JP2009153566A - Face state imaging device and face state imaging method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a face state imaging device and a face state imaging method for preventing ultraviolet rays from entering eyes. <P>SOLUTION: The face state imaging device 1 includes a near-ultraviolet light source 10, a camera 20, a controlling computer 30, and a monitor 40. When a motion sensor part inside detects that eyes of a subject H are closed, the controlling computer 30 controls to make the near-ultraviolet light source 10 emit near-ultraviolet rays and displays an image of a face of the subject H which is captured by the camera 20 and is stored in a storage part 32 inside on the monitor 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a face state imaging device and a face state imaging method.

Conventionally, by irradiating a subject's face with near-ultraviolet rays (UV-A) and imaging a face in an ultraviolet irradiation state, it is possible to observe an initial stage stain that is difficult to see in a visible light irradiation state. The device is known. In this apparatus, the operator first irradiates the subject's face with visible light, and then operates the changeover switch to irradiate the subject's face with ultraviolet rays. Next, the operator images the face of the subject using an imaging camera (see Patent Document 1).
JP 2004-3068 A

  However, in the conventional device, although it is irradiated with light that is relatively safe for the eyes, such as near ultraviolet rays, because it irradiates the subject's face, near ultraviolet rays may be incident on the subject's eyes, It is not desirable.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a face state imaging device and a face state imaging method capable of preventing ultraviolet rays from entering the eyes. It is to be.

  A face state imaging apparatus according to the present invention includes an ultraviolet irradiation unit that irradiates a subject's face with ultraviolet rays, an imaging unit that images the subject's face, and a storage unit that stores an image of the subject's face captured by the imaging unit. Display means for displaying an image of the face of the subject stored by the storage means, a sensor for detecting that the subject has closed his eyes, and ultraviolet rays when the sensor detects that the eyes of the subject have been closed. Control means for controlling the irradiating means to irradiate ultraviolet rays and then taking an image by the imaging means and displaying the picked-up image of the face of the subject on the display means from the storage means.

  According to this face state imaging device, when it is detected by the sensor that the subject's eyes are closed, the ultraviolet irradiation means is controlled to irradiate the ultraviolet rays, and then the imaging means picks up an image, which is stored in the storage means. An image of the face of the subject is displayed on the display means. For this reason, when the subject's eyes are not closed, the control means does not irradiate the subject's face with ultraviolet rays, and no ultraviolet rays are incident on the subject's eyes. Accordingly, it is possible to prevent ultraviolet rays from entering the eye.

  Further, in the face state imaging apparatus according to the present invention, the control means captures an image by the imaging means triggered by the irradiation of ultraviolet rays by the ultraviolet irradiation means, and stores the captured face image of the subject in the storage means. It is preferable.

  According to this face state imaging apparatus, the control means captures an image by the imaging means triggered by the irradiation of ultraviolet rays by the ultraviolet irradiation means, and stores the captured face image of the subject in the storage means. For this reason, imaging and storage are automatically performed without any operation by an operator or the like, and processing up to storage of a captured image is executed relatively soon after ultraviolet irradiation. Accordingly, it is possible to suppress the situation where the skin is irradiated with ultraviolet rays for a long time.

  The face state imaging apparatus according to the present invention further includes visible light irradiation means for irradiating visible light, and switching means for switching between irradiation by the visible light irradiation means and irradiation by the ultraviolet irradiation means, and the control means includes When the sensor detects that the subject's eyes are closed, it is preferable to control the switching means to switch from irradiation by the visible light irradiation means to irradiation by the ultraviolet irradiation means.

  According to this face state imaging device, the control means controls the switching means when the sensor detects that the subject's eyes are closed, and changes from the irradiation by the visible light irradiation means to the irradiation by the ultraviolet irradiation means. Let them switch. For this reason, visible light is irradiated before the eyes are closed, the face state imaging device can be used even in a dark place, and the subject's eyes are closed to shift to imaging. Visible light can be kept out of the way.

  Further, in the face state imaging device according to the present invention, the display means can display an image of the face of the subject imaged by the imaging means, and the control means irradiates the visible light irradiation means, and then the imaging means It is preferable that the image of the subject's face is captured and displayed on the display means.

  According to this face state imaging device, the control means causes the display means to display the face image of the subject imaged by the imaging means after irradiating visible light, so that the subject is displayed by the display means. It is possible to confirm the position of the face of the user, and to prevent imaging at an incorrect position during ultraviolet irradiation.

