KR102364191B1 - Hair counter for hair loss treatment evaluation and operating method thereof - Google Patents

Abstract

Disclosed are a hair counter for evaluating hair loss treatment and an operating method thereof. The operation method of the hair counter includes the steps of setting a reference photographing equipment and a reference resolution, receiving and outputting an image for correction generated by photographing a grid scale box with a new photographing equipment in addition to the reference photographing equipment, and outputting it Steps of receiving touch input for two vertices in the diagonal direction of the grid scale box in the corrected image, extracting the coordinate values of the two vertices that were touched, using the extracted coordinate values of the two vertices, on the image for correction Calculating the horizontal and vertical lengths of the grid of the grid scale box as reference length correction values, and correcting the input scalp image using the calculated reference length correction values.

Description

Hair counter for hair loss treatment evaluation and its operating method {Hair counter for hair loss treatment evaluation and operating method thereof}

The present invention relates to a hair counter for evaluating hair loss treatment and an operating method thereof.

Hair loss refers to the natural loss of hair that has stopped growing according to the growth cycle, and until just a few years ago, severe hair loss was considered a genetic phenomenon that mainly occurs in men. However, in recent years, hair loss has been commonly occurring even in pre-pubertal age groups and women, and the seriousness of hair loss has been awakened. Accordingly, various types of products for the treatment of hair loss are being released, ranging from detergents such as shampoo and soap to cosmetics, health food, hair loss prevention device using LED, etc.

Such medicines or products need to be evaluated for the effect of hair loss treatment. In the past, evaluation was made in a way that the number of hairs was checked by photographing a certain area of the scalp. That is, the subject visits the hospital, cuts a certain part of the subject's scalp to a width of about 3 cm x 3 cm, tattoos the central point of the shaved part with a dot, and takes a picture with the camera. Then, a region of interest (eg, about 1 cm x 1 cm) is set based on the point tattoo in the photographed image, and the number of hairs in the set region of interest is counted and recorded. Thereafter, the subject visits the hospital at regular intervals while using the drug or product to be evaluated according to a prescribed protocol, and takes pictures of the dot tattoo with the same resolution using the same camera. In addition, the treatment effect may be evaluated by counting the number of hairs in the region of interest set in the captured image and comparing the number with the number of previous hairs.

That is, the evaluation of the hair loss treatment effect is to quantify the number of hairs before and after hair loss treatment by photographing a certain area of the scalp. However, when there are many subjects, shooting can be performed with various types of cameras. Accordingly, images of various resolutions may be generated for the same subject. However, the conventional hair counter cannot accommodate the characteristics of each camera or images of different resolutions.

Therefore, even if a failure occurs in the middle of a clinical trial, it is impossible to change the camera, and there are problems in that the regions of interest for quantifying the number of hairs are different due to the difference in resolution between images captured by different cameras.

For example, when shooting with a Canon VEOS SLR camera, the resolution is 6000x4000, and when shooting with a DCS-W300 (sony) camera with a dermlite lens, the resolution is 4224x2376. After shooting with a Canon VEOS SLR camera, the area of interest is set to 1cm x 1cm to count the number of hairs using the supported software, and the number of hairs inside is counted based on this. At this time, if you use the same software and change to DCS-W300 (sony) camera with dermlite lens combined, the area of interest of the image taken by the changed camera is changed due to the difference in resolution of different cameras, so compatibility is lost. , even if the resolution is matched, there is still a difference for each camera due to the difference in the lens of each camera.

For this reason, there is a problem in that the hair counter is manufactured for each camera or that the clinical nurse must directly identify and display the region of interest in the image for each camera of the same subject. In addition, there was a problem in data integration in the study of calculating statistical values by integrating images taken by different cameras.

1 is a view for explaining the problems of the conventional hair counter.

In general, as a camera supported by the hair counter, a Canon VEOS SLR camera may be used as a reference device. As shown in (a) of FIG. 1, the hair counter sets the region of interest to 1 cm x 1 cm in the image taken by the grid scale box 100 at 6000x4000 resolution with a Canon VEOS SLR camera. A guide box 200 for guiding the region of interest may be displayed to correspond to the grid scale box 100 .

However, when an image was taken with the resolution changed to 3984x2656 with the same Canon VEOS SLR camera, as shown in (b) of FIG. 1 , the hair counter displays the guide box 200 larger than the grid scale box 100 can do.

On the other hand, using an imaging device such as a smartphone LGM-X600K (LG) combined with IDS-1100 (ILLUCO), the region of interest is 1 cm Even when set to x 1cm, the hair counter may display the guide box 200 larger than the grid scale box 100 .

