Method for determining reason for change in under-eye sagging, device for determining reason for change in under-eye sagging, program, method for evaluating under-eye sagging, device for evaluating under-eye sagging, and program

Abstract

The present invention determines the reason why there has been a change in under-eye sagging. A method according to one embodiment of the present invention comprises: acquiring information on a subject's under-eye three-dimensional shape of when the subject is in a vertical position before there is a change in the subject's under-eye sagging as well as information on the subject's under-eye three-dimensional shape of when the subject is in a vertical position after there has been a change in the under-eye sagging; and determining the reason why there has been a change in the under-eye sagging on the basis of the volume difference between the subject's under-eye three-dimensional shape of when the subject is in a vertical position before there is a change in the under-eye sagging and the subject's under-eye three-dimensional shape of when the subject is in a vertical position after there has been a change in the under-eye sagging.

Description

Method for determining the reason for change in sagging around the eyes, device for determining the reason for change in sagging around the eyes, and program, method for evaluating sagging around the eyes, device for evaluating sagging around the eyes, and program

[0001] The present invention relates to a method for determining the reason for a change in eye sagging, an apparatus for determining the reason for a change in eye sagging, and a program, and a method for evaluating eye sagging, an apparatus for evaluating eye sagging, and a program.

[0002] Conventionally, there are known methods for evaluating the effects of cosmetics, beauty treatments, etc. For example, Patent Literature 1 discloses a method in which coordinates representing the degree of swelling around the eyes after a massage or aesthetic treatment are subtracted from coordinates representing the degree of swelling around the eyes before the treatment, and if the subtraction result is positive, the image is displayed brighter, and if the result is zero or negative, the image is displayed darker according to the degree of swelling.

[0003] There are also known methods for evaluating sagging around the eyes. For example, Non-Patent Document 1 reports a method for visually evaluating sagging around the eyes on a 7-point scale from 0 to 6.

[0004] Patent No. 3853720

[0005] T. Ezure et. al., Skin Res. Tech., 17, 510-515(2011)

[0006] However, in Patent Document 1, the subtraction result of the coordinates representing the degree of swelling around the eyes is merely displayed, and it is not possible to determine the reason for the change in sagging around the eyes. Therefore, it has been desired to be able to determine the reason for the change in sagging around the eyes.

[0007] Furthermore, it has not been fully elucidated why the skin around the eyes appears saggy, and therefore there has been a demand for an evaluation based on what factors cause the appearance of saggy skin.

[0008] Therefore, an object of the present invention is to determine the reason for changes in sagging around the eyes.

[0009] Another object of the present invention is to find factors that cause the appearance of sagging around the eyes, and to evaluate the sagging around the eyes based on the found factors.

[0010] A method according to one aspect of the present invention includes acquiring information on the three-dimensional shape of the subject's eyes when the subject is in an upright position before a change in sagging around the eyes occurs, and information on the three-dimensional shape of the subject's eyes when the subject is in an upright position after a change in sagging around the eyes occurs, and determining a reason for the change in sagging around the eyes based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before a change in sagging around the eyes occurs and the three-dimensional shape of the subject's eyes when the subject is in an upright position after a change in sagging around the eyes occurs.

[0011] A method according to one aspect of the present invention includes acquiring information on the three-dimensional shape of the subject's eyes, including the upper cheeks, when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes, including the upper cheeks, when the subject is in a vertical position; evaluating at least one of puffiness of the eyes and sagging of the upper cheeks based on the difference between the three-dimensional shape of the eyes, including the upper cheeks, when the subject is in a horizontal position, and the three-dimensional shape of the eyes, including the upper cheeks, when the subject is in a vertical position; and evaluating sagging of the eyes based on at least one of puffiness of the eyes and sagging of the upper cheeks.

[0012] According to the present invention, it is possible to determine the reason for changes in sagging around the eyes.

[0013] Furthermore, it is possible to find factors that cause the appearance of sagging around the eyes, and to evaluate sagging around the eyes based on the found factors.

