JP2004105748A - Digital zooming skin diagnosing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital zooming skin diagnosing device which picks up an image of a subject 10 by less operations and a simple explanation, and can accurately determine parameters of the skin with less operation errors in a short period of time. <P>SOLUTION: Only one piece of a high resolution color image of the total face of the subject 10 is picked up by a digital camera 13 of six million pixels. Image data for a plurality of treatment regions is cut off from the one piece of the picked up image data, and parameter values for the skin are calculated. An expanded image 103 of the treatment region is displayed on a monitor screen, and an analysis line 109 overlapped with the expanded image 103 is dragged by a mouse, and the positions of the analysis line 109 is set. Thus, a graph 104 of the density distribution along the analysis line 109 is displayed together with the expanded image 103 side by side. On the graph 104 for the density distribution, threshold values are displayed, and parameters for the texture of the skin are calculated by counting a crossing number with the density distribution while applying a hysteresis to the threshold values. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a skin diagnostic apparatus that captures a face of a subject and calculates skin parameters from captured image data to create a diagnosis result.

A skin diagnostic device that photographs a part of the face of the subject and determines parameters such as skin color, texture, wrinkles, dullness, spots, roughness, temperature, elasticity, sensitivity, melanin, skin age, pore condition, and sebum volume. Has been put to practical use. Patent Literature 1 discloses a skin diagnostic apparatus that performs image processing on a skin image to determine wrinkle and texture parameters. Patent Literature 2, Patent Literature 3, Patent Literature 4, and the like also show skin diagnostic apparatuses that perform image processing on an enlarged skin image and determine a plurality of parameters.
JP-A-3-118036 JP-A-5-245113 JP-A-7-12544 JP-A-7-19839

Conventional skin diagnosis apparatuses use a hand-held camera head to perform imaging at predetermined diagnosis positions such as cheeks, chins, and eyes of the subject, so it is necessary to perform imaging by the number of diagnosis positions. . Therefore, even if a dedicated operator is used to operate the camera, errors in the imaging procedure and machine operation are likely to occur. there were.
SUMMARY OF THE INVENTION An object of the present invention is to provide a digital zoom skin diagnostic apparatus that can perform photographing with a small number of operations and a simple explanation and can accurately calculate skin parameters with few operation errors.

The digital zoom skin diagnosis apparatus of the present invention captures a high-resolution image of the entire face having a large output data size with a digital camera having a large number of pixels of an image sensor, and includes at least one processing region in captured image data of the captured face. In the digital zoom skin diagnostic apparatus that sets and cuts out the image data of the processing area and processes the cut-out image data of the processing area to calculate the parameters of the skin, the density distribution along the analysis line crossing the processing area is extracted. The parameter of the texture of the skin is obtained by counting the unevenness of the density distribution.

In the digital zoom skin diagnostic apparatus of the present invention, image data of a processing area is cut out from high-resolution large-capacity digital photographed image data of the entire face, and a density distribution along an analysis line crossing the processing area is extracted. By counting the minute irregularities of the above, the parameters of the texture of the skin are calculated.

In the digital zoom skin diagnostic apparatus of the present invention, since the parameter calculation is performed by cutting out the image data of the processing area from the captured image data of the entire face, even when obtaining parameters in a plurality of measurement areas, even when obtaining a plurality of types of parameters, Basically, the number of times of photographing is one, and there is no need to perform photographing for each analysis place. If the calculated parameter is not appropriate, the image data at another location is cut out from the same captured image data, or the same image data is re-analyzed by changing an analysis condition such as a threshold to be applied. Since the parameters can be corrected, there is no need to redo shooting.

Further, since the image data to be calculated is cut out to reduce the data amount, the diagnosis result can be output in a short time even if a complicated calculation is performed by an inexpensive calculation device.
In addition, compared to the case where imaging is performed at each of a plurality of diagnostic positions using a handheld camera head, the possibility of imaging errors, operation errors, and calculation errors is reduced, and time is saved. Can be obtained quickly. Since the burden on the operator is light and no special ability or qualification is required, the diagnosis cost is reduced.
Also, unlike partial images that once become unclear, nobody can tell who is the photograph, since the entire face image data that allows the examinee to be checked at a glance is saved, the necessary data can be selected without fail from the mixed data. , It is easy to provide an easy-to-understand output print. In addition, since the skin condition of the entire face remains as data, it is possible to extract information that cannot be accurately determined from a partial image, such as atopic disease, ultraviolet damage, or aging degree, or to visually determine the information.

The diagnosis result is output to the subject through a monitor screen or a printout by selecting a sentence by using the skin parameters alone or in combination or by graphing the skin parameters. Preferably, in order to enhance the visual impression and reliability, the diagnosis result is arranged in a form side by side with the digital zoom photograph of the processing area, and a reduced image of the entire face is also attached. The sentences and graphs of the diagnosis result are arranged in a format that can be understood in correspondence with these images, along with digital zoom photographs of the processing area in which the corresponding parameters have been calculated.
In addition, the system is similar to the ID photo box or photo sticker box, so that the subject can take his / her own image with a small number of operations and simple explanations, and can accurately determine the skin parameters with few operation errors. .

FIG. 1 is a side view of the digital zoom skin diagnostic apparatus of the first embodiment, FIG. 2 is an explanatory diagram of a monitor screen display, FIG. 3 is a flowchart of a diagnostic process, and FIG. 4 is an explanatory diagram of a parameter calculation method.

