, the processor 11 is configured to read a computer program stored in at least one of the RAM 12, the ROM 13, and the storage device 14. Alternatively, the processor 11 may read a computer program stored in a computer-readable recording medium using a recording medium reading device (not shown). The processor 11 may obtain (i.e., read) a computer program from a device (not shown) disposed outside the biometric imaging system 10 via a network interface. The processor 11 controls the RAM 12, the storage device 14, the input device 15, and the output device 16 by executing the computer program that the processor 11 reads. In particular, in this embodiment, when the processor 11 executes the computer program that the processor 11 reads, a functional block for guiding the position of the biometric body and capturing an image is realized in the processor 11.

[0015] The processor 11 may be configured as, for example, a central processing unit (CPU), a graphics processing unit (GPU), a field-programmable gate array (FPGA), a demand-side platform (DSP), or an application specific integrated circuit (ASIC). The processor 11 may be configured as one of these, or may be configured to use a plurality of these in parallel.

[0016] The RAM 12 temporarily stores a computer program executed by the processor 11. The RAM 12 temporarily stores data that is temporarily used by the processor 11 when the processor 11 is executing the computer program. The RAM 12 may be, for example, a D-RAM (Dynamic RAM).

[0017] The ROM 13 stores computer programs executed by the processor 11. The ROM 13 may also store other fixed data. The ROM 13 may be, for example, a programmable ROM (P-ROM).

[0018] The storage device 14 stores data to be stored long-term by the biometric imaging system 10. The storage device 14 may operate as a temporary storage device for the processor 11. The storage device 14 may include, for example, at least one of a hard disk device, a magneto-optical disk device, an SSD (Solid State Drive), and a disk array device.

[0019] The input device 15 is a device that receives an input instruction from a user of the biometric image capturing system 10. The input device 15 may include, for example, at least one of a keyboard, a mouse, and a touch panel. The input device 15 may be configured as a mobile terminal such as a smartphone or a tablet.

[0020] The output device 16 is a device that outputs information related to the biometric image capture system 10 to the outside. For example, the output device 16 may be a display device (e.g., a display) capable of displaying information related to the biometric image capture system 10. The output device 16 may also be a speaker or the like capable of outputting the information related to the biometric image capture system 10 as audio. The output device 16 may be configured as a mobile terminal such as a smartphone or a tablet.

[0021] Camera 18 is a camera capable of capturing images of a living body (for example, images of fingerprints (epidermis and dermis), palm patterns, veins, etc.). The living body here is not limited to humans, but may include animals such as dogs and snakes. Camera 18 may be a camera that captures still images, or may be a camera that captures videos. Camera 18 may be configured as a visible light camera, or may be configured as a near-infrared camera. Camera 18 may also be configured as an optical scanner.

[0022] The driving device 19 is a device that drives each part of the biometric imaging system 10. The operation of the driving device 19 may be controlled by, for example, the processor 11. The driving device 19 may be configured to include, for example, an actuator. Furthermore, the driving device 19 according to this embodiment may particularly have a function of filling with liquid. In this case, the driving device 19 may include a housing, a cover, a container, etc. that form an area to be filled with liquid. Furthermore, the driving device 19 according to this embodiment may be configured to be capable of driving a guide operation using liquid (described in detail later) and a device for performing an operation associated therewith (for example, a light source, a blower, etc.).

[0023] 1 shows an example of a biometric imaging system 10 including a plurality of devices, but all or a part of the functions may be realized by a single device (biometric imaging device). The biometric imaging device may be configured to include only the above-mentioned processor 11, RAM 12, and ROM 13, and the other components (i.e., the storage device 14, the input device 15, the output device 16, the camera 18, and the drive device 19) may be included in an external device connected to the biometric imaging device. Also, some of the calculation functions of the biometric imaging device may be realized by an external device (e.g., an external server, a cloud, etc.).

[0024] (Functional configuration) Next, the functional configuration of the biometric image pickup system 10 according to the first embodiment will be described with reference to Fig. 2. Fig. 2 is a block diagram showing the functional configuration of the biometric image pickup system according to the first embodiment.

[0025] 2, the biometric imaging system 10 according to the first embodiment is configured as a system for capturing an image of a living body. The biometric imaging system 10 may be configured as a system for capturing an image used for biometric authentication, for example. The biometric imaging system 10 includes a liquid filling unit 110, a biometric guide unit 120, and an imaging unit 130 as components for realizing the functions of the biometric imaging system 10.

[0026] The liquid filling section 110 is configured to include, for example, the above-mentioned drive device 19 (see FIG. 1), and is configured to be able to fill the imaging range of the imaging section 130 with liquid. The liquid filling section 110 may fill the imaging range of the imaging section 130 with liquid so as to cover the entire imaging range, or may fill the imaging range with liquid so as to cover only a part of the imaging range. The liquid filled by the liquid filling section 110 is, for example, water or alcohol, which is safe even if it comes into contact with a living body. The method of filling the liquid by the liquid filling section 110 will be specifically described in another embodiment described later.