[0014] FIG. 1 is a diagram for explaining a shape-up improvement type and a pump-up improvement type according to one embodiment of the present invention. FIG. 2 is a diagram for explaining a shape-up improvement type and a pump-up improvement type obtained by daily skin care using a basic cosmetic product according to one embodiment of the present invention. FIG. 3 is a diagram for explaining a shape-up improvement type and a pump-up improvement type obtained by daily skin care using a scalp massage according to one embodiment of the present invention. FIG. 4 is a diagram for explaining a shape-up improvement type and a pump-up improvement type obtained by daily skin care using an RF / EMS facial beauty device according to one embodiment of the present invention. FIG. 5 is a configuration diagram of a system for determining the reason for change in eye sagging according to one embodiment of the present invention. FIG. 6 is a functional block diagram of an apparatus for determining the reason for change in eye sagging according to one embodiment of the present invention. FIG. 7 is a sequence diagram of a process for determining the reason for change in eye sagging according to one embodiment of the present invention. FIG. 8 is a flowchart of a process for determining the reason for change in eye sagging according to one embodiment of the present invention. FIG. 9 is an example in which a correlation is generated between the reason for change in eye sagging determined for a plurality of subjects and the responses of the plurality of subjects to a predetermined questionnaire, and the correlation is used to estimate the reason for change in eye sagging from the responses to the predetermined questionnaire. FIG. 10 is a diagram for explaining puffiness around the eyes. 1 is a diagram for explaining puffiness around the eyes. FIG. 2 is a diagram showing the relationship between eye sagging score and age. FIG. 3 is a diagram for explaining ptosis of the upper cheeks. FIG. 4 is a diagram showing the relationship between eye sagging score and upper cheek sagging. FIG. 5 is a diagram and regression equation showing the relationship between age and the amount of upper cheek sagging, and the relationship between the amount of upper cheek sagging and eye sagging score. FIG. 6 is a diagram showing the relationship between eye sagging score and puffiness around the eyes and upper cheek sagging. FIG. 7 is a diagram for explaining estimating the amount of upper cheek sagging from either or both of age and eye sagging score. FIG. 8 is a diagram for explaining sagging around the eyes and dark circles around the eyes. FIG. 9 is a configuration diagram of an eye sagging evaluation system according to one embodiment of the present invention. FIG. 10 is a functional block diagram of an eye sagging evaluation device according to one embodiment of the present invention. FIG. 11 is a sequence diagram of eye sagging evaluation processing according to one embodiment of the present invention. FIG. 12 is a flowchart of eye sagging evaluation processing according to one embodiment of the present invention.1 is a block diagram showing an example of a hardware configuration of an eye sagging change reason determination device according to an embodiment of the present invention.

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0016] <Explanation of Terms> - In this specification, the term "eye area" refers to the area of ​​the face defined by the area between the nose and the sideburns or ears, with the upper limit being the lower eyelid and the lower limit being the cheekbone, and refers to the two areas on either side of the nose. - In this specification, the term "horizontal position" refers to a state in which the midline of the face is held still at a right angle to the direction of gravity. - In this specification, the term "vertical position" refers to a state in which the midline of the face is held still parallel to the direction of gravity. - In this specification, the term "change in sagging around the eyes" refers to a change in the condition of the eyes. For example, a change in sagging around the eyes is an improvement in sagging around the eyes.

[0017] [Types of Changes in Sagging Around the Eyes] Hereinafter, types of changes in sagging around the eyes will be described with reference to FIGS.

[0018] FIG. 1 is a diagram for explaining an improved shape-up type and an improved pump-up type according to an embodiment of the present invention.

[0019] For a plurality of test subjects whose eye sagging has changed (specifically, eye sagging has improved), the difference (that is, change) between the three-dimensional shape of the eye of this test subject when this test subject is in vertical position before the eye sagging has changed and the three-dimensional shape of the eye of this test subject when this test subject is in vertical position after the eye sagging has changed is investigated.Then, they are divided into three types: those whose eye volume is smaller after the eye sagging has changed than before (upper part of Figure 1, hereinafter also referred to as shape-up improved type); those whose eye volume is larger after the eye sagging has changed than before (lower part of Figure 1, hereinafter also referred to as pump-up improved type); and those whose eye volume is the same before the eye sagging has changed and after the eye sagging has changed (hereinafter also referred to as dark circle improved type).

