KR20220023505A - Device and method for evaluating anti-aging according to eyebrow beauty - Google Patents

Abstract

The embodiments relate to a device and method for evaluating an anti-aging effect according to an eyebrow beauty treatment comprising: an image photographing part that photographs an eyebrow area, at a first time before use and at a second time after use of an eyebrow beauty treatment product; a calculation part that calculates the eyebrow information of each eyebrow area, from a first eyebrow image by photographing the eyebrow of the subject at the first time and a second eyebrow image by photographing the eyebrow of the subject at the second time after the first time; and a comparison part that evaluates the anti-aging effect of the subject by comparing the eyebrow information of the first and second eyebrow images by the calculation part.

Description

Apparatus and method for evaluating anti-aging effect according to eyebrow beauty {DEVICE AND METHOD FOR EVALUATING ANTI-AGING ACCORDING TO EYEBROW BEAUTY}

The present invention relates to the analysis of the anti-aging effect according to eyebrow beauty among facial parts, and more particularly, to increase in eyebrow thinning, increase in saturation, and/or increase in the distance between eyebrows and eyes according to the use of eyebrow beauty products. Accordingly, it relates to an apparatus and method for quantitatively evaluating the anti-aging effect.

As skin aging progresses, loss of eyebrows increases due to loss of soft tissue. Especially for Asians, the distance between the eyes and the eyebrows decreases. Improving this can be said to be one of the important efficacy characteristics in cosmetics and cosmetics. For example, eyebrow makeup can change the impression by giving the color of the eyebrows or filling in thin areas and changing the shape. Anti-aging effect can also be expected due to such eyebrow beauty.

However, eyebrow beauty depends on the subjective visual evaluation of the evaluator, and due to the absence of a method for quantitatively evaluating eyebrow beauty, there is a limitation in that it is difficult to objectify the product and cosmetic effect.

In addition, in the existing anti-aging evaluation method, for the improvement of facial aging, only skin wrinkles, changes in elasticity, and changes in sagging are measured and the degree of improvement of each element is presented. There were limitations that could not be quantified.

Embodiments of the present invention calculate eyebrow information by specifying the eyebrow region before and after use of the eyebrow beauty product, compare the values before and after use of the eyebrow beauty product, and evaluate that the anti-aging effect increases as the number increases. An object of the present invention is to provide an apparatus and method for quantitatively and objectively measuring and/or evaluating the anti-aging effect according to eyebrow beauty, which was impossible to analyze with the improvement evaluation method.

The apparatus for evaluating the anti-aging effect according to eyebrow beauty, which is an aspect of the present invention, may evaluate the anti-aging effect of a target eyebrow beauty product. The anti-aging evaluation is performed quantitatively by accurately detecting the eyebrow area before and after using the eyebrow beauty product on the face, or by comparing the area/saturation of the eyebrow area.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

In order to more clearly explain the technical solutions of the embodiments of the present invention or the prior art, drawings necessary for the description of the embodiments are briefly introduced below. It should be understood that the following drawings are for the purpose of explaining the embodiments of the present specification and not for the purpose of limitation. In addition, some elements to which various modifications such as exaggeration and omission have been applied may be shown in the drawings below for clarity of description.
1 is a schematic diagram of an apparatus for evaluating an anti-aging effect according to eyebrow beauty, according to an embodiment of the present invention.
2 is a flowchart of a method for evaluating an anti-aging effect according to eyebrow beauty, according to an embodiment of the present invention.
3 is a diagram to help understanding for calculating the D1, D2, and D3 indicators according to an embodiment of the present invention.
4 is an image of the eyebrows showing before, immediately after, and 7 days after use of the eyebrow beauty product according to an experimental example of the present invention.
5 is a graph showing, in pixels, the values of the area of the eyebrow area before, immediately after, and 7 days after use of the eyebrow cosmetic product according to an experimental example of the present invention.
6 is a graph showing the saturation values of the eyebrow area before, immediately after, and 7 days after use of the eyebrow cosmetic product according to an experimental example of the present invention.
7 is a graph illustrating an increase in the distances D1, D2, and D3 between the eyes and the eyebrows after using the product compared to before the use of the eyebrow cosmetic product according to an experimental example of the present invention.

