JP2007272523A - Image acquisition method and image acquisition device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and reliably acquire biological information belonging to a hand usable for authentication simultaneously with photographing of a face photograph to prevent switch of a user, in an image acquisition method and device acquiring the biological information belonging to the hand of the user and a face image of the user. <P>SOLUTION: This image acquisition device 10 simultaneously acquires the face image and the biological information belonging to the hand of the user 14. The image acquisition device 10 decides whether the biological information belonging to the hand of the user 14 usable for the authentication can be obtained or not, and displays a decision result in the decision. Only when deciding that it can be obtained, the face image and the biological information belonging to the hand of the user 14 can be simultaneously acquired, and a foot switch 37 inputting an instruction signal for simultaneously acquiring the face image and the biological information belonging to the hand of the user can be operated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention mainly relates to an image acquisition method and apparatus for acquiring an image attached to a tag or the like belonging to an individual such as an identification card or a magnetic card. More specifically, in addition to acquisition of a user's face image, The present invention relates to an image acquisition method and apparatus for acquiring biological information belonging to a user's hand.

  Currently, an image acquisition device is installed on the street to take a face photo of a user unattended. Such an image acquisition device prints a photograph of a face photographed on plain paper or paper such as a sticker and provides it to the user.

Recently, biometric information has been used for personal authentication in order to improve security, and an image acquisition device capable of acquiring biometric information such as a fingerprint as well as taking a face photograph has been proposed (for example, Patent Document 1). In the apparatus described in Patent Document 1, biological information is acquired after a face photograph is taken. When a user switches between taking a facial photo and acquiring biometric information, a monitoring photo including the user's face is taken before and after acquiring the biometric information so that the record remains. .
JP-A-2005-196388

  However, taking a monitoring photograph as in the apparatus described in Patent Document 1 has an effect of suppressing the substitution, but prevents the substitution of the user in the field of biometric information acquisition and face photography. It is difficult.

  In order to prevent the user from changing, a face image acquisition apparatus that simultaneously captures a face photograph and acquires biometric information has also been devised. However, it is not easy for a user who is not used to acquiring biometric information to acquire biometric information that can be used for authentication at the same time as taking a face photograph. In general, when taking a face picture, the front face is taken, so the user's line of sight faces the front. Therefore, for example, when acquiring biometric information belonging to a hand, such as a fingerprint, at the same time as taking a face photo, there is a problem that the hand cannot be sufficiently confirmed at the time of acquisition, and biometric information usable for authentication cannot always be acquired. is there.

  The present invention has been made in view of the above circumstances, and in an image acquisition method and apparatus for acquiring a facial image of a user and biometric information belonging to the user's hand, authentication is performed simultaneously with the photographing of a facial photograph. It is an object of the present invention to provide an image acquisition method and apparatus capable of easily and reliably acquiring biometric information belonging to an available hand and preventing a user from being replaced.

  The image acquisition method of the present invention is a state in which biometric information belonging to a user's hand that can be used for authentication can be acquired in an image acquisition method for simultaneously acquiring biometric information belonging to a user's hand and the user's face image. The biometric information belonging to the user's hand and the user's face only when it is determined that it is in an acquirable state in the determination It is characterized by enabling simultaneous acquisition of images.

  The image acquisition apparatus of the present invention can acquire biometric information belonging to a user's hand that can be used for authentication in an image acquisition apparatus that simultaneously acquires biometric information belonging to the user's hand and the face image of the user. A determination unit that determines whether or not the user is in a state, a display unit that displays a determination result by the determination unit, and the user's hand only when the determination unit determines that the state is obtainable. And a control means that enables simultaneous acquisition of the biometric information belonging to the user and the face image of the user.

  The image acquisition apparatus includes an input unit that inputs a biological signal belonging to the user's hand and a command signal for simultaneously acquiring the user's face image, and the control unit is determined to be acquired by the determination unit. The input means may be enabled only when

  As the input means, a foot switch arranged at the user's foot and operable by the user's foot, a line-of-sight switch that operates by detecting the user's line of sight, and a voice generated by the user are recognized. An operating voice switch or the like may be used.

  Further, the display means displays the determination result at a position where the user can view without changing the line of sight while simultaneously acquiring the biometric information belonging to the user's hand and the user's face image. Also good. At that time, the display means may display the determination result by color.