As shown in FIG. 1, the digital zoom skin diagnostic apparatus of the first embodiment is configured to have an appearance and an operation similar to those of an automatic ID photographing box or a photo sticker automatic photographing box. The inside of the digital zoom skin diagnostic apparatus of the first embodiment has a shielding wall 24 provided with a transparent glass window at the center.
And divided into a photographing room 11 and a machine room 12.
In the machine room 12, a digital camera 13 having 6 million pixels and a light source 19 for driving a high-frequency driven fluorescent lamp 20 are arranged. The angle of view 17 and focus of the digital camera 13 are adjusted so as to capture the entire face of the subject 10 sitting on the chair 22.
In addition to button 18, light source 19 and digital camera 13, coin slot 25 for collecting fees
Also, a liquid crystal monitor screen 16 arranged in the photographing room 11 and a printer 15 for printing out the judgment result are connected to the personal computer 14.

The chair 22 of the imaging room 11 is of a high-back type having a fixed and high back capable of adjusting the height of the seating surface. The face of the subject 10 can be moved by the digital camera 13 within an angle of view 17 (imaging range).
To the focal position toward. The narrow platform 21 regulates the position of the foot of the subject 10 and sits straight on the chair 22 to prevent the face from protruding left and right of the angle of view 17. A blue background screen 23 is disposed on the wall behind the subject 10 to facilitate automatic determination of the face outline from the captured image.

When the subject 10 sits on the chair 22 of the imaging room 11 and inserts a 500-yen coin into the coin slot 25, the light source 19 is activated, the fluorescent lamp 20 is turned on, and the subject 10 is photographed by the digital camera 13. The live image is displayed on the LCD monitor screen 16 and the camera enters a shooting standby state. If the face deviates from the angle of view 17 while viewing the live image, the subject 10 fits the angle of view 17 by adjusting the height of the chair 22 or the like.
Subsequently, when the patient 10 operates the button 18, the digital camera 13 operates to photograph the entire face of the patient 10, and the digital camera 13 immediately transfers the image to the personal computer 14 by about 2000 × 3.
One image data of 000 dots is transferred. The personal computer 14 executes image processing and parameter calculation in a state where the reduced whole image of the captured image is displayed on the liquid crystal monitor screen 16 to create a diagnosis result. Then, the diagnostic result is displayed on the liquid crystal monitor screen 16, and the diagnostic result is printed out from the printer 15 in parallel.
As shown in FIG. 2, enlarged images 32, 33, and 34 of three display areas cut out from the captured image data are displayed on the liquid crystal monitor screen 16 side by side with the reduced image 31 of the entire captured image. Also, frames 35, 36, and 37 corresponding to the processing area are displayed on the reduced image 31.

The processing area corresponds to the image data cut out to the optimal size for image processing to calculate the skin parameters. The actual size on the face is 2 cm square. Then, three locations are automatically set in correspondence with the eyes, eyes and cheeks.
On the other hand, the display area is determined to have a constant shape and size at a predetermined digital zoom magnification, corresponding to each processing area. The enlarged image 32 is an image obtained by digitally zooming image data of an actual 1.5 cm square area cut out from the inside of the processing area (frame 36) of the window to a 5 cm square and performing dot interpolation. The enlarged image 33 is a processing area of a margin (including a part of the eye).
This is an image obtained by digitally zooming the image data of the frame 35) to a 5 cm square.
The enlarged image 34 at the lower stage is an image obtained by digitally zooming an actual 3 cm square area centered on the cheek processing area (frame 37) to a 5 cm square. Slightly later than these images, the numerical values of the skin parameters and their descriptions are displayed in the enlarged images 32 corresponding to the processing regions on which the respective calculations were performed.
, 33, 34. The enlarged image 32 corresponds to the parameters of skin color and pores, the enlarged image 33 corresponds to the parameters of texture and wrinkles, and the enlarged image 34 corresponds to the parameters of stains and dullness.

The skin diagnosis by the personal computer 14 is executed in the sequence shown in FIG. When the coin slot 25 receives a coin in step 111, the light source 19 is driven in step 112 to enter a shooting standby state. When the operation of the switch 18 is received in Step 113, Step 11
Then, the process proceeds to step 4, where photographing and image data transfer are performed. Further, the digital zoom image is enlarged in step 115, and the image is displayed on the liquid crystal monitor screen 16 in step 116.
In step 117, the image data of the three processing regions cut out from the captured image data is processed to calculate the parameters of the skin.
In step 118, a diagnosis result is created by comprehensively judging the skin parameters calculated in the three processing regions, and printout data in which an image is combined with the diagnosis result is created.
In step 119, the printer 15 is operated to print out the diagnosis result to the person to be diagnosed 10. As in the case of the LCD monitor screen 16 shown in FIG. 2, three digital zoom images having different magnifications are arranged in the same size in the same manner as the liquid crystal monitor screen 16 shown in FIG. In addition, the results of diagnosis, problems, textures, spots, dullness, and pore conditions, treatment methods, recommended cosmetics, and care methods are described in more detail.

As shown in FIG. 4, a density distribution function in the horizontal direction is obtained from the image data of the processing area of the sun and cheeks, and the average value 41 of the function is obtained for each of the three primary colors of RGB to determine the skin color.
Further, the density of minute irregularities on the skin is obtained by setting two thresholds 42 and 43 for the density distribution function in the horizontal direction and counting the number of intersecting points. By repeating and averaging this operation for a plurality of horizontal traverse lines set in the measurement area of the chin and cheek, the parameters of the skin texture are calculated.