The terminology used herein is for the purpose of referring to specific embodiments only, and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. The meaning of "comprising," as used herein, specifies a particular characteristic, region, integer, step, operation, item, and/or component, and includes the presence or absence of another characteristic, region, integer, step, operation, item and/or component. It does not exclude additions.

Although not defined otherwise, all terms including technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Commonly used terms defined in the dictionary are additionally interpreted as having a meaning consistent with the related technical literature and the presently disclosed content, and unless defined, are not interpreted in an ideal or very formal meaning.

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

1 is a schematic diagram of an apparatus for evaluating an anti-aging effect according to eyebrow beauty, according to an embodiment of the present invention.

Referring to FIG. 1 , an apparatus for evaluating an anti-aging effect according to eyebrow beauty (hereinafter "anti-aging evaluation apparatus") 1 is an image capturing unit 10 , a calculating unit 30 , and a comparing unit 50 . includes

The anti-aging evaluation apparatus 1 according to the embodiments may have an aspect that is entirely hardware, entirely software, or partly hardware and partly software. For example, the system may collectively refer to hardware equipped with data processing capability and operating software for driving the same. As used herein, terms such as “unit,” “system,” and “device” are intended to refer to a combination of hardware and software run by the hardware. For example, the hardware may be a data processing device including a central processing unit (CPU), a graphic processing unit (GPU), or another processor. In addition, software may refer to a running process, an object, an executable file, a thread of execution, a program, and the like.

For example, the concepts of the anti-aging evaluation device 1 (eg, operations of components 10 , 30 , 50 ) (VISIA-CR® system of Canfield Corporation (Fairfield, NJ, USA)) It may be integrated into various computing devices (eg, smart devices, computers, etc.) as an imaging system for skin analysis or as software for a computer or as an app for customers. The software is designed to calculate numerical values such as measuring the area of eyebrows, saturation, and distance between the eyes and eyebrows based on the captured image, and detects whether the area of the eyebrow area of the subject in the image increases and/or determines the anti-aging characteristics It may evaluate and further provide an operation result to the user.

The image capturing unit 10 is a component that captures an image including the eyebrows of a target, and may be implemented with various image capturing devices that can be used in the art. In an embodiment, the image capturing unit 10 is configured to obtain an optical image by capturing an image of the eye area including the eyebrows of the subject. For example, the image capturing unit 10 may be implemented with VISIA-CR® of Canfield Corporation (Fairfield, NJ, USA).

The image capturing unit 10 may generate a first eyebrow image including the eyebrows of the target at a first time. Also, at a second time, a second eyebrow image including the eyebrows of the same object may be generated. The photographed eyebrows are areas where makeup is performed, such as application of eyebrow beauty products.

The first time is a time earlier than the second time. In one embodiment, the first time may be before using the eyebrow beauty product. The first skin image taken before the use of the eyebrow beauty product represents the eyebrow in a natural state to which the eyebrow beauty product is not applied.

The second time is the time after the eyebrow beauty product is applied to the eyebrows. It is a time during which deformation from natural eyebrows is likely to occur, such as eyebrow filling, sharpness, and increase in the distance between the eyes and eyebrows, before and after a certain period of time has elapsed from the first time period. It may be the time when eyebrow thinning begins to be observed with the naked eye, such as an increase in eyebrow thinning from immediately after application of the eyebrow beauty product.

For example, the second time period may be several seconds (eg, immediately after using the eyebrow beauty product) or several days (eg, a week) from the first time period. However, the second time period of the present invention is not limited thereto, and various second time periods may be utilized due to the regular use of eyebrow beauty products.