  Further, in the face state imaging device according to the present invention, the control means controls the ultraviolet irradiation means to irradiate the ultraviolet rays, stores the subject's face by the storage means, and then controls the switching means to control the ultraviolet irradiation means. It is preferable to switch from irradiation by the irradiation by visible light irradiation means and display the image of the face of the subject stored in the display means.

  According to this face state imaging device, the control means controls the ultraviolet irradiation means to irradiate ultraviolet rays, and the storage means stores the face image of the subject, and then controls the switching means to control the ultraviolet irradiation means. Switch from irradiation to irradiation by visible light irradiation means. For this reason, the irradiation of ultraviolet rays ends after the completion of imaging, and the situation where ultraviolet rays are irradiated on the skin for a long time can be suppressed.

  In the face state imaging apparatus according to the present invention, the storage means stores past images of the subject's face that have been irradiated with ultraviolet rays by the ultraviolet irradiation means and imaged by the imaging means, and the control means stores the storage means. It is preferable to display both the past face image and the test subject's face image that has been irradiated with ultraviolet rays by the ultraviolet irradiation means and picked up by the imaging means and stored in the storage means together on the display means.

  According to this face state imaging apparatus, the control means displays both the past face image and the current face image of the subject on the display means. For this reason, it is possible to compare the state of past stains and the like with the state of current stains and the like, and it is possible to present the progress state and care state of the stains and the like to the subject in an easy-to-understand manner.

  In the face state imaging apparatus according to the present invention, it is preferable that the control unit causes the display unit to display an image of the subject's face that is horizontally reversed.

  According to this face state imaging device, the control unit causes the display unit to display the subject's face image captured by the imaging unit by reversing left and right. For this reason, the image displayed by the display means becomes an image that appears in the mirror, and it is possible to make it easier for the subject to confirm the position of the spot or the like as compared with the case where the image is not reversed left and right.

  Further, the face state imaging method according to the present invention irradiates ultraviolet rays when it is detected that the subject's eyes are closed in the first step of detecting that the subject's eyes are closed, and in the first step. A second step, a third step of imaging the face of the subject when ultraviolet rays are irradiated in the second step, a fourth step of storing an image of the subject's face imaged in the third step, And a fifth step of displaying the face image of the subject stored in the four steps.

  According to this face state imaging method, when it is detected that the subject's eyes are closed, ultraviolet rays are irradiated, and then the image of the subject's face captured and stored is displayed. For this reason, when the subject's eyes are not closed, ultraviolet rays are not irradiated to the subject's face, and no ultraviolet rays are incident on the subject's eyes. Accordingly, it is possible to prevent ultraviolet rays from entering the eye.

  According to the face state imaging device and the face state imaging method of the present invention, it is possible to prevent ultraviolet rays from entering the eyes.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external configuration diagram illustrating a face state imaging device according to an embodiment of the present invention. The face state imaging device 1 irradiates the face of the subject H with near ultraviolet rays, and displays an image captured and stored during the irradiation for the subject H after completion of the irradiation. The face state imaging device 1 includes a near ultraviolet light source (ultraviolet irradiation means) 10, a camera (imaging means) 20, a control computer (control means) 30, a monitor (display means) 40, and a visible light source (visible light). (Irradiation means) 50 and a light source switch (switching means) 60.

  The near-ultraviolet light source 10 irradiates near-UV light of about 250 to 450 nm toward the face of the subject H, and is composed of, for example, an ultraviolet light-emitting diode or black light. The camera 20 captures the face of the subject H, and is constituted by, for example, a CCD camera or a CMOS camera. Further, the camera 20 is provided with an ultraviolet cut filter 21 on the front surface, and is configured to cut unnecessary ultraviolet rays.

  The control computer 30 controls the entire face state imaging device 1, processes and images an imaging signal obtained by imaging by the camera 20, and monitors the image signal of the face of the subject H that has been imaged 40. It is to provide. The monitor 40 displays an image of the face of the subject H based on the image signal.

  The visible light source 50 irradiates visible light on the face of the subject H, and for example, a white light emitting diode is used. The light source switcher 60 performs switching between the visible light source 50 and the near ultraviolet light source 10 to switch between irradiation by the visible light source 50 and irradiation by the near ultraviolet light source 10.

  FIG. 2 is a block diagram showing details of the control computer 30 shown in FIG. As shown in FIG. 2, the control computer 30 includes an image processing unit 31, a storage unit (storage unit) 32, a motion sensor unit (sensor) 33, and a device control unit 34.