  Here, the “biological information belonging to the hand” includes a fingerprint, a fingerprint, a hook, a finger vein pattern, a palm vein pattern, and the like.

  In addition, various methods can be used for the determination of “whether or not biometric information belonging to the user's hand that can be used for authentication is in a state where it can be acquired”. For example, in the case of a contact-type biometric information acquisition device, determination may be made based on whether or not the contact area is a predetermined size or more. In the case of a biometric information acquisition device that extracts feature points, the user's Before acquiring biometric information and face images belonging to the hand at the same time, it is possible to simply preliminarily acquire biometric information belonging to the hand and determine whether or not a predetermined number or more of feature points have been acquired at that time. Good.

  The image acquisition method and apparatus of the present invention determines whether or not biometric information belonging to a user's hand that can be used for authentication is in a state where it can be acquired, displays a determination result in the determination, and is in a state where it can be acquired Only when it is determined that the user's hand is present, the biometric information belonging to the user's hand and the user's face image can be simultaneously acquired. Thereby, the user places his / her hand so as to be determined to be in an acquirable state while confirming the displayed determination result, and after determining that the user is in an acquirable state, It is only necessary to direct the face to the face image acquisition device while maintaining it, and it is possible to easily and reliably acquire biometric information belonging to a hand that can be used for authentication at the same time as taking a face photo, and to prevent the user from changing .

  Here, an input unit that inputs a command signal for simultaneously acquiring biometric information belonging to the user's hand and the user's face image is provided, and the control unit determines that acquisition is possible by the determination unit In addition, if the input means is made operable, it is possible to prevent wasteful acquisition of biometric information belonging to a hand that cannot be used for authentication.

  If the input means is a foot switch, it is not necessary to use a hand when inputting a simultaneous acquisition command signal, so that biometric information belonging to the user's hand that can be used for authentication can be acquired. The command signal for easily acquiring the biological information belonging to the hand and the user's face image at the same time can be input while the state determined as is maintained.

  If the display means displays the determination result at a position where the user can view without changing the line of sight during the simultaneous acquisition of the biological information belonging to the user's hand and the user's face image, Since it is not necessary to move the face direction or line of sight in order to visually recognize the determination result, the determination result can be easily confirmed while maintaining a posture and line of sight suitable for acquiring a face image.

  If the display means displays the determination result by color, it is not necessary to read characters or the like, and the determination result can be easily recognized at a glance.

  Hereinafter, an image acquisition apparatus and method according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of an image acquisition apparatus 10 according to the first embodiment of the present invention. The image acquisition apparatus 10 has a rectangular parallelepiped casing as a whole, and is approximately 2.0 m high and 1.4 m wide. As an example, FIG. As shown in FIG. 1, the apparatus 10 includes a photographing room 12 having a width of about 75 cm, and a user 14 takes a picture while sitting on a chair 16 provided in the photographing room 12.

  The image acquisition device 10 is divided into an upper stage 18, a middle stage 20, and a lower stage 22 having a desk portion 21 except for the shooting room 12. The middle stage 20 is provided with a digital camera 24 which is a face image acquisition means and a controller 33. The controller 33 controls the entire operation of the image acquisition apparatus 10 including control of the digital camera 24 and performs various processes such as image processing. The angle of view α of the lens of the digital camera 24 is wide and covers the range of the height 60 cm to 170 cm of the back wall 27 of the photographing room 12. Therefore, when the user 14 sits on the chair 16, at least the head 15 and the chest 17 can be reliably covered, and photographing independent of the height of the user 14 is possible.

  On the upper stage 18, an illumination device 25, a CRT display 26, and a speaker 29 are arranged. The speaker 29 is a device that conveys an operation instruction to the user 14 by voice. The illumination device 25, the CRT display 26 and the speaker 29 are connected to the controller 33.

  The illumination device 25 is illumination that illuminates the photographing room 12 in order to maintain sufficient brightness for photographing. The illumination device 25 has a function of switching and irradiating a plurality of types of illumination light having different color temperatures in stages. For example, three types of illumination light are irradiated from pale light having a color temperature of about 9000K to red light having a color temperature of about 3000K so that the skin color of the acquired facial image of the user 14 is different. The illumination light may be switched by switching a color filter of a plurality of colors using a white light source, or switching of a color combination of light sources that emit light by preparing a light source such as a light emitting diode of a plurality of colors. May be implemented.