[0027] The living body guidance unit 120 is configured to include, for example, the above-mentioned drive device 19 (see FIG. 1), and is configured to be able to guide a position to place a living body (i.e., an imaging target) using the liquid filled by the liquid filling unit 110. Specifically, the living body guidance unit 120 is configured to be able to guide the living body to a location suitable for imaging by the imaging unit 130. The guidance method by the living body guidance unit 120 will be specifically described in another embodiment described later.

[0028] The imaging unit 130 is configured to include, for example, the above-mentioned camera 18 (see FIG. 1), and is configured to be able to capture an image of a living body guided by the living body guide unit 120. The imaging unit 130 has, for example, a fixed imaging range, and is configured to be able to capture an image of a living body guided within the imaging range by the living body guide unit 120. The imaging unit 130 may be configured as, for example, a non-contact type fingerprint scanner, palm print scanner, or vein scanner. In the following, an example in which the imaging unit 130 is configured as a fingerprint scanner will be given as an example (although in other embodiments described later, an example in which the imaging unit 130 is configured as a fingerprint scanner will also be described, the configuration of the imaging unit 130 is not limited to a fingerprint scanner).

[0029] (Operation flow) Next, the flow of operations of the biometric image pickup system 10 according to the first embodiment will be described with reference to Fig. 3. Fig. 3 is a flowchart showing the flow of operations of the biometric image pickup system according to the first embodiment.

[0030] As shown in FIG. 3, when the biometric imaging system 10 according to the first embodiment operates, first, it is determined whether or not to start imaging of a biometric body (step S101). Whether or not to start imaging may be determined, for example, according to an operation by a user. For example, when a user presses a button to start imaging, it may be determined that imaging is to start. Alternatively, it may be determined whether or not to start imaging by detecting the presence of a biometric body to be imaged. For example, when a sensor or the like provided in the device detects the approach of a user, it may be determined that imaging is to start. If it is determined that imaging is not to start (step S101: NO), the subsequent processing is performed and the series of operations ends.

[0031] On the other hand, when it is determined that imaging should be started (step S102: YES), the liquid filling unit 110 fills the imaging range of the imaging unit 130 with liquid (step S102). The liquid filling unit 110 may start filling with liquid before it is determined that imaging should be started. For example, when imaging is performed relatively frequently, the liquid may be filled in advance. Alternatively, in order to complete filling with liquid early, the liquid may be preliminarily filled (for example, half the amount may be filled in advance).

[0032] Next, the living body guide unit 120 uses the liquid filled by the liquid filling unit 110 to guide the position where the living body is placed (step S103). After that, the imaging unit 130 images the living body guided by the living body guide unit 120 (step S104). Note that the imaging unit 130 may image the same living body multiple times.

[0033] (Technical effect) Next, technical effects obtained by the biometric image pickup system 10 according to the first embodiment will be described.

[0034] As described in Fig. 1 to Fig. 3, in the biometric imaging system 10 according to the first embodiment, the imaging range of the imaging unit 130 is filled with liquid, and the position of the biometric organism is guided using the liquid. In this way, it is possible to guide the biometric organism, which is the imaging target, to a position suitable for imaging and capture an image of the biometric organism. Such a technical effect is particularly effective in cases where the range in which the imaging unit 130 can capture a suitable image is narrow (for example, the focal range or the viewing angle is narrow). It is also particularly effective in cases where it is difficult to convey the position of the biometric organism (for example, when it is required to place the biometric organism in a space of a predetermined range in order to capture the image with a non-contact scanner).

[0035] <Second embodiment> A biological imaging system 10 according to the second embodiment will be described with reference to Figs. 4 to 6. The second embodiment differs from the first embodiment described above only in some configurations and operations, and other parts may be the same as those of the first embodiment. Therefore, hereinafter, parts that differ from the first embodiment already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0036] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the second embodiment will be described with reference to Fig. 4 and Fig. 5. Fig. 4 is a side view showing the configuration and operation of the biometric image pickup system according to the second embodiment. Fig. 5 is a top view showing an example of a mark on a container in the biometric image pickup system according to the second embodiment.

[0037] As shown in Fig. 4, in the biological imaging system 10 according to the second embodiment, a liquid filling section 110 (see Fig. 2) is configured with a container 20 that stores liquid 30. The container 20 is made of, for example, transparent resin or glass, and a camera 18 disposed below the container 20 is configured to be able to capture images through the container 20 and the liquid 30. The container 20 may also have a function of maintaining a constant temperature of the filled liquid 30.