The image capturing unit 10 may provide image data (eg, a first eyebrow image and a second eyebrow image) to the other components 30 or 50 .

The calculation unit 30 makes the boundary of the eyebrow region clearer in the eyebrow image provided from the image capturing unit 10 and calculates eyebrow information (eg, area, saturation, or distance between the eye and the eyebrow) of the eyebrow area. is a configuration that

The calculator 30 may designate the same partial region in the first eyebrow image and the second eyebrow image and extract it as a region of interest (ROI) patch. Then, eyebrow information about the eyebrow area of the ROI patch of the first eyebrow image (hereinafter, "first patch") and the ROI patch of the second eyebrow image (hereinafter, "second patch") (for example, of the eyebrow area) area, saturation or distance between the eye and the eyebrow) is calculated.

In an embodiment, the calculator 30 may use a black-and-white binarization technique to specify the eyebrow area and calculate the area of the eyebrow area. The black-and-white binarization technique is a technique of generating an extracted image by extracting black-and-white from a photographed image. The extracted image generated by the black-and-white binarization technique removes skin color elements, blemishes around the eyebrows, and pigmentation. When the difference between skin color and eyebrow color is maximized through the black and white binarization technology, the desired characteristic area of the eyebrow becomes clear, and it becomes easy to analyze the eyebrow area based on the binarized data. The area of the eyebrow region shown in the binarized image (or patch) may be quantified in pixels.

In an embodiment, the calculator 30 may extract color data to specify an eyebrow area and calculate saturation of the eyebrows. In order to calculate the saturation, an HSI (Hue, Saturation, Intensity) method may be used. According to an embodiment, the color data may be color data expressed as color space data of one of HSI, HSV, and HSL. More specifically, the color data may use a saturation value among data of the above color space. That is, according to an embodiment, the saturation value may be a saturation value in the HSI color space and a saturation value in the HSI color space.

[Equation 1]

In calculating the saturation value S of Equation 1, the parameters R, G, and B represent red, green, and blue data in the RGB color space. Even in the same black part of the eyebrow area, the sharper the black part, the higher the saturation value, and the less vivid the black part, the lower the saturation value.

In one embodiment, the calculator 30 needs to specify the eyebrow region and to specify the distance from which point of the eye to which point of the eyebrow in order to evaluate that the distance between the eye and the eyebrow has increased. To this end, it is possible to specify a reference line that is a straight line that crosses the eye in a direction perpendicular to the nose. The reference line may, for example, be designated based on the front of the eyes, but is not limited thereto.

The calculator 30 draws a reference line and calculates a vertical distance from an arbitrary point on the reference line to the eyebrow. Any of the above points may be one or more.

The calculator 30 may draw a reference line on the patch image and designate one or more points among two intersections of the eye and the reference line (P1 and P3, respectively) as the arbitrary points. Also, the calculator 30 may designate P2 between the reference lines P1 and P3 as an arbitrary point P2. In an embodiment, the arbitrary point P2 may be located in a central portion between P1 and P3.

When the baseline in the example is drawn, P1, P2, and P3 are medial canthus, pupil, and lateral canthus points on the baseline, respectively. The positions of the points P1, P2, and P3 are merely exemplary, and may have other positions depending on the reference line.

The calculator 30 measures a vertical distance from one or more points on the reference line (eg, P1, P2, P3) to the eyebrows. For example, the calculator 30 may measure the vertical distances (hereinafter referred to as D1, D2, and D3, respectively) from the three reference points P1, P2, and P3, respectively.

In an embodiment, the distance between the eye and the eyebrow is expressed in units of pixels. The reason for measuring the distance between the eyes and the eyebrows is that it is considered that the anti-aging effect increases as the distance between the eyes and the eyebrows increases.

The calculator 30 may provide eyebrow information of the first eyebrow image and the second eyebrow image to the comparison unit 50 .