  The CRT display 26 is a display unit that can display a moving image and a still image that are captured by the digital camera 24 and output from the controller 33. The display screen 30 of the CRT display 26 is directed downward, and the display content is projected onto the half mirror 34 of the middle stage 20 through the hollow boundary surface 32 between the upper stage 18 and the middle stage 20. According to the inclined half mirror 34 disposed between the digital camera 24 and the user 14, a part of the light from the CRT display 26 and the photographing room 12 is reflected mutually.

  A part of the light from the photographing room 12 is transmitted to the digital camera 24, but the light from the digital camera 24 side is blocked and does not reach the photographing room 12. Therefore, the user 14 can confirm the projection content on the half mirror 34 through the glass window 35, but the digital camera 24 is not visible to the user 14. However, the digital camera 24 can capture an image of the user 14 by light that passes through the half mirror 34 from the imaging room 12 and reaches the digital camera 24.

  A foot switch 37 as an input means for inputting a command signal for simultaneously acquiring a still image of a face image and fingerprint data is provided on the floor surface of the shooting room 12, and the user 14 steps on the foot switch 37 with his / her foot. The command signal for simultaneously acquiring the still image of the face image and the fingerprint data is input. The foot switch 37 is connected to the controller 33 and is normally locked so that it cannot be operated. The foot switch 37 is unlocked and becomes operable only when the controller 33 determines that appropriate fingerprint data that can be used for authentication can be acquired.

  The lower stage 22 is provided with a fingerprint acquisition unit 40 that is biometric information acquisition means, an operation touch panel 41, a card writer 42, a printer 43, and a modem 44. The fingerprint acquisition unit 40, the operation touch panel 41, the card writer 42, the printer 43, and the modem 44 are connected to the controller 33. Note that the fingerprint acquisition unit 40, the operation touch panel 41, and the card writer 42 are accommodated in the desk unit 21.

  The fingerprint acquisition unit 40 is a semiconductor fingerprint acquisition unit, includes a line sensor that can move inside, and acquires a fingerprint data by capturing a two-dimensional image by moving the line sensor. In this embodiment, simple fingerprint data preliminary acquisition is performed before acquisition of official fingerprint data, and it is determined whether or not a predetermined number of feature points necessary for authentication have been acquired. The characteristic points of the fingerprint data are, for example, line connection, branching, termination, bending, and the like.

  The touch panel 41 is a device that outputs a signal based on an operation of the user 14 to the controller 33. The touch panel 41 can switch between an information input screen for inputting personal information such as a user name, a resident card code number or a passport number, and an operation input screen for inputting an operation by the user. On the information input screen, a keyboard is displayed. On the operation input screen, as shown in FIG. 3, a shooting button 48 for instructing shooting of a face photo and a face photo to be written on a recording medium to be described later from the shot face photo are displayed. A selection button 49 to be selected is displayed.

  The card writer 42 is an apparatus that has an insertion port 52 for the recording medium 51 brought by the user 14 and that can write on the inserted medium. As the recording medium 51, a flexible disk, smart media (registered trademark), compact flash (registered trademark), memory stick (registered trademark), SD (Secure Digital) memory card (registered trademark), xD (Extreme Digital) picture card (registered) Trademark) or the like. The card writer 42 writes the digital image data of the face photographed by the camera 24 and the fingerprint data acquired by the fingerprint acquisition unit 40 into the recording medium 51.

  The printer 43 can print an image taken by the digital camera 24 as a photograph. The printed photograph is discharged from the discharge port 53. The modem 44 is a transfer unit that transfers digital image data or fingerprint data of the user's face to a predetermined base, for example, the management center 66 via the communication line 62 when the user desires.

  The controller 33 stores the face image, fingerprint data, and user personal information in association with each other. In the controller 33, the unique identification number of the image acquisition apparatus 10 and the shooting date / time data can be associated with each other and stored. Further, the controller 33 can transmit the data associated with the above to the remote management center 66 via the modem 44 and the communication line 62.

  In FIG. 1, for convenience of illustration, the inside of the upper stage 18, the middle stage 20, and the lower stage 22 of the apparatus 10 is visualized, but actually, the touch panel 41, the insertion port 52 of the card writer 42, and the discharge port 53 of the printer 43. Other than that, it is hidden by the wall and cannot be seen by the user 14. In addition, the lower stage 22 is further provided with mechanisms such as a charge input port and a refund port, but these are not shown.