[0038] The biological body guidance unit 120 is configured to be able to guide the position at which the biological body is placed according to the amount of liquid 30 stored in the container 20. Specifically, the biological body guidance unit 120 determines the amount of liquid 30 to be stored in the container 20 (in other words, the height of the liquid surface), and guides the position at which the biological body is placed according to the liquid surface. For example, when capturing an image of a fingerprint, if the finger 50 is immersed in the liquid surface as shown in FIG. 4, the position allows an appropriate image to be captured. The amount of liquid 30 may be set according to the imaging range and installation position of the camera 18, the camera parameters, and the like. Alternatively, the camera parameters may be adjusted according to the amount of liquid 30.

[0039] As shown in Fig. 5, the container 20 may be provided with a mark for guiding the lateral (horizontal) position of the finger 50. Specifically, as shown in Fig. 5(a), a frame line indicating the inside and outside of the imaging range may be provided on the bottom of the container 20. Alternatively, as shown in Fig. 5(b), a frame line showing the outline of the finger may be provided. These marks are provided at positions where the finger 50 is within the imaging range of the camera 18 when the finger is placed within the frame line. Also, the marks themselves are arranged so as not to interfere with imaging.

[0040] (Example of display when guiding) Next, a display example when guidance is provided by the biometric image capture system 10 according to the second embodiment will be described with reference to Fig. 6. Fig. 6 is a plan view showing a display example by the biometric image capture system according to the second embodiment.

[0041] As shown in FIG. 6, in the biometric imaging system 10 according to the second embodiment, a display may be performed to prompt the user to dip the finger 50 into the liquid 30. Specifically, as shown in FIG. 6(a), a message may be displayed saying "Please put your fingertip on the liquid surface." After the finger 50 is actually placed, a further message may be displayed according to the placement position. For example, if the height of the finger 50 is too high (if the finger 50 is placed on the liquid surface shallower than expected), a message may be displayed saying "Please put your finger a little deeper" as shown in FIG. 6(b). If the height of the finger 50 is too low (if the finger 50 is placed on the liquid surface deeper than expected), a message may be displayed saying "Please put your finger a little shallower." If the height of the finger 50 is appropriate, a message such as "Please keep it at that height" may be displayed. Such a display may be performed by, for example, a display provided in the output device 16.

[0042] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the second embodiment will be described.

[0043] 4 to 6, in the living body imaging system 10 according to the second embodiment, the position for placing the living body is guided by storing the liquid 30 in the container 20. In this way, it is possible to appropriately capture an image of the living body while avoiding contact between the living body and various devices such as the camera 18.

[0044] <Third embodiment> A biometric imaging system 10 according to the third embodiment will be described with reference to Fig. 7. The third embodiment differs from the first and second embodiments in some configurations and operations, and other parts may be the same as the above-mentioned embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0045] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the third embodiment will be described with reference to Fig. 7. Fig. 7 is a side view showing the configuration and operation of a biometric image pickup system according to the third embodiment. In Fig. 7, the same reference numerals are used to designate the same components as those shown in Fig. 4.

[0046] The biological imaging system 10 according to the third embodiment is configured to be capable of discharging the liquid 30 stored in the container 20 after guiding the position for placing the biological body. The liquid 30 may be discharged when the guidance is completed (for example, when the finger 50 is placed in an appropriate position). Alternatively, the liquid 30 may be discharged when imaging of the image is completed.

[0047] 7, the biological imaging system 10 according to the third embodiment is configured to include a discharge drive unit 25 for discharging the liquid 30 stored in the container 20. Specifically, the discharge drive unit 25 is configured to be movable within the container 20, and can push out the liquid 30 stored in the container 20 by moving. An example of driving the discharge drive unit 25 will be described below.

[0048] 7(a), when liquid 30 is stored in container 20, discharge drive unit 25 is disposed on the edge of container 20. In this case, discharge drive unit 25 may be disposed on the edge on the opposite side to inlet 21 for injecting liquid 30 so as not to hinder the storage of liquid 30 in container 20.

[0049] As shown in Fig. 7(b), when discharging liquid 30 from container 20, discharge port 22 at the bottom of container 20 opens. Then, discharge drive unit 25 moves inside container 20 toward discharge port 22. By such an operation, liquid 30 stored in container 20 is discharged from discharge port 22.

[0050] It should be noted that the above-mentioned example is merely an example, and the discharge of the liquid 30 may be achieved by other configurations.

[0051] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the third embodiment will be described.

[0052] As described in Fig. 7, in the living body imaging system 10 according to the third embodiment, the liquid 30 stored in the container 20 is discharged after guiding the position for placing the living body. In this way, the container 20 can be kept clean. Even if multiple users use the same container 20, the liquid 30 in the container 20 is replaced every time an image is captured, so guidance can be provided in a clean state.