That is, the hair counter displays the guide box 200 differently from reality when the resolution is different even with the same recording equipment, and even if the resolution matches the reference resolution, when shooting with other photographing equipment, the guide box 200 is still different from the actual one. There are problems that are displayed differently.

Republic of Korea Patent Publication No. 10-1653038 (2016.08.25.)

An object of the present invention is to provide a hair counter for evaluating hair loss treatment that accurately displays a region of interest set for counting the number of hairs in a photographed scalp image, regardless of imaging equipment and resolution of photographing, and an operation method thereof.

According to one aspect of the present invention, a method of operating a hair counter for evaluating hair loss treatment is disclosed.

The method of operating a hair counter according to an embodiment of the present invention includes the steps of setting a reference photographing equipment and a reference resolution, and a correction image generated by photographing a grid scale box with a new photographing equipment in addition to the reference photographing equipment receiving and outputting, receiving a touch input for two vertices in a diagonal direction of the grid scale box in the output calibration image, extracting the coordinate values of the two vertices from the touch input, the extracted two Using the coordinate values of the vertices, calculating the horizontal and vertical lengths of the grid of the grid scale box on the image for correction as reference length correction values, and a scalp image input using the calculated reference length correction value including correcting

The method of operating the hair counter further includes the step of converting a resolution of the input scalp image to the reference resolution when a scalp image photographed at a resolution different from the reference resolution is input by the reference photographing device.

In the step of receiving the touch input, the upper left vertex and the lower right vertex of the grid scale box are received as touch inputs in the output calibration image.

The grid scale box is formed in a square in which a plurality of square grids of which one side is a preset reference length are arranged.

In the step of calculating the horizontal and vertical lengths of the grid of the grid scale box as reference length correction values, the coordinate values of the two vertices are (x ₁ , y ₁ ) and (x ₂ , y ₂ ), and the reference length is 1 mm, and in the grid scale box, when 10 x 10 grids are arranged to have a size of 1 cm x 1 cm, the reference length correction value for the reference lengths in the x-axis and y-axis is calculated using the following equation .

Reference length correction value for 1 mm on the x-axis = |x ₂ - x ₁ |/10

Reference length correction for 1 mm on the y axis = |y ₂ - y ₁ |/10

The step of calculating the horizontal and vertical lengths of the grid of the grid scale box as a reference length correction value includes mapping the reference length correction value with an identifier of the new imaging equipment and storing it, and correcting the scalp image The step of extracting a corresponding reference length correction value from the stored reference length correction values for each imaging equipment using the identifier of the imaging equipment that generated the input scalp image, and the scalp input as the extracted reference length correction value correcting the image.

According to another aspect of the present invention, a hair counter for evaluating hair loss treatment is disclosed.

A hair counter according to an embodiment of the present invention includes a memory for storing instructions and a processor for executing the instructions, wherein the instructions include the steps of setting a reference photographing equipment and a reference resolution, and a new photographing equipment in addition to the reference photographing equipment. A step of receiving and outputting a calibration image generated by photographing a grid scale box, receiving a touch input for two vertices in a diagonal direction of the grid scale box in the output calibration image, the step of extracting the coordinate values of the two vertices inputted by the touch, using the extracted coordinate values of the two vertices, calculating the horizontal and vertical lengths of the grid of the grid scale box on the calibration image as reference length correction values and correcting the input scalp image using the calculated reference length correction value.

A hair counter for evaluating hair loss treatment and an operating method thereof according to an embodiment of the present invention can accurately display a region of interest set for counting the number of hairs in a photographed scalp image, regardless of photographing equipment and photographing resolution. there is.

1 is a view for explaining the problems of the conventional hair counter.
Figure 2 is a flow chart showing a method of operating a hair counter for hair loss treatment evaluation according to an embodiment of the present invention.
3 to 7 are views for explaining the operation method of the hair counter for the evaluation of hair loss treatment according to the embodiment of the present invention of FIG. 2 .
8 is a diagram schematically illustrating the configuration of a hair counter for evaluating hair loss treatment according to an embodiment of the present invention.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software. .

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a flowchart showing an operation method of a hair counter for evaluating hair loss treatment according to an embodiment of the present invention, and FIGS. 3 to 7 are an operation of a hair counter for evaluating hair loss treatment according to an embodiment of the present invention of FIG. It is a drawing for explaining the method. Hereinafter, an operation method of a hair counter for evaluating hair loss treatment according to an embodiment of the present invention will be described with reference to FIG. 2 , but with reference to FIGS. 3 to 7 .