  The image processing unit 31 processes an imaging signal obtained by imaging with the camera 20 to generate captured image information, that is, image information of the face of the subject H. The image processing unit 31 is connected to the storage unit 32, the motion sensor unit 33, and the monitor 40, and can transmit face image information to each.

  The storage unit 32 stores image information of the face of the subject H captured by the camera 20 and generated by the image processing device 31. The storage unit 32 is connected to the monitor 40 and can transmit face image information to the monitor 40.

  Here, the monitor 40 can receive face image information from the image processing unit 31 and can receive face image information from the storage unit 32. For this reason, the monitor 40 can display the face image of the subject H captured by the camera 20 in real time and can display the face image of the subject H stored in the storage unit 32.

  The storage unit 32 is configured to accumulate image information of the face of the subject H. For this reason, when image information of the face of the subject H has been stored in the past, this image can also be displayed on the monitor 40.

  The motion sensor unit 33 detects that the subject H has closed his eyes, and is configured to determine whether the subject H has opened or closed based on an image captured by the camera 20. The motion sensor unit 33 includes a binarization unit 33a, an eye position detection unit 33b, and an eye open / close determination unit 33c.

  The binarization unit 33a performs binarization processing on an image based on a predetermined threshold. By the processing by the binarization processing unit 33a, a bright portion and a dark portion of the image are separated. For this reason, eyebrows, eyelines, nostrils, the boundary between the upper lip and the lower lip, and the like, which are dark portions of the face of the subject H, are extracted as dark portions.

  The eye position detection unit 33b detects the eye position from the face of the subject H. The eye position detection unit 33b detects the eyeline (that is, the eye) from the positional relationship of the parts detected as the dark part of the face of the subject H, such as the eyebrows, the eyeline, the nostril, and the boundary between the upper lip and the lower lip. Position).

  The eye opening / closing determination unit 33c determines opening / closing of the eye from the information on the eye position detected by the eye position detection unit 33b and the binarization information of the image obtained by the binarization unit 33a. Specifically, when the eyes are open, the eye line that protrudes upward, the eyeball (black part) and the eye line that protrudes downward are easily detected as dark parts, and when the eyes are closed, straight or below The eye line that is convex is easily detected as a dark part. Using such a tendency, the eye opening / closing determination unit 33c is configured to determine whether or not the subject H's eyes are closed.

  Note that once the eye position is detected, the eye position does not change significantly unless the face of the subject H moves greatly. For this reason, when the position of the first time is detected, the binarization unit 33a may binarize only a portion where the position of the eye is estimated to improve the processing speed. In addition, when the first position is detected, the motion sensor unit 33 may omit the processing of the eye position detection unit 33b and make an eye opening / closing determination.

  The device control unit 34 performs imaging control of the camera 20, storage control of the storage unit 32, display control of the monitor 40, and switching control by the light source switching unit 50. In particular, the device control unit 34 performs the imaging control of the camera 20 and the storage control of the storage unit 32 when the motion sensor unit 33 determines that the eyes of the subject H are closed, and the subject H captured by the camera 20 is captured. The image of the face is stored.

  In such a face state imaging device 1, when the power is turned on, the device control unit 34 outputs a signal to the light source switch 60 and causes the visible light source 50 to emit visible light. Thereafter, the device control unit 34 starts imaging with the camera 20. When the power is turned on, the image processing unit 31 starts image processing, and the binarization unit 33a of the motion sensor unit 33 performs binarization processing. Then, the eye position detection unit 33b detects the eye position of the subject H, and the eye open / close determination unit 33c determines the open / closed state of the eyes.

  Note that during the irradiation of visible light as described above, the image information of the face of the subject H captured by the camera 20 is supplied to the monitor 40 without passing through the storage unit 32. For this reason, the monitor 40 displays the face image of the subject H in real time, and the subject H can determine the angle and trimming of the face to be imaged while viewing the image displayed on the monitor 40. .

  Here, it is assumed that the eye opening / closing determination unit 33c determines that the subject's eyes are closed. In this case, the device control unit 34 once stops imaging with the camera 20. That is, since there is no need for real-time display, the device control unit 34 stops imaging once. And the apparatus control part 34 outputs a signal to the light source switch 60, and switches from irradiation of the visible light by the visible light source 50 to irradiation of the near ultraviolet light by the near ultraviolet light source 10. Further, the device control unit 34 outputs a signal to the camera 20 and the storage unit 32 using the near-ultraviolet light emitted from the near-ultraviolet light source 10 as a trigger, and causes the camera 20 to capture an image. Is stored in the storage unit 32. In addition, the device control unit 34 outputs a signal to the monitor 40 and causes the monitor 40 to display the face image of the subject H stored in the storage unit 32.