[0053] <Fourth embodiment> A biometric imaging system 10 according to the fourth embodiment will be described with reference to Fig. 8. The fourth embodiment differs from the first embodiment in some configurations and operations, and other parts may be the same as the above-mentioned embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0054] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the fourth embodiment will be described with reference to Fig. 8. Fig. 8 is a side view showing the configuration and operation of a biometric image pickup system according to the fourth embodiment. In Fig. 8, the same reference numerals are used to designate the same components as those shown in Fig. 4.

[0055] As shown in Fig. 8, in the biological imaging system 10 according to the fourth embodiment, a liquid filling unit 110 (see Fig. 2) is configured to be capable of filling the imaging range of a camera 18 with a mist 40 (i.e., a mist-like liquid). Also, a biological guidance unit 120 (see Fig. 2) is configured to include a light source 60. The light source 60 irradiates the mist 40 with a guide light 70, thereby guiding the position at which the biological organism should be placed.

[0056] For example, two light sources 60 are provided, and each of the two light sources 60 irradiates a guide light 70 toward the area filled with the mist 40. These two guide lights 70 are arranged to intersect at the position where the living body is placed. Therefore, when capturing an image of a fingerprint, the finger 50 is placed at the portion where the guide lights 70 intersect.

[0057] The above-mentioned arrangement of the light sources 60 is merely an example, and for example, one light source 60 may be used to guide the position at which the living body is placed. Alternatively, three or more light sources 60 may be used to guide the position at which the living body is placed.

[0058] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the fourth embodiment will be described.

[0059] 8, in the living body imaging system 10 according to the fourth embodiment, the position for placing the living body is guided by irradiating the mist 40 with the guide light 70. In this way, it is possible to appropriately capture an image of the living body while avoiding contact between the living body and various devices such as the camera 18.

[0060] <Fifth embodiment> A biological imaging system 10 according to a fifth embodiment will be described with reference to Fig. 9. The fifth embodiment differs from the fourth embodiment only in some configurations and operations, and other parts may be the same as the above-mentioned embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0061] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the fifth embodiment will be described with reference to Fig. 9. Fig. 9 is a side view showing the configuration and operation of a biometric image pickup system according to the fifth embodiment. In Fig. 9, the same reference numerals are used to designate the same components as those shown in Fig. 8.

[0062] 9, the biometric image capturing system 10 according to the fifth embodiment is configured such that the first light source 61 emits a first guide light 71, and the second light source 62 emits a second guide light 72. The first guide light 71 is visible light with a first wavelength. The second guide light 72 is visible light with a second wavelength different from the first wavelength. In other words, the first guide light 71 and the second guide light 72 are guide lights having different colors.

[0063] The first guide light 71 and the second guide light 72 are arranged to intersect at the position where the living body is placed, similarly to the fourth embodiment already described. At an intersection 75 where the first guide light 71 and the second guide light 72 intersect, the color changes due to the difference in wavelength between the first guide light 71 and the second guide light 72 (i.e., the color becomes different from both the first guide light 71 and the second guide light 72).

[0064] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the fifth embodiment will be described.

[0065] 9, in the biometric image capturing system 10 according to the fifth embodiment, the first guide light 71 and the second guide light 72 having different wavelengths are irradiated, and thereby the color of the intersection of the first guide light 71 and the second guide light 72 changes. In this way, the change in color allows the user to easily grasp the position where the biometric image is to be placed.

[0066] Sixth Embodiment A biometric imaging system 10 according to the sixth embodiment will be described with reference to Fig. 10. The sixth embodiment differs from the fourth and fifth embodiments in some configurations and operations, and other parts may be the same as the above-mentioned embodiments. Therefore, the following will describe in detail the parts that differ from the embodiments already described, and will omit the description of other overlapping parts as appropriate.

[0067] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the sixth embodiment will be described with reference to Fig. 10. Fig. 10 is a side view showing the configuration and operation of a biometric image pickup system according to the sixth embodiment. In Fig. 10, the same reference numerals are used to designate the same components as those shown in Fig. 8.

[0068] As shown in Fig. 10, the biometric imaging system 10 according to the sixth embodiment is configured to further include a blower tube 80 in addition to the configuration of the fourth embodiment (see Fig. 8). The blower tube 80 is disposed between the camera 18 and the area filled with the mist 40. The blower tube 80 may be provided, for example, so as to be in contact with the camera 18. The blower tube is configured to be able to blow air so that the mist 40 does not adhere to the camera 18. For example, the blower tube 80 is configured to include a blower inside or outside it.

[0069] Inside the blower tube 80, air is blown from the bottom to the top (i.e., from the camera 18 side to the mist 40 side). The blower tube 80 is configured so that its diameter increases toward the top. By shaping the blower tube 80 in this way, a vortex is generated inside. The wind coming out of the blower tube 80 may be configured to flow toward the bottom (i.e., in a direction different from that of the mist 40) so as not to diffuse the mist 40.

[0070] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the sixth embodiment will be described.