The comparison unit 50 is configured to compare the eyebrow information of the first and second eyebrow images by the calculation unit 30 to evaluate the anti-aging effect of the target.

The comparison unit 50 compares the eyebrow width, saturation, or distance between the eyes and the eyebrows of the first and second eyebrow images calculated by the calculation unit 30 in order to quantitatively calculate the anti-aging effect. , the larger the eyebrow width value for the second eyebrow image compared to the first eyebrow image, the less thinning part is filled and aging is improved. As the distance between the eyes and eyebrows increases, aging is improved, and the efficacy of eyebrow beauty products can be confirmed.

When comparing the distance between the eyes and the eyebrows, when the distance increases in one or more of the distance indicators D1, D2, and D3, it is evaluated that there is an anti-aging effect.

The comparator 50 may provide a contrast image of the first eyebrow image and the second eyebrow image to the user. The anti-aging evaluation device 1 may provide the user with a result before and after application of the eyebrow beauty product more visually.

In some embodiments, the comparison unit 50 may compare the area of the eyebrow region calculated by the calculation unit 30 in the contrast image, the saturation value, and the distance between the eyes and the eyebrows.

It will be apparent to a person skilled in the art that the anti-aging evaluation device 1 may include other components not explicitly described herein. For example, the prediction system may include network interfaces, input devices for data entry, and output devices for display, printing or other data presentation, storage devices such as memory, and other hardware necessary for the operations described herein. It may contain elements.

A method (hereinafter, “anti-aging evaluation method”) for evaluating an anti-aging effect according to eyebrow beauty according to another aspect of the present invention is performed by a computing device including a processor. The computing device including the processor is, for example, performed by the anti-aging evaluation device 1 or some components (eg, the calculation unit 30 and/or the comparison unit 50), or to another computing device. may be performed by Hereinafter, for clarity of explanation, the present invention will be described in more detail with embodiments in which the anti-aging evaluation method is performed by the anti-aging evaluation method apparatus 1 .

2 is a flowchart of an anti-aging evaluation method according to an embodiment of the present invention.

Referring to FIG. 2 , the anti-aging evaluation method includes: (eg, by the calculator 30 ) acquiring a first eyebrow image and a second eyebrow image of the subject ( S10 ). The first eyebrow image and the second eyebrow image may be images generated in step S10. The first and second eyebrow images are used to analyze the anti-aging effect in the photographed eyebrow area of the subject.

The anti-aging evaluation method includes: calculating ( S30 ) information on each eyebrow region (eg, area, saturation, or distance between the eye and the eyebrow) from the first eyebrow image and the second eyebrow image.

In one embodiment, the step (S30) may include: designating the same sub-region in the first eyebrow image and the second eyebrow image; and extracting a patch of a designated sub-region. The patch of the designated sub-region contains the evaluation part and is referred to as the ROI patch.

The anti-aging evaluation method includes: comparing the eyebrow information of the first and second eyebrow images by step S30 to evaluate the anti-aging effect of the target (S50).

3 is a diagram to help understanding for calculating a D1, D2, or D3 index, according to an embodiment of the present invention.

The calculator 30 measures a vertical distance from one or more points among one or more arbitrary points on the reference line to the eyebrows. In an embodiment, the distance between the eye and the eyebrow is expressed in units of pixels. The reason for measuring the distance between the eyes and the eyebrows is that as the distance between the eyes and the eyebrows increases, the anti-aging effect is obtained.

Experimental example

4 to 7 are diagrams for explaining an experiment for verifying the performance of the anti-aging evaluation apparatus 1 of FIG. 1 according to an experimental example of the present invention.