  As a result, an image showing a stain or the like obtained during near-ultraviolet irradiation is displayed on the monitor 40, which can lead to beauty promotion. When the eyes of the subject H are not closed, the control computer 30 does not irradiate the subject's face with near ultraviolet rays, and the subject's eyes do not receive near ultraviolet rays. Therefore, it is possible to prevent near ultraviolet rays from entering the eye.

  In addition, after the face of the subject H is imaged by the camera 20, the device control unit 34 outputs a signal to the light source switch 60, and the visible light source 50 emits visible light from the near ultraviolet light source 10 to the visible light source 50. Switch to. This prevents a situation in which near-ultraviolet rays are irradiated on the skin for a long time, and prevents near-ultraviolet rays from entering the eyes even if the subject H opens his eyes immediately after closing his eyes.

  Next, the face state imaging method according to the present embodiment will be described with reference to a flowchart. FIG. 3 is a flowchart showing the face state imaging method according to the present embodiment. First, when the power of the face state imaging device 1 is turned on, the device control unit 34 of the control computer 30 controls the light source switch 60 to emit visible light from the visible light source 50 (S1).

  Next, the camera 20 starts imaging (S2). Thereafter, information of the captured image from the camera 20 is directly supplied to the monitor 40 without being stored via the control computer 30, and the monitor 40 displays an image of the face of the subject H (S3). Next, the control computer 30 determines whether or not the current eye position of the subject H has been detected (S4).

  If it is determined that the eye position has been detected (S4: YES), the process proceeds to step S7. On the other hand, when it is determined that the eye position has not been detected (S4: NO), the binarization unit 33a performs binarization processing (S5) and identifies a dark part of the face. Then, the eye position detection unit 33b detects the eye position from the arrangement relationship of the dark part of the face (S6).

  Next, in step S7, the open / close determining unit 33c determines whether the eyes are open or closed (S7). If it is determined that the eyes are not closed (S8: NO), the process proceeds to step S2. On the other hand, when it is determined that the eyes are closed (S8: YES), the device control unit 34 controls the light source switch 60 so that the near-ultraviolet light source 10 emits near-ultraviolet light from the visible-light irradiation 50. Switch to irradiation (S9). At this time, the device control unit 34 once stops imaging.

  Next, the device control unit 34 performs imaging (S10). Next, the device control unit 34 performs storage control of the storage unit 32, and causes the storage unit 32 to store the image information of the face of the subject H captured by the camera 20 (S11). And the apparatus control part 34 controls the light source switch 60, and switches from irradiation of the near ultraviolet light by the near ultraviolet light source 10 to irradiation of the visible light by the visible light source 50 (S12).

  Thereafter, the device control unit 34 determines whether there is face image information stored in the storage unit 32 in the past for the subject H in which the image information of the current face is stored (S13). When it is determined that there is no image information of the past subject H (S13: NO), the control computer 30 performs a left / right reversing process on the image information stored in the storage unit 32 this time (S14). Then, the device control unit 34 transmits the image information subjected to the left / right reversal process to the monitor 40, and the monitor 40 displays the left / right reversed image (S15). Thereafter, the process ends.

  FIG. 4 is an explanatory diagram showing an image displayed in step S15 shown in FIG. As shown in FIG. 4, the left-right reversal processing is performed, so that the display image appears in the mirror. Therefore, the spot R present on the right side of the face is displayed on the right side from the subject H, and the spot L present on the left side of the face is displayed on the left side from the subject H. This makes it easier for the subject H to grasp the position of a stain or the like.

  FIG. 3 will be referred to again. When it is determined that there is image information of the subject H in the past (S13: YES), the control computer 30 performs left-right reversal processing on the image information stored in the storage unit 32 this time, and in the storage unit 32 in the past. A left / right reversing process is executed for the stored image information (S16). Then, the device control unit 34 transmits both pieces of image information subjected to the left / right reversal processing to the monitor 40, and the monitor 40 displays both the left / right reversed images (S17). Thereafter, the process ends.

