JP4137559B2 - Full face observation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a full-face observation apparatus for judging the skin property of a face.
[0002]
[Prior art]
It is known that when the face is irradiated with ultraviolet rays, the skin exhibits different colors depending on the skin properties.
For example, melanin, which causes spots and freckles, is a light absorber, so it absorbs ultraviolet light and exhibits a dark color, and oily skin and seborrheic sites absorb ultraviolet light from unsaturated fatty acids contained in sebum. Because it emits red fluorescence, it exhibits an orange color, normal skin exhibits the color of black light that irradiates ultraviolet rays (whiteish purple), and dry skin and lack of moisture display a whitish purple-like powdery color. The aging keratin exhibits a scaly white color.
[0003]
Therefore, by observing the face irradiated with ultraviolet illumination light, the skin that can only be seen as skin color with visible light exhibits various colors, so the skin properties can be judged based on the color, and such observation The apparatus is used in a cosmetic salon (cosmetics store) or the like to objectively determine a customer's skin property or to recommend a cosmetic that is optimal for the customer's skin property.
[0004]
3 and 4 show such a conventional full-face observation apparatus. This full-face observation device 41 is provided with a mirror 44 on the bottom side of a casing 43 in which black lights 42, 42 for irradiating ultraviolet illumination light are arranged on both the left and right sides, and an observation window 45 on the front side. With the body 46 flipped up horizontally and opened, a face is placed in a dark room 48 formed by lowering the dark curtain 47 housed on the back side, and the face irradiated with the black light 42 is reflected by the mirror 44 and reflected on itself. At the same time as the observation, a third party can observe from the observation window 45.
[0005]
[Problems to be solved by the invention]
By the way, when observing using the full-face observation device 41, if the lid 46 is flipped up horizontally, the dark curtain 47 housed on the back side of the cover 46 hangs down to form a dark room 48. This is not only very troublesome because the large black curtain 47 must be folded and housed in the downwardly facing lid body 46, and the black curtain 47 must be folded neatly and carefully closed. There is also the trouble of sandwiching the black curtain 47 between the lid 46 and the casing 43.
[0006]
In order to eliminate the influence of outside light, the darkroom 47 is formed by hanging the dark screen 47. However, since the lower surface of the dark room 48 is open, the outside light leaks into the dark room 48, and the outside light There was a problem that the influence of could not be completely eliminated.
[0007]
Furthermore, since the entire face observing device 41 irradiates ultraviolet rays, it must be observed with protective glasses. Therefore, even if an attempt is made to visually recognize the color of the face reflected on the mirror 44, the color of the face observing device 41 depends on the protective glasses worn by the user. There was a problem that the change in skin color due to ultraviolet rays could not be accurately grasped.
In addition, when the light-colored protective glasses are used, the color of the face reflected on the mirror 44 can be observed relatively accurately. It is impossible to confirm the skin properties by remembering the reflected skin color.
[0008]
Therefore, the present invention eliminates the need for preparations and cleanup before use, and enables accurate grasp of changes in the skin due to ultraviolet rays, so that skin properties can be confirmed even after the observation is completed. This is an objective issue.
[0009]
In order to solve this problem, the present invention provides an all-face observation apparatus in which an imaging camera for capturing a face is built in a dark box in which an opening for inserting a face is formed. It is in contact with the periphery of the face cushion for closing the gap between the opening and the face is provided, in the dark box, relative to the opening from outside the field of view of the imaging camera, switching the ultraviolet illumination light and visible light illumination light A lighting device that can be turned on is built in, and a composite image is generated based on the image signals of the ultraviolet illumination image and the visible light illumination image captured by the imaging camera, and the ultraviolet illumination image, the visible light illumination image, and the composite image are output, respectively. The image processing apparatus is provided.
[0010]
According to the present invention, when a face is put in the opening, the face cushion is brought into contact with the periphery of the face, so the gap between the opening and the face is blocked, and external light does not leak into the dark box. There is no need to form a dark room with a black curtain, and no troublesome preparatory work such as putting in and out of the black curtain or tidying up work is required.
Then, if a face is put in the opening while being irradiated with ultraviolet light and the image is taken by an imaging camera, the face irradiated with ultraviolet light is imaged.
Therefore, by displaying this as an image on a display or printing it, the user can check his / her skin properties from the skin color at any time.
[0012]
In addition, it is necessary to wear protective glasses because the ultraviolet rays are irradiated at the time of imaging, but since the images can be viewed with the naked eye, the color of the skin is not changed by the protective glasses, and the changes in the skin color due to the ultraviolet rays are accurately detected. Can be observed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory diagram showing an example of a full-face observation apparatus according to the present invention, and FIG. 2 is an explanatory diagram showing an example of a captured image.
[0014]
An all-face observation apparatus 1 shown in FIG. 1 has an opening 3 for entering a face in front of a casing 2 that is a dark box, and an imaging camera 4 that images a face looking into the inside from the opening 3. A lighting device 5 for irradiating the opening 3 with ultraviolet illumination and visible light illumination from outside the visual field range A is incorporated.
A face cushion 6 is provided around the opening 3 so as to be in contact with the periphery of the face and block the gap between the opening 3 and the face.
[0015]
The imaging camera 4 incorporates an imaging element such as a CCD element and can output an image signal to the outside.
The illumination device 5 includes a black light 5a serving as an ultraviolet illumination light source and a high-intensity white LED 5b serving as a visible light illumination light source.
[0016]
The imaging camera 4 and the illumination device 5 are connected to the control device 7, and when a shutter switch (not shown) is pressed, the black light 5a is turned on to pick up an ultraviolet illumination image, and the black light 5a is turned off immediately. Then, the high-intensity white LED 5b is turned on to capture a visible light illumination image.