  The side wall 71 of the apparatus 10 is provided with a monitoring camera 74 that continuously photographs the user 14. This surveillance camera 74 has a wide angle of view of the lens, and can obtain a surveillance image obtained by photographing the user's hand and face simultaneously. The monitoring camera 74 is attached to a side wall 71 about 10 cm from the side of the fingerprint acquisition unit 40 so as to be able to photograph the fingerprint acquisition unit 40 and the user's face. A monitoring image captured by the monitoring camera 74 is output to the controller 33.

  FIG. 4 is a functional block diagram of the digital camera 24 and the controller 33 in FIG. The optical lens 80 receives light from the user 14 as a subject and forms a subject image on the light receiving surface of the imaging unit 81. For example, a CCD (Charge Coupled Device) can be used as the imaging unit 81. The image signal photoelectrically converted by the imaging unit 81 is output to the video output unit 82.

  The video output unit 82 normally sends the image signal from the imaging unit 81 to the CRT display 26 as it is through the output terminal. Therefore, the moving image of the user 14 is captured and output by the digital camera 24, displayed on the CRT display 26, reflected by the half mirror 34, and returned to the user 14. Returning the moving image as it is to the user in this way is hereinafter referred to as video through. Before shooting, the user 14 can watch the returned moving image in real time by video through.

  The image signal output from the imaging unit 81 can also be output to an A / D converter (Analogue / Digital Converter; ADC) 83. At the time of photographing a face image, the A / D converter 83 converts an analog image signal into a digital image signal and stores it in the memory 84.

  A CPU (Central Processing Unit) 85 is connected to an A / D converter 83, a memory 84, and a D / A converter (Digital / Analog Converter; DAC) 86, and controls these units. At the time of shooting, the CPU 85 sends a conversion command to the A / D converter 83 to A / D convert the moving image signal in units of one frame. The CPU 85 can take a digital image signal that has been digitized and recorded in the memory 84, perform various image processing, and re-store it in the memory 84.

  The CPU 85 functions as a determination unit that determines whether fingerprint data that can be used for authentication can be acquired by the fingerprint acquisition unit 40, and displays the determination result on the CRT display 26 that is a display unit. The CPU 85 also functions as a control unit that sets the fingerprint data and the face image to be acquired simultaneously only when it is determined that acquisition is possible in the above determination, and when it is determined that acquisition is possible, the foot switch 37 is enabled.

  Further, the CPU 85 adds the personal information data input from the touch panel 41 to the face image and fingerprint data of the user 14 acquired by the digital camera 24, for example, the user name, the resident card code number or the passport number. Associate. The CPU 85 also associates the unique identification number of the image acquisition device 10 with the shooting date / time data.

  The association may be performed by any method. For example, a face image can be named using personal information data. Alternatively, the text data may be recorded in the header portion of the digital image data, handled integrally, and stored in the memory 84. In this way, digital image data capable of identifying “who belongs to” can be created from the personal information data associated with the digital image data.

  The CPU 85 can output a digital still image subjected to image processing, perform D / A conversion by the D / A converter 86, and send it to the video output unit 82. At this time, the video output unit 82 can be controlled to output an analog still image signal instead of the video moving analog video signal. As a result, a still image that has been shot and subjected to image processing can be shown to the user. The analog still image signal and moving image signal can be output in either color or black and white format.

  The CPU 85 can freely lay out the photographed image subjected to image processing and display it on the CRT display 26. Along with the output of the image, a plurality of still images prepared in advance in the memory 84 can be displayed in frame advance so that a simple animation can be displayed on the CRT display 26. Furthermore, free graphic output via the video output unit 82 is possible, and a message for the user 14 can be displayed on the CRT display 26.

  The CPU 85 is also connected to the speaker 29, and outputs a prepared audio signal to the speaker 29, so that an operation instruction suitable for each operation can be instructed to the user 14 by voice.

  The CPU 85 is also connected to the printer 43 and the touch panel 41. The still image that has been subjected to image processing can be printed as a photograph by being output from the CPU 85 to the printer 43 together with a print command. Further, the CPU 85 receives an operation command from the touch panel 41 and performs processing according to the operation of the user 14.