4 is an image of the eyebrows showing before, immediately after, and 7 days after use of the eyebrow beauty product according to an experimental example of the present invention. It can be seen with the naked eye that the width of the eyebrows immediately after using the product has increased compared to the width of the eyebrows before use. In addition, the black area of the eyebrows was clear and the saturation value was high, and the distance between the eyes and the eyebrows increased. Although the eyebrow image after 7 days of product use shows that the width, saturation, and distance between the eyes and eyebrows have decreased compared to the eyebrow image immediately after use, it can be seen that each value is still larger than before using the product. In other words, it can be concluded that the anti-aging effect can persist for several days after using the product.

5 is a graph showing, in units of pixels, the value of the area of the eyebrow area before, immediately after, and 7 days after use of the eyebrow beauty product according to an experimental example of the present invention.

Compared to before using the product, the area where the eyebrows were filled increased by 254% immediately after use, and 68% after 7 days of use, indicating that the area with thin eyebrows was filled.

6 is a graph showing the saturation values of the eyebrow area before, immediately after, and 7 days after use of the eyebrow cosmetic product according to an experimental example of the present invention.

It can be seen that the sharpness (saturation) of the eyebrows increased by 35% immediately after use compared to before using the product, and increased by 10% after 7 days of use, indicating that the eyebrows became clearer.

In this way, the effect of the eyebrow beauty product may be quantitatively evaluated.

7 is a graph showing that the distances D1, D2, and D3 between the eyes and the eyebrows after using the product are increased compared to before the use of the eyebrow cosmetic product according to an experimental example of the present invention.

Compared to before using the product, the distance between the eyes and eyebrows increased by 26% for D1, 11% for D2, and 15% for D3 immediately after use, so it can be evaluated that the anti-aging effect is produced by increasing the distance between the eyes and eyebrows.

Through the anti-aging evaluation apparatus 1 and method, the eyebrow area before and after the use of the target eyebrow beauty product is accurately detected or quantitatively performed by comparing the area/saturation of the eyebrow area. Furthermore, the anti-aging evaluation apparatus 1 and method may be utilized to evaluate the durability of the eyebrow beauty product. For example, if anti-aging properties are evaluated for a first eyebrow beauty product and anti-aging properties are evaluated for a second eyebrow beauty product made of a different raw material from the first eyebrow beauty product for the same object, the second The durability of the eyebrow beauty product and the first eyebrow beauty product may be quantitatively evaluated.

The operation by the anti-aging evaluation apparatus 1 and the method according to the above-described embodiments may be at least partially implemented as a computer program and recorded in a computer-readable recording medium. For example, embodied with a program product consisting of a computer-readable medium containing program code, which may be executed by a processor for performing any or all steps, operations, or processes described.

The computer-readable recording medium includes all types of recording devices in which computer-readable data is stored. Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like. In addition, the computer-readable recording medium may be distributed in a network-connected computer system, and the computer-readable code may be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the present embodiment may be easily understood by those skilled in the art to which the present embodiment belongs.

Although the present invention as described above has been described with reference to the embodiments shown in the drawings, it will be understood that these are merely exemplary and that various modifications and variations of the embodiments are possible therefrom by those of ordinary skill in the art. However, such modifications should be considered to be within the technical protection scope of the present invention. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (17)