In addition, wrinkle parameters are calculated by performing the same operation on a plurality of vertical traversing lines set in the image data of the processing area of the eye-opening. Since the unevenness of the wrinkles has a longer period than the texture and the difference in the light and dark density on the image is large, the upper and lower thresholds are set wider than in the case of the texture and the number of intersecting points is counted.
Further, an XY two-dimensional density distribution of the processing area of the shin is created, and pores are extracted by an operation of changing the threshold value to binarize. The pore parameters are calculated from the density and size of the pores in the processing area.
Further, an XY two-dimensional density distribution is created from the R image data of the cheek processing area, and the threshold value is changed to binarize to extract the stain (melanin). The stain parameters are calculated from the stain size and number. Then, the dullness parameter is calculated from the flesh color and the soothing parameter.

The digital zoom skin diagnostic apparatus of the first embodiment configured as described above employs a digital camera of 6 million pixels to photograph an area of 20 cm in width and 30 cm in height and about 2000 × 3000.
Since a high-resolution color image of dots is photographed, a sufficient data amount can be secured for a parameter calculation of about 200 × 200 dots even with image data of a small processing area of 2 cm square. Also, 1
. Even if a digital zoom process for enlarging a 5 cm square to a 5 cm square is performed, it is possible to display and print out an image with a sufficient resolution.
Also, since image data of a plurality of processing areas is cut out from one piece of photographed image data and the parameter values of the skin are calculated, the number of times of photographing is one, and since the photographed image data is stored in the personal computer 14, It is also possible to set another measurement area (chin, nose, miken, etc.) from and calculate the parameter value.

In addition, even with photographed image data in which the contour of the face protrudes from the angle of view 17 and the measurement area cannot be automatically set, a person manually resets the measurement area from the remaining large image and calculates the parameter values again. It is also possible. Even if the calculated values of the parameters do not match the actual situation, it is possible to perform an overall observation of the photographed image data and analyze the reason for the mismatch. Even if a parameter value is abnormal due to a mole or hair, automatic processing for removing the abnormal value by slightly shifting the processing area and calculating the parameter value is also possible.
In any case, even if the judgment result is abnormal, there is no need to retake the image, and the collation of the photographed image data and the person who is difficult with the separated partial images is quickly and surely performed.
In addition, since the area of the processing area is 2 cm x 2 cm, an arrangement that avoids the unevenness and inclination of the face, the shadow of lighting, and the influence of hair on the face of a woman with a width of 13 cm and a length of about 20 cm without protruding from the contour. It is possible. Since the image data of the processing area is light data of 200 × 200 dots, even heavy calculations of complicated filter image processing can be completed in a short time.

In addition, since the position and orientation of the subject is controlled by the high-back chair 22 and the narrow step 21 to keep the position and orientation of the face constant, the contour of the face is unlikely to protrude outside the angle of view 17, The captured image data with a large amount of information obtained by capturing the face at the full angle of view 17 of the digital camera 13 can be obtained.
In addition, since the lighting is turned on at the same time as the coin is inserted, the digital camera 13 is activated after the button 18 is operated by the subject 10, and the fluorescent lamp 20 whose light quantity rises slower than the strobe light is stable. You can expect an improved lighting effect, and your eyes will not be closed at the same time as shooting.
Further, since the image data of the processing area is cut out from the photographed image data and the image is provided to the subject 10 through the liquid crystal monitor screen 16 and the printer 15, it is possible to provide information full of realism and persuasive power. The image data of the plurality of display areas are subjected to digital zoom processing at different magnifications and are provided with the images being adjusted to a common size, so that beautiful and beautiful image display and printout are achieved.

In addition, the enlarged images 32, 33, and 34 are assigned different enlargement magnifications, optimized for parameter understanding, and output side by side with parameter values calculated from image data of a processing area corresponding to the display area. Even if the subject 10 does not have any, the meaning of the tasteless numerical value can be intuitively understood by associating the numerical value with the image, and the persuasive power of the diagnostic result is improved.
Since the enlarged image of the display area is output side by side with the image of the entire face, the subject 10 is presented with a conclusion, reason, and evidence at the same time, is guided to a mental situation that cannot be refuted, and outputs an unacceptable diagnostic result. It is hard to receive complaints.
In addition, since the process from photographing to printing out is controlled automatically by a commercially available inexpensive personal computer 14, there is no need for a dedicated operator or manager, so even at a low charge of 500 yen, automatic photographing of ID photos and photo stickers is possible. High profits comparable to boxes can be secured.

In the digital zoom skin diagnostic apparatus of the first embodiment, the procedure from photographing to printout is automatically performed using the personal computer 14, but a system for performing counseling with a dedicated operator may be configured. For example, the LCD monitor screen 1 is placed on the outer wall of the machine room 12.
6, the switch 18 and the keyboard are arranged and the operator is seated. Then, while the live image is displayed on the liquid crystal monitor screen 16, the operator moves the subject 10 from outside the imaging room 11.
, The operator may operate the switch 18 to start shooting. The operator may ask the diagnosis subject 10 some questions, hear the contents of the meal, the amount of alcohol, the sleep time yesterday, the type of cosmetics used, and the like, and input them by keyboard.