[0071] 10, in the biometric imaging system 10 according to the sixth embodiment, air is blown from the camera 18 toward the mist 40. This can prevent the mist 40 from adhering to the camera 18. This can prevent the camera 18 from being unable to properly capture an image of the biometric organism due to the mist 40 adhering to the camera 18.

[0072] Seventh embodiment A biometric imaging system 10 according to the seventh embodiment will be described with reference to Fig. 11. The seventh embodiment differs from the fourth to sixth embodiments in some configurations and operations, and other parts may be the same as the above-mentioned embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0073] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the seventh embodiment will be described with reference to Fig. 11. Fig. 11 is a side view showing the configuration and operation of a biometric image pickup system according to the seventh embodiment. In Fig. 11, the same elements as those shown in Fig. 8 are denoted by the same reference numerals. In Fig. 11, for the sake of convenience, the components shown in Fig. 8 that are less related to this embodiment are omitted from the illustration.

[0074] As shown in Fig. 11, the biological image pickup system 10 according to the seventh embodiment is configured to further include a dry air blower 90 in addition to the configuration of the fourth embodiment (see Fig. 8). The dry air blower 90 is configured to be capable of blowing hot air toward the area filled with the mist 40. The dry air blower 90 may be the same as or different from the blower included in the blower tube 70 described in the sixth embodiment.

[0075] After guiding the position for placing the living body, the dry blower 90 blows hot air to dry (or blow away) the mist 40. The dry blower 90 may blow hot air when the guidance is completed (for example, when the finger 50 is placed in an appropriate position). Alternatively, the dry blower 90 may blow hot air when image capture is completed. The dry blower 90 may be configured to automatically stop blowing hot air after blowing hot air for a predetermined period of time, for example.

[0076] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the seventh embodiment will be described.

[0077] 11, in the living body imaging system 10 according to the seventh embodiment, after the position for placing the living body is guided, hot air is blown toward the mist 40. In this way, the mist 40 used for guiding the living body can be removed from the filled area. Also, the mist 40 attached to the living body can be removed.

[0078] Eighth embodiment A biometric imaging system 10 according to an eighth embodiment will be described with reference to Fig. 12. The eighth embodiment differs from the first to seventh embodiments in some configurations and operations, and other parts may be the same as the above-described embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0079] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the eighth embodiment will be described with reference to Fig. 12. Fig. 12 is a side view showing the configuration and operation of a biometric image pickup system according to the eighth embodiment. In Fig. 12, the same elements as those shown in Figs. 4 and 8 are denoted by the same reference numerals. In Fig. 12, for the sake of convenience, the components shown in Figs. 4 and 8 that are less related to this embodiment are omitted from the illustration.

[0080] 12, in the biometric image capturing system 10 according to the eighth embodiment, the member above the position where the finger 50 is placed is configured as a magic mirror 210. This magic mirror 210 is configured to transmit light from below but not transmit light from above. Therefore, the state below (for example, the position of the finger 50) can be viewed from above through the magic mirror 210. On the other hand, light from above does not reach the lower side of the magic mirror 210 (i.e., the camera 18 side).

[0081] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the eighth embodiment will be described.

[0082] 12, in the biometric imaging system 10 according to the eighth embodiment, even if a member is present above the position where the biometric organism is to be placed (i.e., closer to the user's eyes), the user can visually confirm the position of the biometric organism. This makes it easier to place the biometric organism compared to a case where the position of the biometric organism cannot be visually confirmed. In addition, since light from above is not transmitted, external light, etc. does not affect the imaging by the camera 18.

[0083] <Ninth embodiment> A biometric imaging system 10 according to the ninth embodiment will be described with reference to Fig. 13. The ninth embodiment differs from the first to eighth embodiments in some configurations and operations, and other parts may be the same as the above-mentioned embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0084] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the ninth embodiment will be described with reference to Fig. 13. Fig. 13 is a side view showing the configuration and operation of a biometric image pickup system according to the ninth embodiment. In Fig. 13, the same elements as those shown in Figs. 4 and 8 are denoted by the same reference numerals. In Fig. 13, for the sake of convenience, the components shown in Figs. 4 and 8 that are less related to this embodiment are omitted from the illustration.

[0085] As shown in Fig. 13, the biometric image capturing system 10 according to the ninth embodiment includes an upper surface member 221 and a lower surface member 222. A fingerprint image is captured by guiding a finger 50 between the upper surface member 221 and the lower surface member 222. For example, a user inserts the finger 50 from the entrance on the right side of the figure, and then slides it sideways until the finger 50 stops within the capturing range of the camera 18. Then, when the capturing is completed, the finger 50 is slid again to take out the finger 50 from the exit on the left side of the figure.