  The CPU 85 is further connected to a ROM (Read Only Memory) 87. The ROM 87 records at least a plurality of image processing programs, ID photo requirement specifications, and fingerprint authentication requirement specifications. The required specification of the ID photo includes at least information on the size of the photo to be printed and the size and position of the head in the photo. The required specification for fingerprint authentication includes at least information about a finger for acquiring fingerprint data and a feature point necessary for fingerprint authentication. The CPU 85 accesses the ROM 87, appropriately reads various programs and required photo specifications, and performs image processing for creating a photo that conforms to the required specifications for the still face image captured from the memory 84, and fingerprint data. Image processing to acquire

  Next, an operation example of the image acquisition apparatus 10 will be described with reference to FIG. FIG. 5 is a flowchart for explaining the operation of the image acquisition apparatus 10. All the operations of the present embodiment are performed in response to a voice message from the speaker 29. In the initial state, the foot switch 37 is locked so that it cannot be operated. The user 14 first inputs a fee (step 100). As a result, the image acquisition device 10 is activated. Next, the recording medium 51 is inserted into the insertion port 52 of the card writer 42 (step 101). Thereafter, personal information such as name and resident's card code is input from the touch panel 41 on which an information input screen (keyboard) is displayed (step 102).

  Next, the user 14 places the left and right index fingers on the fingerprint acquisition unit 40. The line sensor of the fingerprint acquisition unit 40 is activated to perform preliminary acquisition of fingerprint data, and the controller 33 extracts feature points from the preliminary acquired fingerprint data and can acquire a predetermined number or more of feature points necessary for fingerprint authentication. It is determined whether or not fingerprint data that can be used for authentication can be acquired (step 103).

  Then, the controller 33 displays the determination result on the CRT display 26 (step 104). As illustrated in FIG. 6, the determination result is displayed by displaying a frame-shaped determination result display area 92 for displaying the determination result around the face image display area 91 for displaying the face image on the screen of the CRT display 26. The determination result may be displayed by the color of the display area 92. For example, there are four feature points necessary for fingerprint authentication, and when the four feature points can be acquired, the determination result display area 92 is colored green. When only three feature points can be acquired, the determination result display area If the color of 92 is yellow and only two or less feature points can be acquired, the color of the determination result display area 92 may be red.

  As described above, in the image acquisition device 10 according to the present embodiment, the position where the determination result is displayed is a position where the user 14 can visually recognize the face image and the fingerprint data without changing the line of sight while simultaneously acquiring the face image and the fingerprint data. The determination result is displayed on the display 26. Further, since the determination result is displayed by color, the user 14 can easily recognize the determination result at a glance.

  If it is determined that data usable for fingerprint authentication cannot be acquired, the process returns to step 103, and the determination is continued. If it is determined that data usable for fingerprint authentication can be acquired, the process proceeds to step 106. Proceeding (step 105), the controller 33 releases the lock of the foot switch 37 and enables the foot switch 37 (step 106). The user 14 depresses the foot switch 37 (step 107), whereby a command signal for simultaneously acquiring a face image and fingerprint data is input, and the face image and fingerprint data are simultaneously acquired (step 108).

  When the face image and fingerprint data are acquired simultaneously, the controller 33 operates the illumination device 25 to change the color temperature of the illumination light (step 109), and whether or not three face image data are stored in the memory 84. Is determined (step 110). If three images are not stored, the process returns to step 107 to prompt the user 14 to step on the foot switch 37 again. Each time a face image and fingerprint data are acquired, the color temperature of the illumination light of the illumination device 25 is changed. Thus, when three face images having different color temperatures of the illumination light are acquired and stored, these three face image data are displayed on the CRT display 26 (step 111). The user 14 uses the selection button 49 to select the desired skin color face image data (step 112).

  Then, the controller 33 associates the face image, fingerprint data, the user name, personal information such as a resident card code number or passport number, the unique identification number of the image acquisition device 10 and information of the shooting date / time data. The acquired fingerprint data and face image are stored in the memory 84 as authentic fingerprint data and face image (step 113), and the recording medium 51 inserted in the insertion slot 52 of the card writer 42 is handled in step 111. Write the above information attached.