Further, in the digital zoom skin diagnostic apparatus of the first embodiment, only the photographed image data photographed by the digital camera 13 is determined, but the skin moisture using a capacitance sensor as disclosed in JP-A-59-28646 is used. An amount measuring head may be provided to add the parameter of the amount of skin moisture to the judgment item. Further, a measuring head for measuring the amount of water evaporation as disclosed in JP-A-10-286283 or a measuring head for measuring the amount of sebum secretion using ground glass pieces as disclosed in JP-A-56-158639 is added. May be.
Further, the digital zoom skin diagnostic apparatus of the embodiment can also be used as a sales tool for selling cosmetics and a communication tool for beauty aesthetics.

FIG. 5 is an explanatory diagram of the digital zoom skin diagnostic apparatus of the second embodiment, and FIG. 6 is an explanatory diagram of a monitor screen display. Here, a counseling system using the minimum configuration of the notebook computer 54 and the digital camera 53 will be described.
As shown in FIG. 5, a digital camera 53 is displayed above a monitor screen 56 of the notebook computer 54.
The notebook computer 54 and the digital camera 53 are connected so that remote control operation, setting, and image data transfer can be performed. The notebook computer 54 performs these input / output operations, image processing, and parameter calculation, and executes diagnosis results. Special diagnostic imaging software to be created is included.
The digital camera 53 waits for a command from the notebook computer 54 to activate the strobe lighting 55 to capture a high-resolution color image of the entire face of the subject 10.
The counselor 50 operates the notebook computer 54 in a state of facing the subject 10,
The skin diagnosis and counseling of the subject 10 are performed. The counselor 50 instructs the posture and position of the subject 10 by watching the live image displayed on the monitor screen, and operates the notebook computer 54 to photograph the entire face of the subject 10. When the image transfer is automatically performed from the digital camera 53 to the notebook computer 54 following the photographing, a measurement screen as shown in FIG. 6 is displayed.

A reduced image 60 of the entire face of the subject 10 is displayed on the left side of the monitor screen 56, and the counselor 50 sets a square processing area by dragging a mouse pointer on the reduced image 60. The first set region A is automatically subjected to image processing to calculate wrinkle and flesh color parameters. The second set area B is automatically subjected to image processing to calculate stain and melanin parameters. Fixed frames of the areas A and B are displayed on the right side of the monitor screen 56, and the image data of the manually set areas A and B are digitally zoomed at a variable magnification until the two fixed frames are full, and the enlarged images 61 and 62 are displayed. To form
In addition, a question frame 63 having an entry frame for YES and NO is displayed below the enlarged images 61 and 62. The counselor 50 reads out the question in the question frame 63, listens to the answer from the subject 10, and checks the entry frame of YES and NO in the question frame 63 with a mouse.
Finally, when the diagnostic switch below the question frame 63 is clicked on with a mouse, a skin diagnosis result based on the plurality of calculated parameters and the question answer is displayed on the monitor screen 56. The skin diagnosis result includes a reduced image of the entire face on which the frame indicating the processing area is overlapped, and a plurality of digital zoom enlarged images corresponding to the diagnosis result. The counselor shows the monitor screen 56 on which the skin diagnosis result is displayed to the subject 10, and performs counseling.

The digital zoom skin diagnostic apparatus according to the second embodiment includes a notebook computer 54 and a digital camera 53.
Because it can be used with the minimum configuration, it can be carried freely and the diagnosis can be started immediately at the place of visit. In addition, since the system is completed simply by installing dedicated software using standard equipment on the market, inexpensive and quick delivery, no stock, correction of defects and correction of questions can be easily performed.
In addition, since the counselor 50 can perform skin diagnosis only by simple operation of a personal computer and reading out the question frame 63 displayed on the monitor screen 56, even a human resource with little expertise or practical experience can perform accurate and quick without erroneous operation or misjudgment. Diagnostic results are obtained.
In addition, since the position and area of the processing area are set manually, it is possible to take appropriate measures such as avoiding large moles and scars. A diagnostic result is obtained.

In the digital zoom diagnostic apparatus according to the second embodiment, the processing area is set manually.
The processing area may be automatically set by automatically detecting the contour and eyes of the face. Also, instead of dragging the mouse point to set a processing area of variable size, by dragging the frame image of a certain size displayed over the face image with the mouse and moving it to an arbitrary position, A processing area of a fixed size may always be set.
Further, without fixing the digital camera 53 to the notebook computer 54, the digital camera 5
A mechanism with a motor capable of rotating the direction of 3 about 10 degrees in the horizontal and vertical directions is provided, and the mechanism with the motor can be operated by remote control with a notebook computer 54 so that the shooting range of the digital camera 53 can be moved up, down, left and right. Is also good.
For example, a live image captured by the digital camera 53 is displayed in a small window on a personal computer screen, and the diagnostic software is partially modified so that the direction of the digital camera 53 can be operated by a cursor key on a keyboard. The operator 50 operates the cursor keys with reference to the live image so that the entire face of the subject 10 fits in the center of the screen with good balance.
Thus, the entire face can be guided to the center of the photographing range of the digital camera 53 without moving the subject.

FIG. 7 is an explanatory diagram of a digital zoom skin diagnostic apparatus according to a third embodiment, FIG. 8 is an explanatory diagram of lighting switching,
FIG. 9 is an explanatory view of a photographing screen, FIG. 10 is an explanatory view of an analysis screen, and FIG. 11 is a flowchart of a skin diagnosis sequence. Here, a skin diagnosis system that continuously performs visible light imaging and ultraviolet light imaging will be described.
As shown in FIG. 7, a single-lens reflex type 12-megapixel digital camera 73 is connected to a notebook computer 74 and is set with shutter timing, shutter speed, aperture value, zoom amount, other shooting conditions and output specifications, Controlled.