[0086] Here, particularly in this embodiment, fans 230 are provided at the entrance and the exit. The fans 230 are configured to be able to blow air toward the finger 50. Specifically, the fan 230 on the entrance side blows air toward the finger 50 when it passes through the entrance. Also, the fan 230 on the exit side blows air toward the finger 50 when it passes through the exit. The fan 230 may blow air at all times, or may blow air upon detecting the presence of the finger 50.

[0087] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the ninth embodiment will be described.

[0088] 13, in the biometric image capturing system 10 according to the ninth embodiment, air is blown to the biometric body by the air blower 230. In this way, it is possible to blow away dirt or wetness on the finger before and after capturing an image.

[0089] Tenth embodiment A biometric imaging system 10 according to the tenth embodiment will be described with reference to Fig. 14. The tenth embodiment differs from the first to ninth embodiments in some configurations and operations, and other parts may be the same as the above-described embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0090] (Functional configuration) First, the functional configuration of the biometric image pickup system 10 according to the tenth embodiment will be described with reference to Fig. 14. Fig. 14 is a block diagram showing the functional configuration of the biometric image pickup system according to the tenth embodiment. In Fig. 14, the same reference numerals are used to designate the same components as those shown in Fig. 2.

[0091] As shown in Fig. 14, the biometric image pickup system 10 according to the tenth embodiment is configured to include, as components for realizing its functions, a liquid filling unit 110, a biometric guide unit 120, an image pickup unit 130, a target information acquisition unit 140, and a processing execution unit 150. That is, the biometric image pickup system 10 according to the tenth embodiment is configured to further include the target information acquisition unit 140 and the processing execution unit 150 in addition to the configuration of the first embodiment (see Fig. 2). The target information acquisition unit 140 and the processing execution unit 150 may be processing blocks realized by the above-mentioned processor 11 (see Fig. 1).

[0092] The target information acquisition unit 140 is configured to be able to acquire information about a user (hereinafter, appropriately referred to as "target information") from the user who captures an image of the living body. The target information acquisition unit 140 is configured to be able to acquire the target information from, for example, a mobile terminal such as a smartphone, a wearable terminal, or a card. The target information acquisition unit 140 may acquire the target information at the timing of capturing an image of the living body. Alternatively, the target information acquisition unit 140 may acquire the target information before or after capturing an image of the living body. The target information may be, for example, information for identifying the user. The target information acquired by the target information acquisition unit 140 is configured to be output to the processing execution unit 150.

[0093] The process execution unit 150 is configured to be able to execute various processes based on the biometric image captured by the imaging unit 130. The process execution unit 150 may be configured to be able to execute, for example, an authentication process using a biometric image. The process execution unit 150 may be configured to execute a payment process by a payment method associated with an authenticated user in addition to the authentication process. The process execution unit 150 according to this embodiment particularly uses the target information acquired by the target information acquisition unit 140 in addition to the biometric image captured by the imaging unit 130. For example, when the process execution unit 150 executes the authentication process, the authentication process may be a two-step authentication process including an authentication process using a biometric image and an authentication process using target information.

[0094] (Technical effect) Next, technical effects obtained by the biometric image pickup system 10 according to the tenth embodiment will be described.

[0095] 14, in the biometric image capturing system 10 according to the tenth embodiment, the target information acquired by the target information acquisition unit 140 is used in the process executed by the process execution unit 150. In this way, the process executed by the process execution unit 150 can be executed more appropriately than when the target information is not used. For example, the accuracy of determining the identity of the user can be improved, thereby enhancing the security of the process.

[0096] <Eleventh embodiment> A biometric imaging system 10 according to an eleventh embodiment will be described with reference to Fig. 15 and Fig. 16. The eleventh embodiment describes a specific configuration example of the tenth embodiment described above, and other parts may be the same as those of the above-mentioned embodiments. Therefore, in the following, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0097] (Configuration and operation) First, the configuration and operation of a biometric imaging system 10 according to the 11th embodiment will be described with reference to Figs. 15 and 16. Fig. 15 is a side view showing the configuration and operation of a biometric imaging system according to the 11th embodiment. Fig. 16 is a cross-sectional view showing the configuration and operation of a biometric imaging system according to the 11th embodiment. In Figs. 15 and 16, the same elements as those shown in Figs. 4 and 8 are denoted by the same reference numerals. In Figs. 15 and 16, for the sake of convenience, the components shown in Figs. 4 and 8 that are less related to this embodiment are omitted from the illustration.

[0098] 15 and 16, the biometric image capturing system 10 according to the eleventh embodiment includes a fingerprint scan surface 250 that scans a user's finger 50 to capture a fingerprint image, and a card scan surface 260 that acquires target information from a card 300 held by the user. For example, the user may hold the card 300 between the thumb and index finger and over the card scan surface 260, while also holding the middle finger, ring finger, and little finger over the fingerprint scan surface 250.

[0099] (Technical effect) Next, technical effects obtained by the biometric image pickup system 10 according to the eleventh embodiment will be described.