In step S210, the hair counter sets the standard photographing equipment and the standard resolution.

For example, the photographing equipment used for photographing the scalp may be represented as shown in FIG. 3 , among which the Canon VEOS SLR camera is set as the reference photographing equipment, and the reference resolution may be set to 6000x4000. That is, the hair counter stores information on supportable photographing equipment, and may select any one of the supportable photographing equipments from the user and set it as the reference photographing equipment. In addition, the hair counter may receive any one of the supported resolutions of the set standard photographing equipment from the user and set it as the reference resolution.

In step S220, when a scalp image photographed with a resolution different from the reference resolution is input by the reference photographing equipment, the hair counter converts the resolution of the input scalp image into the reference resolution and outputs it.

For example, referring to FIG. 4 , the hair counter converts the image taken by the Grid scale box 100 at a resolution of 3984x2656 with a Canon VEOS SLR camera to a reference resolution of 6000x4000 by converting the resolution, the guide box (Guide box) 200 may be displayed corresponding to the grid scale box (100). That is, the hair counter can eliminate distortion of the region of interest of 1 cm x 1 cm caused by the difference in resolution.

In step S230, the hair counter receives an image generated by photographing the grid scale box 100 with new photographing equipment. Here, the grid scale box 100 may be formed in a square in which a plurality of square grids having a side length of a preset reference length are arranged. For example, the grid scale box 100 may be set to have a size of 1 cm x 1 cm in which 10 x 10 grids having a size of 1 mm x 1 mm are arranged.

In step S240, the hair counter stores and displays the input image. For example, after saving the input image with a file name such as calibration.jpg, the hair counter can output it on the screen through the load function.

In step S250 , the hair counter receives touch inputs for two vertices in the diagonal direction of the grid scale box 100 . Then, the hair counter extracts and stores the coordinate values of the two vertices that have been touched.

For example, the hair counter may receive a touch input of the upper left vertex and the lower right vertex of the grid scale box 100 in the output image, and the coordinate values of the upper left vertex and the lower right vertex respectively (x ₁ , y ₁ ) and (x ₂ , y ₂ ) can be extracted and stored.

In step S260, the hair counter, in order to match the actual reference length and the reference length on the photographed image, using the coordinate values of the two extracted vertices, the grid of the grid scale box 100 on the photographed image horizontally and vertically Calculate the length of , and store the calculated horizontal and vertical lengths as reference length calibration values.

For example, assuming that the grid scale box 100 is set to 1 cm x 1 cm by arranging 10 x 10 grids with a size of 1 mm x 1 mm as described above, as in the following equation, the x-axis and y-axis reference A reference length correction value for the length may be calculated.

[Equation 1]

Reference length correction value for 1 mm on the x-axis = |x ₂ - x ₁ |/10

Reference length correction for 1 mm on the y axis = |y ₂ - y ₁ |/10

The reference length correction value calculated in this way may be mapped and stored with an identifier of a corresponding new imaging device.

In step S270, the hair counter corrects and outputs the inputted scalp image using the reference length correction value.

That is, the hair counter extracts the corresponding reference length correction value from the reference length correction values for each recording equipment stored using the identifier of the photographing equipment that generated the input scalp image, and uses the scalp image input as the extracted reference length correction value. can be corrected

For example, referring to FIG. 5 , a grid scale box 100 was photographed at a resolution of 6000x4000 using an imaging device that combines an IDS-1100 (ILLUCO) and a smartphone LGM-X600K (LG). When the region of interest in the image is set to 1 cm x 1 cm, as shown in Before of FIG. 5 , the grid scale box 100 may be displayed smaller than the guide box 200 in the captured image. However, if the image taken through the above-described operation method of the hair counter is corrected, as shown in After of FIG. 5 , the size of the grid scale box 100 and the guide box 200 is equally displayed as 1 cm x 1 cm can be

6 and 7 show examples of output screens according to the execution of the method of operating a hair count according to an embodiment of the present invention. 6 and 7, the current scalp image (1) taken with a recording device that combines the IDS-1100 (ILLUCO) and the smartphone LGM-X600K (LG) and the previous scalp image (2) taken with a Canon VEOS SLR camera ), it can be seen that the guide box 200 is set to the same area.

8 is a diagram schematically illustrating the configuration of a hair counter for evaluating hair loss treatment according to an embodiment of the present invention.

Referring to FIG. 8 , the hair counter for evaluating hair loss treatment according to an embodiment of the present invention includes a processor 10 , a memory 20 , a communication unit 30 , and an interface unit 40 .