  FIG. 5 is an explanatory diagram showing an image displayed in step S17 shown in FIG. As shown in FIG. 6, the left-right reversal process is performed, so that the display image appears in the mirror. Further, in the example shown in FIG. 5, the face image of the previous month and the current face image are displayed together. For this reason, the state of skin care and the like can be presented to the subject H in an easily understandable manner. Specifically, in the example shown in FIG. 5, it can be seen that both the left and right spots R and L are smaller than before one month. For this reason, the subject H can be informed of information such as that the skin care should be continued as it is.

  Thus, according to the face state imaging device 1 according to the present embodiment, the near-ultraviolet light source 10 is controlled and the near-ultraviolet light source 10 is controlled when the motion sensor unit 33 detects that the eye of the subject H is closed. Then, the image of the face of the subject H stored in the storage unit 32 is displayed on the monitor 40. For this reason, when the subject's H eyes are not closed, near ultraviolet rays will not be irradiated to the subject's H face by the control computer 30, and near ultraviolet rays will not enter into the eyes of the subject H. Therefore, it is possible to prevent near ultraviolet rays from entering the eye.

  In addition, the control computer 30 causes the storage unit 32 to store the face image of the subject H captured by the camera 20 when triggered by the near ultraviolet light source 10 being irradiated with near ultraviolet light. For this reason, imaging and storage are automatically performed without an operation by an operator or the like, and processing up to storage of a captured image is executed relatively soon after near-ultraviolet irradiation. Therefore, it is possible to suppress a situation in which near-ultraviolet rays are irradiated on the skin for a long time.

  In addition, when the motion sensor unit 33 detects that the eye of the subject H is closed, the control computer 30 controls the light source switch 60 to change from the irradiation by the visible light source 50 to the irradiation by the near ultraviolet light source. Let them switch. For this reason, visible light is irradiated until the eyes are closed, the face state imaging device 1 can be used even in a dark place, and the eyes of the subject H are closed for imaging. Visible light can be kept out of the way at the transition stage.

  Further, since the control computer 30 causes the monitor 40 to display the face image of the subject H captured by the camera 20 after irradiating the visible light, the subject H has his / her face position displayed on the monitor 40. Thus, it is possible to prevent an image from being taken at an incorrect position during near-ultraviolet irradiation.

  The control computer 30 controls the near-ultraviolet light source 10 to irradiate near-ultraviolet light, stores the face of the subject H in the storage unit 32, and then controls the light source switch 60 to irradiate the near-ultraviolet light source 10. To irradiation with the visible light source 50. For this reason, irradiation of near ultraviolet rays ends after completion of imaging, and a situation in which near ultraviolet rays are irradiated on the skin for a long time can be suppressed.

  Further, the control computer 30 causes the monitor 40 to display both the past face image and the current face image of the subject. For this reason, it is possible to compare the state of past stains and the like with the state of current stains and the like, and it is possible to present the progress state and care state of the stains and the like to the subject in an easy-to-understand manner.

  In addition, the control computer 30 causes the monitor 40 to display the face image of the subject H captured by the camera 20 on the monitor 40 by horizontally flipping the image. For this reason, the image displayed on the monitor 40 becomes an image reflected in a mirror, and it is possible to make it easier for the subject to confirm the position of a spot or the like as compared with the case where the image is not reversed left and right.

  Further, according to the face state imaging method according to the present embodiment, when it is detected that the eye of the subject H is closed, the near-ultraviolet ray is irradiated, and then the image of the face of the subject H that is captured and stored is used. Display. For this reason, when the eye of the subject H is not closed, the near ultraviolet ray is not irradiated to the face of the subject H, and the near ultraviolet ray is not incident on the eye of the subject H. Therefore, it is possible to prevent near ultraviolet rays from entering the eye.

  As described above, the face state imaging device and the face state imaging method according to the present invention have been described based on the embodiments. However, the present invention is not limited to this, and modifications are made without departing from the spirit of the present invention. May be.

  For example, in the present embodiment, the camera 20 and the monitor 40 are located on the same direction side as viewed from the subject H, but are not limited thereto, and may be provided on different direction sides. If the monitor 40 does not exist on the same direction side as the camera 20, the face and eyes are moved when the face is positioned near the center of the accurate imaging range. It is desirable that it is positioned in the same direction as viewed from the viewpoint of easy alignment.

  In the present embodiment, the opening / closing of the eyes is determined by the motion sensor unit 33 as shown in FIG. 2, but is not limited to this, and is determined by other methods such as using the upper eyelid optical flow. May be.