[0100] As described with reference to FIGS. 15 and 16, the living body image capturing system 10 according to the eleventh embodiment can capture an image of a living body and simultaneously acquire target information.

[0101] <Twelfth embodiment> A biometric imaging system 10 according to the twelfth embodiment will be described with reference to Fig. 17. The twelfth embodiment differs from the first to eleventh embodiments in some configurations and operations, and other parts may be the same as the above-mentioned embodiments. Therefore, hereinafter, parts that differ from the embodiments already described will be described in detail, and other overlapping parts will be omitted as appropriate.

[0102] (Configuration and operation) First, the configuration and operation of a biometric image pickup system 10 according to the twelfth embodiment will be described with reference to Fig. 17. Fig. 17 is a side view showing the configuration and operation of a biometric image pickup system according to the twelfth embodiment. In Fig. 17, the same elements as those shown in Figs. 4 and 8 are denoted by the same reference numerals. In Fig. 17, for the sake of convenience, the components shown in Figs. 4 and 8 that are less related to this embodiment are omitted from the illustration.

[0103] 17, the biometric image capturing system 10 according to the 12th embodiment includes an upper surface member 271 and a lower surface member 272, similar to the above-described ninth embodiment. A fingerprint image is captured by guiding a finger 50 between the upper surface member 271 and the lower surface member 272.

[0104] Here, particularly in this embodiment, wind is blown downward from the upper surface member 271. Meanwhile, wind is blown upward from the lower surface member 272. At this time, the wind from the upper surface member 271 and the wind from the lower surface member 272 are set to have approximately the same strength. Therefore, when finger 50 is placed between the upper surface member 271 and the lower surface member 272, the force of the wind will position finger 50 exactly in the vicinity of the middle between the upper surface member 271 and the lower surface member 272 (i.e., at the height where the wind hits). Then, in this embodiment, the position where finger 50 is positioned in this way is a position suitable for imaging by camera 18.

[0105] The upper surface member 271 and the lower surface member 272 may constantly blow air, or may blow air only when the finger 50 is detected. The wind from the upper surface member 271 and the wind from the lower surface member 272 do not always need to be of the same strength, and may be blown with different strengths depending on the situation. For example, if it is desired to place the finger 50 in a slightly higher position, the air blown from above may be made weaker and the air blown from below may be made stronger. Similarly, if it is desired to place the finger 50 in a slightly lower position, the air blown from above may be made stronger and the air blown from below may be made weaker.

[0106] (Technical effect) Next, technical effects obtained by the biological image pickup system 10 according to the twelfth embodiment will be described.

[0107] As described in Fig. 17, in the living body imaging system 10 according to the 12th embodiment, in addition to guidance using the filled liquid, guidance using wind is performed. Therefore, compared to guidance using only the filled liquid, it is possible to more appropriately guide the position where the living body should be placed. In addition, by blowing wind, it is also possible to blow away dirt and wetness on the living body.

[0108] The scope of each embodiment also includes a processing method in which a program that operates the configuration of each embodiment to realize the functions of the above-mentioned embodiments is recorded on a recording medium, the program recorded on the recording medium is read as code, and the program is executed on a computer. That is, a computer-readable recording medium is also included in the scope of each embodiment. Furthermore, not only the recording medium on which the above-mentioned program is recorded, but also the program itself is included in each embodiment.

[0109] Examples of recording media that can be used include floppy disks, hard disks, optical disks, magneto-optical disks, CD-ROMs, magnetic tapes, non-volatile memory cards, and ROMs. In addition, the scope of each embodiment is not limited to programs recorded on the recording media that execute processes by themselves, but also includes programs that operate on an OS in cooperation with other software and functions of an extension board to execute processes. Furthermore, the program itself may be stored in a server, and part or all of the program may be downloaded from the server to a user terminal.

[0110] <Additional Notes> The above-described embodiment may be further described as follows, but is not limited to the following.

[0111] (Appendix 1) The biometric imaging system described in Appendix 1 is a biometric imaging system comprising an imaging means for imaging a biometric body present within an imaging range, a filling means for filling the imaging range with liquid, and a guiding means for using the liquid to guide the biometric body to a position to place the biometric body.

[0112] (Appendix 2) The bioimaging system described in Appendix 2 is the bioimaging system described in Appendix 1, wherein the filling means has a container for storing the liquid, and the guiding means guides the position for placing the bioimaging body based on the amount of liquid stored in the container.

[0113] (Appendix 3) The biometric imaging system according to claim 3 is the biometric imaging system according to claim 2, further comprising a discharge control means for discharging the liquid in the container after the guiding means has finished guiding.

[0114] (Appendix 4) The biometric imaging system described in Appendix 4 is the biometric imaging system described in Appendix 1, wherein the filling means fills the liquid in a mist, and the guiding means guides the position for placing the biometric organism by irradiating the liquid in a mist with a guide light.