The lighting controller 71 is connected to the notebook computer 74 and is controlled by dedicated diagnostic software. The illumination control unit 71 supplies high-frequency power to the fluorescent lamp 80 and the black light 79 to suppress the fluctuation of the illumination amount within the shutter time, and avoids the fluctuation of the rising light amount by always lighting.
The illumination control unit 71 drives the motor 72 with reference to the output of a position detection sensor (not shown), rotates the table 76, and switches illumination of the fluorescent lamp 80 and the black light 79. The fluorescent lamp 80 has a daylight color, and has a diffuser plate 81 arranged to form a surface light source.
The motor 72 rotates the pulley 75 to drive the timing belt 77,
6, the fluorescent lamp 80 and the black light 79 are alternately moved to positions where the entire face of the subject 10 is illuminated, as shown in FIG.
The space from the digital camera 73 to the subject 10 is housed in a dark box 84 designed so that the output light of the fluorescent light 80 and the black light 79 facing backward does not directly enter the digital camera 73, and is behind the subject 10. Is provided with a blackout curtain that blocks incident light from behind.
The subject 10 puts his / her chin on a chin rest 78 fixed to the edge of the floor surface of the dark box 84 and faces the digital camera 73 directly. The chin rest 78 is positioned at the focal position of the digital camera 73 so that the entire face of the subject is included in the angle of view.

A diagnostic screen is displayed on the screen of the notebook personal computer 74 on which the diagnostic software has been started, as shown in FIG. 9. When the analysis button 97 on the diagnostic screen is clicked, the diagnostic screen switches to the analysis screen shown in FIG.
On the diagnostic screen, a monitor live image 92 captured by the digital camera 73 is displayed. When the photographing button 95 is clicked in this state, the digital camera 73 performs photographing, and the reduced overall image 91 of the face of the subject 10 is displayed with the chin resting on the chin rest 78. Setting frames 85, 86, and 87 for the processing area are displayed so as to overlap the reduced entire image 91.
, 86, 87 can be moved to any position by dragging with a pointer. On the right side of the diagnostic screen, an enlarged image 93 obtained by digitally zooming the processing area of the setting frames 85, 86, and 87 is displayed.
The reduced whole image 91 can be switched to a visible light image or an ultraviolet light image by selecting a tab on the upper left. In the case of the reduced whole image of the ultraviolet light image, a setting frame of a processing region is displayed below the eye (above the cheekbone) and the nose (not shown). The position of the setting frame can be adjusted by operating the pointer similarly to the case of the visible light image, and the enlarged image 93 can be switched to an image of each processing area by selecting a tab.

The analysis button 97 is displayed in a state where the photographing of the visible light and the ultraviolet light is completed and the reduced whole image 91 is displayed.
Clicking displays the analysis screen shown in FIG. Then, the image data of each processing region of the visible light image and the ultraviolet light image is processed, and various parameters are calculated.
Then, when the confirmation button 108 on the analysis screen is clicked, the diagnosis screen is displayed again.
The wrinkle, texture, skin color, dullness, and uniformity parameter values obtained in the three processing regions of the visible light image and the parameters of the spot, freckle, sebum, and pores obtained in the three processing regions of the ultraviolet light image are notes. The diagnostic result 9 on the diagnostic screen is compared with the analysis result data stored in the personal computer 74.
4
When the print button 98 is clicked while the diagnosis result 94 is displayed, the reduced whole image 91 of visible light, the enlarged image 93 of each processing area, and the analysis result are arranged on one sheet, and the color print sheet is printed out. Be executed.

By the way, when the confirmation button 108 is clicked on the analysis screen after proceeding with the photographing and the analysis, the photographed image data of the visible light and the ultraviolet light is stored in one diagnostic folder together with the image data of each processing region, various calculated parameters, and the analysis result. It is automatically saved under the name of the diagnosis number.
Therefore, the notebook personal computer 74 stores a large number of diagnostic folders for each one imaging and each diagnosis.
Clicking the read button 96 on the diagnostic screen displays a list of these diagnostic folders. If one is selected from this folder, image data of visible light and ultraviolet light can be called from the diagnostic folder to perform analysis and diagnosis again. .
However, when the old image data is called, the automatic saving is not performed when the confirmation button 108 is clicked on the analysis screen. When the new diagnosis result needs to be saved, the save button 99 is clicked on the diagnosis screen. A separate save operation is required.
As a result, the processing area set in the previous analysis can be reset, the image data can be subjected to manual image processing and the analysis can be performed again, and the diagnosis result 94 can be rewritten and overwritten and saved in the original folder. . Alternatively, a new diagnostic folder with a different name can be created while leaving the original folder as it is.