an image capturing unit for photographing an eyebrow region of a subject at a first time before and a second time after use of the eyebrow beauty product;
Calculation of calculating eyebrow information of each eyebrow region from a first eyebrow image obtained by photographing the eyebrows of the subject at the first time and a second eyebrow image obtained by photographing the eyebrows of the subject at a second time after the first time wealth; and
and a comparison unit configured to compare the eyebrow information of the first and second eyebrow images by the calculation unit to evaluate the anti-aging effect of the target.
According to claim 1, wherein the calculation unit,
Anti-aging effect evaluation apparatus according to eyebrow beauty, characterized in that it is further configured to extract a partial region from the first and second eyebrow images as a patch.
The method of claim 1, wherein the eyebrow information is an area of an eyebrow region of the first and second eyebrow images;
Anti-aging effect evaluation apparatus according to eyebrow beauty, characterized in that the larger the value of the width of the eyebrow region is, the more the anti-aging effect is.
4. The method of claim 3,
An anti-aging effect evaluation apparatus according to eyebrow beauty, characterized in that a black-and-white binarization method is used to calculate the width value of the eyebrow region.
According to claim 1,
The eyebrow information is a saturation value of an eyebrow region of the first and second eyebrow images,
Anti-aging effect evaluation apparatus according to eyebrow beauty, characterized in that the greater the saturation value of the eyebrow region, the greater the anti-aging effect.
6. The method of claim 5,
The apparatus for evaluating anti-aging effect according to eyebrow beauty, characterized in that the saturation value of the eyebrow region is calculated using a Hue, Saturation, Intensity (HSI) method.
According to claim 1,
The eyebrow information is a distance between the eyes and the eyebrows of the first and second eyebrow images,
Anti-aging effect evaluation apparatus according to eyebrow beauty, characterized in that the greater the distance value between the eye and the eyebrow, the greater the anti-aging effect.
8. The method of claim 7,
The distance value between the eye and the eyebrow specifies a reference line that is a straight line that crosses the eye in a vertical direction with the nose,
Anti-aging effect evaluation apparatus according to eyebrow beauty, characterized in that it is a vertical distance from one or more points among one or more arbitrary points on the reference line to the eyebrows.
In the method of evaluating the anti-aging effect according to the eyebrow beauty performed by the processor,
acquiring a first eyebrow image obtained by photographing the subject's eyebrows at a first time before use of the eyebrow beauty product and a second eyebrow image obtained by photographing the subject's eyebrows at a second time after the first time;
calculating eyebrow information of each eyebrow region from the first eyebrow image and the second eyebrow image; and
and evaluating the anti-aging effect of the target by comparing the eyebrow information of the first and second eyebrow images.
10. The method of claim 9,
The step of calculating eyebrow information of the eyebrow region includes:
Anti-aging effect evaluation method according to eyebrow beauty, characterized in that it is further configured to extract a partial region from the first and second eyebrow images as a patch.
10. The method of claim 9,
The eyebrow information is an area of the eyebrow region of the first and second eyebrow images,
An anti-aging effect evaluation method according to eyebrow beauty, characterized in that the larger the value of the width of the eyebrow region, the greater the anti-aging effect.
12. The method of claim 11,
An anti-aging effect evaluation method according to eyebrow beauty, characterized in that a black-and-white binarization method is used to calculate the width value of the eyebrow region.
10. The method of claim 9,
The eyebrow information is a saturation value of an eyebrow region of the first and second eyebrow images,
An anti-aging effect evaluation method according to eyebrow beauty, characterized in that the greater the saturation value of the eyebrow region, the greater the anti-aging effect.
14. The method of claim 13,
The anti-aging effect evaluation method according to eyebrow beauty, characterized in that the saturation value of the eyebrow region is calculated using a Hue, Saturation, Intensity (HSI) method.
10. The method of claim 9,
The eyebrow information is a distance between the eyes and the eyebrows of the first and second eyebrow images,
An anti-aging effect evaluation method according to eyebrow beauty, characterized in that the greater the distance value between the eye and the eyebrow, the greater the anti-aging effect.
16. The method of claim 15,
The distance value between the eye and the eyebrow specifies a reference line that is a straight line that crosses the eye in a vertical direction with the nose,
An anti-aging effect evaluation method according to eyebrow beauty, characterized in that it is a vertical distance from one or more points among one or more arbitrary points on the reference line to the eyebrows. 17. A computer-readable recording medium readable by a computer and storing program instructions operable by the computer, wherein when the program instructions are executed by a processor of the computer, the processor causes the processor according to any one of claims 9 to 16 A computer-readable recording medium for performing the anti-aging effect evaluation method according to the eyebrow cosmetic according to one of the preceding claims.

Images