  Further, in the present embodiment, the control computer 30 performs left-right reversal processing on the image stored in the storage unit 32 and outputs it to the monitor 40. However, the present invention is not limited to this, and image information is stored in the storage unit 32. A reversal process may be performed in advance.

  In the present embodiment, the control computer 30 performs a reversal process on the face image of the subject H stored in the storage unit 32. In addition to this, an image displayed on the monitor 40 when the visible light is irradiated. A reversal process may be performed. This is because the face of the subject H is displayed like a mirror image even when visible light is irradiated, and the subject H can easily determine the angle and trimming of the face to be imaged.

  Furthermore, in this embodiment, it is desirable that the eye opening / closing determination unit 33c has a configuration that does not react to the blink of the subject H. As a result, it is determined that the eyes are closed at the moment of blinking, and by irradiating near ultraviolet rays, it is possible to prevent the subject H from being irradiated with near ultraviolet rays immediately after the end of blinking (that is, immediately after the eyes are opened). Because.

It is an external appearance block diagram which shows the face state imaging device which concerns on embodiment of this invention. It is a block diagram which shows the detail of the control computer shown in FIG. It is a flowchart which shows the face state imaging method which concerns on this embodiment. It is explanatory drawing which shows the image displayed in step S15 shown in FIG. It is explanatory drawing which shows the image displayed in step S17 shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Face state imaging device 10 Near ultraviolet light source (ultraviolet irradiation means)
20 camera (imaging means)
30 Control computer (control means)
31 Image processing unit 32 Storage unit (storage unit)
33 Motion sensor (sensor)
33a Binarization unit 33b Eye position detection unit 33c Eye opening / closing determination unit 34 Device control unit 40 Monitor (display means)
50 Visible light source (visible light irradiation means)
60 Light source switch (switching means)

Claims (8)

Ultraviolet irradiation means for irradiating the subject's face with ultraviolet rays;
Imaging means for imaging the face of the subject;
Storage means for storing an image of the face of the subject imaged by the imaging means;
Display means for displaying an image of the face of the subject stored by the storage means;
A sensor for detecting that the subject closed his eyes;
When it is detected by the sensor that the subject's eyes are closed, the ultraviolet irradiation means is controlled to irradiate ultraviolet rays, and then the imaging means picks up an image, and the image of the subject taken from the storage means Control means for displaying a face image on the display means;
A face state imaging apparatus comprising: 2. The control unit according to claim 1, wherein the imaging unit captures an image of the subject's face taken by the imaging unit triggered by the irradiation of the ultraviolet ray by the ultraviolet irradiation unit, and stores the captured face image of the subject in the storage unit. The face state imaging device described in 1. Visible light irradiation means for irradiating visible light;
A switching unit that switches between irradiation by the visible light irradiation unit and irradiation by the ultraviolet irradiation unit, and
The control means controls the switching means to switch from irradiation by the visible light irradiation means to irradiation by the ultraviolet irradiation means when it is detected by the sensor that the subject's eyes are closed. The face state imaging device according to claim 1, wherein the face state imaging device is characterized. The display means can display an image of the face of the subject imaged by the imaging means,
The said control means, after irradiating the said visible light irradiation means, it images with the said imaging means, The said image of the test subject's face imaged is displayed on the said display means. Face state imaging device. The control means controls the ultraviolet irradiation means to irradiate ultraviolet rays, and stores the subject's face by the storage means, and then controls the switching means to change the irradiation from the ultraviolet irradiation means to the visible light irradiation. The face state imaging apparatus according to claim 3, wherein the face image of the subject stored in the display unit is displayed by switching to irradiation by the unit. The storage means stores an image of a past subject's face imaged by the imaging means after being irradiated with ultraviolet rays by the ultraviolet irradiation means,
The control means includes an image of a past face stored by the storage means, and an image of a subject's face that has been irradiated with ultraviolet rays by the ultraviolet irradiation means and captured by the imaging means and stored in the storage means. The face state imaging device according to any one of claims 1 to 5, wherein the display unit displays both of them. The face state imaging apparatus according to any one of claims 1 to 6, wherein the control unit causes the display unit to display an image of the face of the subject in a horizontally reversed manner. A first step of detecting that the subject closed his eyes;
A second step of irradiating ultraviolet rays when it is detected in the first step that the subject's eyes are closed;
A third step of imaging the face of the subject when ultraviolet rays are irradiated in the second step;
A fourth step of storing the face image of the subject imaged in the third step;
A fifth step of displaying an image of the face of the subject stored in the fourth step;
A face state imaging method characterized by comprising:

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