As shown in FIG. 10, the analysis screen includes an enlarged visible light image 103 having undergone shading correction.
The analysis line 109 in the horizontal direction and the analysis line 110 in the vertical direction are displayed in a superimposed manner. For the selected processing region, a red density distribution 104 and its differential value distribution 105 along a horizontal analysis line 109, and a vertical analysis line 11
A red density distribution 106 along 0 and its differential value distribution 107 are displayed. A threshold value indicated by a broken line is set in the density distribution and the differential value distribution.
The number of times the threshold value has hysteresis and crosses the density distribution and the differential value distribution is counted and integrated for all the analysis lines 109 and 110 of the enlarged image 103. The integration result in the differential value distribution is displayed numerically in the texture table 101 separately in the vertical and horizontal directions, and the integration result in the density distribution is displayed numerically in the roughness table 100 in the horizontal and vertical directions. The ratio of the number of horizontal crosses to the number of vertical crosses is also displayed in tables 100 and 101, respectively. In other words, the intervals between the crosses appearing in the differential value distribution correspond to small irregularities or textures, the intervals between the crosses appearing in the density distribution correspond to large undulations, ie wrinkles, and the horizontal / vertical ratio indicates the directionality of the wrinkles and textures. ing.
Until the confirmation button 108 is clicked, the horizontal analysis line 109 and the vertical analysis line 110 of each enlarged image can be moved to an arbitrary height position by dragging with a pointer. Each time the vehicle moves, various parameters based on the threshold value are recalculated, and Table 101,
Each numerical value of 102 and 103 is rewritten.

In addition, the average density of red, green, and blue is calculated for a plurality of small areas set in the enlarged image, and the standard deviation of the average density is calculated. Is done. Further, the skin color is obtained in the processing area of the cheeks and the gray level of the skin color is calculated and entered in the dull frame.
Further, red density distribution 121, green density distribution 122, and blue density distribution 12 of the pixels of the entire enlarged image
3 is also displayed in a graph, and the variation in skin color is visually indicated by the shape of the peak.

As shown in FIG. 11, when the diagnostic software of the personal computer 74 is started in step 130, the motor 72 is driven in step 131 to turn the fluorescent lamp 80 toward the subject 10. Subsequently, in step 132, the power supply to the fluorescent lamp 80 and the black light 79 is started to be constantly turned on.
In step 133, the diagnostic screen shown in FIG.
Is displayed. If the photographing button 95 is clicked in step 134, photographing and analysis in step 135 and subsequent steps are performed. If the read button 96 is clicked in step 150, reanalysis in step 151 and subsequent steps is performed.

In step 135, the first shutter is opened to perform visible light imaging, and immediately in step 136, the image is transferred to the notebook computer 74. Subsequently, in step 137, the motor 72 is driven to rotate the table 76 so that the black light 79 is directed to the subject 10, and at the same time, the second shutter is opened in step 138 to perform ultraviolet light imaging. Then, in step 139, the motor 72 is driven in the reverse direction, and the table 76 is rotated to return the fluorescent lamp 80 to a state where the fluorescent lamp 80 is directed toward the subject 10.
Thereafter, in step 140, the ultraviolet light image data is transferred to the notebook computer 74.
When the transfer is completed, the reduced whole image 91 is displayed on the diagnosis screen in step 141, and the operator
The entire reduced image 91 and the enlarged image 93 of visible light and ultraviolet light are checked, and if necessary, the positions of the processing area setting frames 85, 86, and 87 are adjusted.

When the analysis button 97 is clicked in step 142, the process proceeds to step 143 and FIG.
Is displayed, and in step 144, parameters are calculated using the same threshold value as the previous analysis. The operator switches the magnified image 103 and changes the tables 101, 102, 1 each time.
03, and if necessary, the density distributions 104 and 106 and the differential value distributions 105 and 10
The threshold value is adjusted on the graph of No. 6.
When the confirmation button 108 is clicked in step 145, a diagnosis result is created in step 146 based on the calculated parameter values. Further, the enlarged image data, the parameter values, and the diagnosis results 94 in the imaging data processing area up to this point are collected and stored in one folder with a diagnosis number as a name. In step 148, a diagnostic screen in which the diagnostic result 94 is entered is displayed, and the system enters a standby state for the next imaging or reanalysis.

On the other hand, when the read button 96 on the diagnostic screen is clicked in step 150, a list of past folders is displayed, and when one is selected and opened, the visible light image data and the ultraviolet light image data of the folder are read. Then, at step 151, the reduced whole image 91 is displayed.
At this time, the setting frames 85, 86, 87 and the respective threshold values in the previous analysis are also reproduced.
Then, when the confirmation button 108 is clicked in step 152, an analysis screen is displayed in step 153. The operator moves the setting frames 85, 86, and 87 on the reduced whole image 91 of the diagnostic screen, resets the thresholds on the density distributions 104 and 106, and the differential value distributions 105 and 107 on the analysis screen. Then, a parameter different from the previous one is calculated, and a different diagnosis result 94 is obtained.
Can be led.
When the confirmation button 108 is clicked in step 155, a diagnosis result 94 is created and a diagnosis screen is displayed. If the diagnostic result 94 has changed in the intended direction, the operator presses the save button 99 to display a list of diagnostic folders, and determines whether to overwrite the previous diagnostic folder or to newly record and save the new diagnostic folder. Select and execute.