The processor 10 may be a CPU or a semiconductor device that executes processing instructions stored in the memory 20 .

Memory 20 may include various types of volatile or non-volatile storage media. For example, the memory 20 may include ROM, RAM, or the like.

For example, the memory 20 may store instructions for performing a method of operating a hair counter for hair loss treatment evaluation according to an embodiment of the present invention.

The communication unit 30 is a means for transmitting and receiving data with other systems through a communication network.

The interface unit 40 may include a network interface and a user interface for accessing a network.

For example, the interface unit 40 may include a display unit for displaying and outputting information received or processed by the hair counter for hair loss treatment evaluation according to an embodiment of the present invention, and an input unit receiving various commands from the user. there is. Here, the display unit may be implemented as a touch screen that forms a layer structure with a sensor for sensing a touch operation so as to include the function of the input unit.

On the other hand, the components of the above-described embodiment can be easily grasped from a process point of view. That is, each component may be identified as each process. In addition, the process of the above-described embodiment can be easily understood from the point of view of the components of the apparatus.

In addition, the technical contents described above may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiments or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. A hardware device may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

The above-described embodiments of the present invention have been disclosed for purposes of illustration, and various modifications, changes, and additions will be possible within the spirit and scope of the present invention by those skilled in the art having ordinary knowledge of the present invention, and such modifications, changes and additions should be regarded as belonging to the following claims.

10: Processor
20: memory
30: communication department
40: interface unit

Claims (7)

In the method of operating a hair counter for evaluation of hair loss treatment performed in an electronic device,
setting a reference photographing device and a reference resolution;
converting a resolution of the input scalp image to the reference resolution when a scalp image photographed with a resolution different from the reference resolution is input by the reference photographing device;
receiving and outputting an image for correction generated by photographing a grid scale box with a new photographing equipment in addition to the reference photographing equipment;
receiving touch inputs for two vertices in a diagonal direction of the grid scale box in the outputted calibration image;
extracting coordinate values of the two vertices inputted by the touch;
calculating horizontal and vertical lengths of a grid of the grid scale box on the calibration image as reference length calibration values by using the extracted coordinate values of the two vertices;
mapping the calculated reference length correction value with an identifier of the new imaging equipment and storing;
extracting a reference length correction value from among the stored reference length correction values for each imaging equipment by using the input identifier of the imaging equipment that generated the scalp image; and
and correcting the input scalp image by using the extracted reference length correction value.
delete According to claim 1,
The step of receiving the touch input includes:
Method of operating a hair counter, characterized in that the touch input of the upper left vertex and the lower right vertex of the grid scale box in the output correction image.
According to claim 1,
The grid scale box is an operating method of a hair counter, characterized in that the length of one side is formed as a square in which a plurality of square grids of a preset reference length are arranged.
5. The method of claim 4,
Calculating the horizontal and vertical lengths of the grid of the grid scale box as a reference length calibration value comprises:
The coordinate values of the two vertices are (x ₁ , y ₁ ) and (x ₂ , y ₂ ), the reference length is 1 mm, and the grid scale box has 10 x 10 grids arranged in a size of 1 cm x 1 cm. When formed, the method of operating a hair counter, characterized in that for calculating the reference length correction value for the reference length of the x-axis and y-axis using the following equation.
Reference length correction value for 1 mm on the x-axis = |x ₂ - x ₁ |/10
Reference length correction for 1 mm on the y axis = |y ₂ - y ₁ |/10
delete In the hair counter for hair loss treatment evaluation,
memory to store instructions; and
A processor that executes the instructions,
The command is
setting a reference photographing device and a reference resolution;
converting a resolution of the input scalp image to the reference resolution when a scalp image photographed with a resolution different from the reference resolution is input by the reference photographing device;
receiving and outputting an image for correction generated by photographing a grid scale box with a new photographing equipment in addition to the reference photographing equipment;
receiving touch inputs for two vertices in a diagonal direction of the grid scale box in the outputted calibration image;
extracting coordinate values of the two vertices inputted by the touch;
calculating horizontal and vertical lengths of the grid of the grid scale box on the calibration image as reference length calibration values by using the extracted coordinate values of the two vertices;
mapping the calculated reference length correction value with an identifier of the new imaging equipment and storing;
extracting a corresponding reference length correction value from the stored reference length correction values for each imaging equipment by using the input identifier of the imaging equipment that generated the scalp image; and
A hair counter, characterized in that performing a method of operating a hair counter comprising the step of correcting the input scalp image by using the extracted reference length correction value.

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