[0115] (Appendix 5) The biometric imaging system described in Appendix 5 is the biometric imaging system described in Appendix 4, wherein the guide means irradiates a first guide light, which is visible light of a first wavelength, and a second guide light, which is visible light of a second wavelength different from the first wavelength, so that they intersect at a position where the biometric system is placed.

[0116] (Appendix 6) The biometric imaging system described in Appendix 6 is the biometric imaging system described in Appendix 4 or 5, further comprising an air blowing means arranged between the imaging means and an area filled with the mist of the liquid, and blowing air to prevent the mist of the liquid from adhering to the imaging means.

[0117] (Appendix 7) The biometric imaging system described in Appendix 7 is the biometric imaging system described in any one of Appendixes 4 to 6, further comprising a drying means for blowing warm air to dry the mist of the liquid after guidance by the guidance means has been completed.

[0118] (Appendix 8) The biometric imaging device described in Appendix 8 is a biometric imaging device comprising an imaging means for imaging a biometric body present within an imaging range, a filling means for filling the imaging range with liquid, and a guiding means for using the liquid to guide the position at which the biometric body is to be placed.

[0119] (Appendix 9) The biometric imaging method described in Appendix 9 is a biometric imaging method executed by at least one computer, which includes filling an imaging range of an imaging means with liquid, using the liquid to guide a position for placing the biometric organism, and imaging the biometric organism as guided.

[0120] (Appendix 10) The recording medium described in Appendix 10 is a recording medium having recorded thereon a computer program for causing at least one computer to execute a biometric imaging method, which includes filling an imaging range of an imaging means with liquid, using the liquid to guide a position for placing the biometric organism, and imaging the biometric organism as guided.

[0121] (Appendix 11) The computer program described in Appendix 11 is a computer program that causes at least one computer to execute a biometric imaging method, which includes filling an imaging range of an imaging means with liquid, using the liquid to guide a position for placing the biometric organism, and imaging the guided biometric organism.

[0122] This disclosure may be modified as appropriate within the scope that does not contradict the gist or concept of the invention that can be read from the claims and the entire specification, and bioimaging systems, bioimaging devices, bioimaging methods, and recording media incorporating such modifications are also included in the technical concept of this disclosure. [Explanation of symbols]

[0123] 10. Biometric Imaging System 11 Processors 18 Camera 19 Drive unit 20 containers 25 Discharge drive unit 30 liquid 40 Mist 50 fingers 60 light source 61 1st light source 62 Second light source 70 Guiding Light 71 First guide light 72 Second guide light 75 Intersection 80 Blower tube 90 Drying fan 110 Liquid filling section 120 Biological Information Department 130 Imaging unit 140 Target information acquisition unit 150 Processing Execution Unit 210 Magic Mirror 221 Top member 222 Lower surface member 230 Blower 250 Fingerprint Scan Surface 260 Card Scan Surface 271 Top member 272 Bottom member 300 Cards

Claims

1. An imaging means for imaging a living body present within an imaging range; A filling means for filling a liquid into the imaging range; a guide means for guiding a position for placing the living body using the liquid; A biological imaging system comprising:

2. The filling means includes a container for storing the liquid, The guide means guides a position for placing the living body according to the amount of the liquid stored in the container. The biometric imaging system of claim 1 .

3. The biometric imaging system according to claim 2 , further comprising a discharge control unit for discharging the liquid in the container after the guiding unit has finished guiding.

4. The filling means fills the liquid in a mist form, The guiding means guides the position at which the living body is placed by irradiating the mist of the liquid with a guide light. The biometric imaging system of claim 1 .

5. 5. The biometric imaging system according to claim 4, wherein the guide means irradiates a first guide light, which is visible light of a first wavelength, and a second guide light, which is visible light of a second wavelength different from the first wavelength, so that the first guide light and the second guide light intersect at a position where the biometric device is to be placed.

6. 6. The biological imaging system according to claim 4, further comprising a blower arranged between the imaging means and an area filled with the mist of the liquid, for blowing air to prevent the mist of the liquid from adhering to the imaging means.

7. The liquid supply device further includes a drying unit that blows hot air to dry the mist of the liquid after the guiding unit has finished guiding the liquid. The biometric imaging system according to claim 4 .

8. An imaging means for imaging a living body present within an imaging range; A filling means for filling a liquid into the imaging range; a guide means for guiding a position for placing the living body using the liquid; A biometric imaging device comprising:

9. 1. A method for in vivo imaging implemented by at least one computer, comprising: Filling the imaging range of the imaging means with liquid; Using the liquid to guide a position for placing the living body; Imaging the guided living body; Biometric imaging methods.

10. At least one computer Filling the imaging range of the imaging means with liquid; Using the liquid to guide a position for placing the living body; Imaging the guided living body; A computer program for executing a biomedical imaging method.

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