As a result, the ultraviolet illumination image and the visible light illumination image are captured substantially simultaneously, and the respective image signals are output to the image processing device 8.
[0017]
The image processing device 8 stores the image signals of the ultraviolet illumination image VI and the visible light illumination image BI, and generates a composite image GI based on these image signals (see FIG. 2).
The ultraviolet illumination image VI is a blue-purple image as a whole except for the “aged keratin” portion (not shown) that exhibits white color and the “oily skin” portion H ₃ that exhibits orange color. It is difficult to distinguish the “normal skin”, “dry skin”, and “melanin” parts H _{0 to} H _{2 of the system} .
Therefore, the image processing device 8 generates an adjusted image signal in which the color tone of the visible light illumination image BI is adjusted to purple close to normal skin, takes the difference between the image signal of the ultraviolet illumination image VI and the adjusted image signal, and obtains the obtained difference. By adjusting the brightness and contrast of the image signal, the composite image GI is divided into a bright “normal skin” portion H ₀ , a midtone “dry skin” portion H _1, and a dark “melanin” portion H _2. Will be projected.
[0018]
Then, if the ultraviolet illumination image VI, the visible light illumination image BI, and the composite image GI thereof are output to a display device (not shown) or printed out, these three images can be obtained without wearing protective glasses. It can be observed in comparison, and the skin properties can be accurately grasped.
[0019]
The above is an example configuration of the present invention, and its operation will be described next.
First, when imaging a face, putting on protective glasses, putting the face in the opening 3 formed in the front of the casing 2 and pressing a shutter switch (not shown), the black light 5a is turned on and the imaging camera is turned on. 4, the ultraviolet illumination image VI is captured, and then the high-intensity white LED 5 b is turned on, and the imaging camera 4 captures the visible light illumination image BI.
In this case, the face cushion 6 hits the periphery of the face, and the gap formed between the opening 3 and the face is closed, so that external light does not leak into the casing 2 and is affected by the external brightness. The image can always be taken under the same conditions with the illumination light of the illumination device 5.
Further, since the illumination device 5 is provided outside the visual field range A of the imaging camera 4, the black light 5a and the high-intensity white LED 5b do not appear in the image.
[0020]
When the imaging is completed, the image signal of the ultraviolet illumination image VI and the visible light illumination image BI is input to the image processing device 8, and an adjusted image signal in which the color tone of the visible light illumination image BI is adjusted to purple close to normal skin is generated. By taking the difference between the image signal of the UV illumination image VI and the adjusted image signal and adjusting the brightness and contrast of the obtained difference image signal, the bright “normal skin” part and the “dry skin” part of the intermediate tone As a result, a composite image GI that is distinguished by dark “melanin” portions is generated.
[0021]
Then, three images of the UV illumination image VI, the visible light illumination image BI, and the composite image GI are output and can be displayed on a display device (not shown) or printed out as necessary. since, by visually comparing each image, white projected portion is "aged horny 'based on the skin tone of the UV image, the portion H ₃ projected on the orange can be determined that the" oily skin ".
[0022]
Further, the density of the purple, can be identified as part H ₂ that there are many "melanin" in the epidermis and subcutaneous, the portion H ₁ of the "dry skin", the portion H ₀ of the "normal skin".
However, since all of them are purple, and there are some parts that are difficult to distinguish if not used, the three can be relatively easily distinguished by looking at the composite image GI.
[0023]
Further, in the visible light illumination image BI, only the spot / sobacus H ₄ exposed on the epidermis is imaged, and the “melanin” portion H ₂ hidden under the skin is not imaged, but the ultraviolet illumination image VI is hidden under the skin. The portion H ₂ of “melanin” is projected black.
Accordingly, by comparing the ultraviolet illumination image VI and visible light illumination image BI, or by observing the composite image GI, it can be determined that the areas of future spots and freckles close portions of H ₂ dark purple.
[0024]
In addition, since no dark curtain is used, even when imaging is completed and the full-face observation device 1 is cleared, there is no need for the trouble of folding the dark curtain.
[0025]
【The invention's effect】
As described above, according to the present invention, when a face is put into the opening of the dark box, the gap is blocked by the face cushion, so that external light does not leak into the dark box. There is no need to clean up after forming a dark room or clearing the dark curtain after use, and because it can capture images while completely blocking external light, it can accurately grasp changes in skin due to ultraviolet rays, Since the image can be seen after imaging, the skin property can be confirmed at any time.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an example of a full-face observation apparatus according to the present invention.
FIG. 2 is an explanatory diagram illustrating an example of a captured image.
FIG. 3 is an explanatory view showing a conventional apparatus.
FIG. 4 is a cross-sectional view showing a conventional device.
[Explanation of symbols]
1 ... All face observation device 2 ... Casing (dark box)
3 ......... Opening part 4 ... Imaging camera 5 ......... Lighting device 5a ... Black light 5b ... High brightness white LED
6 ... Face cushion 7 ... Control device 8 ... Image processing device

Claims (1)

In a full face observation device in which an imaging camera that captures an image of the face is built in a dark box in which an opening for inserting a face is formed ,
Around the opening is provided a face cushion that abuts the periphery of the face and closes the gap between the opening and the face,
In the dark box, there is a built-in illumination device capable of switching and lighting the ultraviolet illumination light and the visible illumination light with respect to the opening from outside the field of view of the imaging camera,
Wherein generating the composite image based on the image signal of the captured UV illumination image and visible light illumination image by the imaging camera, UV illumination image, further comprising an image processing apparatus which respectively output a visible light illumination image and the synthesized image A full-face observation device.

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