According to the digital zoom skin diagnostic apparatus of the third embodiment, since the fluorescent image is captured by illuminating with the black light 79, the fluorescent image is used, and parameters such as spots, sebum, moisture, thickness of the stratum corneum, pores, and the like are used. Can be diagnosed accurately. Therefore, the skin condition can be more comprehensively evaluated, and the amount of sebum and the amount of water can be diagnosed without separately providing a moisture sensor and a sebum sensor.
In addition, since the fluorescent lamp 80 and the black light 79 are always lit on the table 76, instability after the start of discharge can be avoided as compared with the case where the fluorescent lamp 80 and the black light 79 are lit for each photographing. Can be executed.
Further, the black light 79 is directed to the subject 10 immediately before the ultraviolet light imaging, and after the imaging, the black light 79 is first departed prior to the image transfer, thereby minimizing the time required for directing the subject 10 to the unnecessary. Avoids exposure to UV radiation, so that the subject does not suffer from unwanted sunburn or UV allergy.
In addition, since the fluorescent lamp 80 and the black light 79 are switched by rotating the table 76, the arrangement space is saved, and the face of the subject 10 can be efficiently illuminated nearby while the optical path of the digital camera 73 is sufficiently secured. Since the entire apparatus including the shielding wall of the optical system is compactly configured and the driving mechanism is simple, it is possible to provide a system which is inexpensive, easy to use, and advantageous to carry.

In addition, since the chin rest 78 is provided so that the position of the face of the person to be diagnosed is constantly reproduced every time, fluctuations in the illumination state and magnification of the face are reduced, and the focus of the digital camera 73 is hardly shifted.
Also, tabs are provided in the reduced whole image 91 and the enlarged image 93 so that a plurality of images can be selected and displayed, and a visible light image and a cheek image that are frequently observed and adjusted are arranged on the foreground. A large image that is easy to see compared to is available, and selection, observation, and setting can definitely be performed efficiently and quickly.

Also, the setting frames 85, 86, 87 and threshold values reproduce the same as those at the time of the previous shooting analysis, and can be adjusted on the reduced whole image 91, the density distributions 104, 106, etc. as necessary. There is less error due to the setting than in the case of resetting each time, and when there are confusion factors such as moles and hair, flexible measures such as setting the setting frames 85, 86 and 87 by avoiding them are provided. It is possible.
In addition, the image data and the diagnostic results are collectively recorded for each imaging analysis in one diagnostic folder,
Since the diagnosis folder can be opened later and re-analysis and re-diagnosis can be performed using the same image data, when a diagnosis result that does not match the actual situation is obtained, the same diagnosis subject 10 is not called and the imaging is not repeated. It is possible to analyze the cause or correct the diagnosis result in a way that matches the actual situation. Then, even in the case of re-analysis, the analysis conditions such as the threshold value are also collectively reproduced first, so that the analysis and the modification of the diagnosis result are further easier.

In the digital zoom diagnostic apparatus of the third embodiment, the illumination is switched between visible light and ultraviolet light using the fluorescent lamp 80 and the black light 79, but the visible light may be replaced with natural light, white LED, or strobe light. Alternatively, ultraviolet light may be generated by a special strobe, LED, or laser.
Further, a combination of irradiation contents different from the third embodiment, such as visible light and infrared light, visible light and radio wave (for detecting moisture), monochromatic light and white light, may be used.
Further, the processing area is set manually, but the processing area may be automatically set by automatically detecting the contours and eyes of the face. Also, instead of dragging the mouse point to set a processing area of variable size, by dragging the frame image of a certain size displayed over the face image with the mouse and moving it to an arbitrary position, A processing area of a fixed size may always be set.

It is a side view of the digital zoom skin diagnostic device of the first embodiment. It is an explanatory view of a monitor screen display. It is a flowchart of a diagnostic process. It is explanatory drawing of the calculation method of the parameter of skin. It is explanatory drawing of the digital zoom skin diagnosis apparatus of 2nd Example. It is an explanatory view of a monitor screen display. It is explanatory drawing of the digital zoom skin diagnosis apparatus of 3rd Example. It is explanatory drawing of lighting switching. It is an explanatory view of a diagnostic screen. It is an explanatory view of an analysis screen. It is a flowchart of diagnostic software.

Explanation of reference numerals

10 person to be diagnosed 11 imaging room 12 machine room 13 digital camera 14 personal computer (control means, arithmetic means)
15 Printer (output means)
16 LCD monitor screen (output means)
17,57 Angle of view (shooting area)
18 Switch 19 Light source 20, 80 Fluorescent lamp (high frequency drive)
21 Step platform (regulatory means, narrow)
22 chairs (regulatory means, high-back type)
23 Blue background screen 30 Background 31, 60 Reduced image 32, 33, 34, 61, 62 of entire face Enlarged image (corresponding to display area)
35, 36, 37 frames (processing area)
41 Average value 42, 43 Threshold value 50 Counselor 53, 73 Digital camera 54, 74 Notebook computer 55 Strobe 56 Monitor screen 63 Questionnaire 64 Diagnostic button 70 Skin diagnostic system 71 Certification control unit 72 Motor 75 Pulley 76 Table 77 Timing belt 78 Chin rest 79 Black light 81 Diffusion plate 84 Dark box 85, 86, 87 Frame 91 Reduced whole image 92 Live image 93 Enlarged image 94 Analysis result 95 Shooting button 96 Read button 97 Analysis button 98 Print button 99 Save button 100, 101, 102 Table 103 Enlarged image 104, 106 Density distribution 105, 107 Differential value distribution 109, 110 Analysis line

The digital zoom skin diagnostic apparatus of the present invention sets at least one processing region in photographed image data of the entire face photographed by a digital camera, cuts out the image data of the processing region, and processes the image data of the cut out processing region. In a digital zoom skin diagnostic device that calculates the parameters of the skin, a high resolution image of the entire face with a large output data size is captured by a digital camera with a large number of pixels of the image sensor, and an analysis line that can be arbitrarily set on the image is created. Along with the enlarged image of the overlapped processing area, a graph of the density distribution along the analysis line is displayed on the monitor screen, and the unevenness of the density distribution is counted based on the threshold value set on this graph. This is for obtaining parameters.