  As is clear from the above description, the image acquisition apparatus 10 according to the present embodiment can acquire fingerprint data and a face image simultaneously only when it is determined that fingerprint data that can be used for fingerprint authentication can be acquired. Therefore, the data usable for fingerprint authentication can be easily and surely acquired simultaneously with the acquisition of the face image, and the replacement at the time of acquiring the fingerprint data and the face image can be prevented.

  In the above embodiment, whether or not biometric information belonging to the user's hand that can be used for authentication is in a state that can be acquired is determined based on whether or not a predetermined number of feature points can be acquired. For example, the determination may be made based on whether or not the area of the finger in contact with the fingerprint acquisition unit is greater than or equal to a predetermined size.

  Moreover, in the said embodiment, the determination result whether it is in the state which can acquire the biometric information which belongs to the user's hand which can be used for authentication is displayed on the CRT display 26 by the color of the frame around the face image. However, the present invention is not limited to this, and it is sufficient that the determination result is displayed at a position where the user 14 can view without changing the line of sight while acquiring the face image or the like. It may be displayed in a part of the surroundings or in the face image.

  In the above example, the foot switch 37 is used as the command signal input means for simultaneously acquiring the face image and the fingerprint data, but may be acquired by other means. For example, a line-of-sight switch that operates by detecting the line of sight of the user, a voice switch that operates by recognizing a voice generated by the user, or the like may be employed. Alternatively, the fingerprint data and the face image may be set to be acquired simultaneously, and the fingerprint data and the face image may be automatically acquired after a predetermined time has passed. Specifically, for example, in the above embodiment, When it is determined that fingerprint data that can be used for fingerprint authentication can be acquired, the countdown starts immediately after the determination result display area 92 turns green, and when the countdown ends, the fingerprint data and the face image are automatically acquired. May be acquired simultaneously.

  In the above example, the fingerprint data of the left and right index fingers is acquired. However, the present invention is not limited to this, and fingerprint data of any finger may be acquired. The stored biometric information may be a fingerprint image or a feature point of the fingerprint when the biometric information is a fingerprint, for example, in a form usable for biometric authentication. Any form of biological information may be used.

  When the user desires, the associated information may be transferred to a predetermined base, for example, the management center 66 via the communication line 62, or may be printed out. The controller 33 may store the associated information for a predetermined period.

1 is a schematic configuration diagram of an image acquisition device according to an embodiment of the present invention. External view of the image acquisition device shown in FIG. Illustration of operation input screen Functional block diagram of the digital camera and controller shown in FIG. The flowchart explaining operation | movement of the image acquisition apparatus shown in FIG. The figure for demonstrating the example of a display of a judgment result

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image acquisition apparatus 12 Shooting room 14 User 24 Digital camera 25 Illumination apparatus 26 CRT display 33 Controller 37 Foot switch 40 Fingerprint acquisition part 41 Touch panel 42 Card writer 43 Printer 44 Modem 53 Outlet 62 Communication line 66 Management center 81 Imaging part 84 Memory 85 CPU
91 Face image display area 92 Judgment result display area

Claims (6)

In an image acquisition method for simultaneously acquiring biometric information belonging to a user's hand and the user's face image,
Determine whether biometric information belonging to the user's hand that can be used for authentication is in a state where it can be acquired,
Display the determination result in the determination,
An image acquisition method characterized by enabling simultaneous acquisition of biometric information belonging to the user's hand and the user's face image only when it is determined in the determination that the image can be acquired. In an image acquisition device for simultaneously acquiring biometric information belonging to a user's hand and the user's face image,
Determining means for determining whether or not biometric information belonging to the user's hand that can be used for authentication is in a state where it can be acquired;
Display means for displaying a determination result by the determination means;
Only when it is determined by the determination means that the image can be acquired, the control means enables simultaneous acquisition of the biological information belonging to the user's hand and the face image of the user. An image acquisition device. Input means for inputting a biometric information belonging to the user's hand and a command signal for simultaneously acquiring the user's face image;
The image acquisition apparatus according to claim 2, wherein the control unit enables the input unit only when it is determined that acquisition is possible by the determination unit.   The image acquisition apparatus according to claim 3, wherein the input unit is a foot switch.   The display means displays the determination result at a position where the user can view without changing the line of sight during simultaneous acquisition of the biological information belonging to the user's hand and the user's face image. The image acquisition device according to claim 2, wherein the image acquisition device is an image acquisition device.   The image acquisition apparatus according to claim 5, wherein the display unit displays the determination result with a color.

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