In the digital zoom skin diagnostic apparatus of the present invention, image data of a processing region is cut out from high-resolution large-capacity digital photographed image data of the entire face, and a density distribution along an analysis line crossing the processing region is extracted. By counting the minute irregularities in the distribution, the texture parameters of the skin are calculated.
On the monitor screen, an enlarged image of the processing area and a graph of the density distribution associated with the analysis line whose position can be changed are displayed together. Can be confirmed by a graph. In addition, since the threshold for obtaining the parameters of the skin is set on the graph of the density distribution, it is possible to refer to the enlarged image and the density graph when setting the threshold.

In the digital zoom skin diagnosis apparatus of the present invention, the enlarged image and the graph of the density distribution can be displayed on the same screen, and the threshold can be set on the graph. Therefore, the threshold can be adjusted as necessary, and the mole and hair can be adjusted. If there is such a confusion factor, it is possible to flexibly cope with the problem by setting a processing area while avoiding the confusion factor.
In addition, since the image data of the processing area is cut out from the captured image data of the entire face and the parameter calculation is performed, the number of times of capturing is basically 1 regardless of whether the parameter is obtained in a plurality of measurement areas or a plurality of types of parameters. It only needs to be performed once, and there is no need to take images for each analysis location. If the calculated parameter is not appropriate, the image data at another location is cut out from the same captured image data, or the same image data is re-analyzed by changing an analysis condition such as a threshold to be applied. Since the parameters can be corrected, there is no need to redo shooting.

Claims (10)

A high-resolution image of the entire face having a large output data size is captured by a digital camera having a large number of pixels of an image sensor, and at least one processing area is set in the captured image data of the entire captured face to convert the image data of the processing area. In the digital zoom skin diagnostic apparatus that calculates the parameters of the skin by processing the image data of the processing area that has been cut out,
A digital zoom skin diagnostic apparatus characterized by extracting a density distribution along an analysis line traversing a processing area, and calculating skin texture parameters by counting unevenness of the density distribution. The digital zoom skin diagnosis device according to claim 1,
A digital zoom skin diagnosis apparatus characterized in that a threshold value larger than the amplitude of unevenness is set in a density distribution along an analysis line traversing a processing region, and wrinkle parameters are obtained by counting unevenness waviness. The digital zoom skin diagnosis device according to claim 1,
A digital zoom skin diagnostic apparatus characterized in that a threshold value is set for a differential function of a density distribution along a straight line traversing a processing area to count unevenness of the density distribution. A high-resolution image of the entire face is photographed with a digital camera, at least one processing region is set in the photographed image data of the photographed entire face, and image data of the processing region is cut out. The image data of the cut out processing region is processed. A digital zoom skin diagnostic device that calculates skin parameters by
A digital camera having a large output data size with a large number of pixels of an image sensor arranged toward the subject;
A monitor screen for displaying an analysis screen for setting the arithmetic processing of the skin parameters,
A digital zoom skin diagnostic apparatus comprising: a calculating means for forming a graph of a density distribution along an analysis line crossing the processing area, and displaying the graph on a monitor screen along with an enlarged image of the processing area on which the analysis line is superimposed. . The digital zoom skin diagnostic device according to claim 4,
You can drag the analysis line on the monitor screen and move it to any position in the processing area, and when you move the analysis line, a graph of the concentration distribution along the analysis line at the new position is created and replaced with the previous graph and displayed A digital zoom skin diagnostic apparatus characterized by being performed. The digital zoom skin diagnostic device according to claim 4,
A digital zoom skin diagnostic apparatus characterized by displaying a graph of red density distribution, green density distribution, and blue density distribution indicating variations in red, green, and blue density values over the entire processing area on the same monitor screen. A high-resolution image of the entire face is photographed with a digital camera, at least one processing region is set in the photographed image data of the photographed entire face, and image data of the processing region is cut out. The image data of the cut out processing region is processed. A digital zoom skin diagnostic device that calculates skin parameters by
A digital camera having a large output data size with a large number of pixels of an image sensor arranged toward the subject;
A monitor screen for displaying an analysis screen for setting the arithmetic processing of the skin parameters,
Calculation to extract the density distribution along the analysis line crossing the processing area, display the density distribution graph with the applied thresholds superimposed, and the parameter values calculated based on the thresholds side by side on the monitor screen And a digital zoom skin diagnostic apparatus. The digital zoom skin diagnosis device according to claim 7,
Drag the threshold up and down on the monitor screen to move it to any position in the density distribution.
A digital zoom skin diagnostic apparatus wherein a parameter value calculated based on a threshold value at a new position is displayed by replacing the previous parameter value when the threshold value is moved. The digital zoom skin diagnosis device according to claim 7,
A digital zoom skin diagnostic apparatus characterized in that a threshold value has hysteresis and a skin parameter is obtained by counting the number of crossings between the threshold value and the density distribution. The digital zoom skin diagnostic device according to claim 4 or 7,
A diagnostic screen is displayed on the first monitor screen that displays the reduced whole image of the entire face with the setting frame corresponding to the processing area superimposed, the enlarged image of the processing area, and the diagnostic result side by side, and executes the analysis command operation on the diagnostic screen Then, an analysis screen is displayed in place of the diagnosis screen.

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