[0020] The shape-up improvement type is considered to be a change (e.g., improvement) in sagging around the eyes due to the elimination of edema. The pump-up improvement type is considered to be a change (e.g., improvement) in sagging around the eyes due to the generation of firmness. The dark circle improvement type is considered to be a change (e.g., improvement) in sagging around the eyes due to a change in skin color around the eyes, including at least one of dark circles and pigmentation (hereinafter also referred to as dark circles and pigmentation).

[0021] 2 is a diagram illustrating the shape-up improvement type and pump-up improvement type achieved by skincare products according to one embodiment of the present invention. For subjects (Nos. 1 to 5) whose eye sagging changed due to skincare products, "upper cheek ptosis (VC eye)" was investigated before and after the change (2 weeks after the change). Note that upper cheek ptosis refers to the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0022] As shown in the graph in the upper left of Figure 2, all subjects (Nos. 1 to 5) had less upper cheek ptosis after the change than before the change. Furthermore, the amount of reduction in upper cheek ptosis for each subject (amount of upper cheek ptosis (VCeye) after the change - amount of upper cheek ptosis (VCeye) before the change) was as shown in the graph in the lower left of Figure 2. The subjects were divided into those with improved shape-up (Nos. 1 to 3) and those with improved pump-up (Nos. 4 to 5).

[0023] 3 is a diagram for explaining the shape-up improvement type and pump-up improvement type by scalp massage according to one embodiment of the present invention. For subjects ((a) to (c)) whose eye sagging changed due to scalp massage, "upper cheek ptosis (VCeye)" was investigated before and after the change (2 weeks after the change). The upper cheek ptosis is the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0024] As shown in the graph in the upper left of Figure 3, all subjects ((a) to (c)) had less upper cheek ptosis after the change than before the change. In addition, the amount of reduction in upper cheek ptosis for each subject (amount of upper cheek ptosis (VCeye) after the change - amount of upper cheek ptosis (VCeye) before the change) is shown in the graph in the lower left of Figure 3. The subjects were divided into those with improved shape-up ((a)) and those with improved pump-up ((b) to (c)).

[0025] Figure 4 is a diagram illustrating the shape-up and pump-up improvement types achieved by an RF (radio frequency) / EMS (electrical stimulation) facial beauty device according to one embodiment of the present invention. For subjects ((A) to (C)) whose eye sagging was changed by the RF / EMS facial beauty device, "upper cheek ptosis (VCeye)" was investigated before and after the change (one week after the change). Note that upper cheek ptosis refers to the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0026] As shown in the graph in the upper left of Figure 4, all subjects ((A) to (C)) showed a decrease in upper cheek ptosis after the change compared to before the change. In addition, the amount of upper cheek ptosis reduction for each subject (amount of upper cheek ptosis (VCeye) after the change - amount of upper cheek ptosis (VCeye) before the change) was as shown in the graph in the lower left of Figure 4. The subjects were divided into those with improved shape-up ((A)) and those with improved pump-up ((B) to (C)).

[0027] As described above, the results of the investigation shown in Figures 1 to 4 show that the reason for the change in sagging around the eyes can be determined based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in sagging around the eyes occurs and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in sagging around the eyes occurs.

[0028] [Determining the reason (cause) for change in sagging around the eyes] Hereinafter, the determination of the reason for change in sagging around the eyes of a subject (a person for whom the reason for change in sagging around the eyes is to be determined) will be described with reference to Figures 5 to 8. Specifically, the determination of the reason for change in sagging around the eyes will be described based on whether the volume around the eyes is smaller after the change in sagging around the eyes than before the change, or whether the volume around the eyes is larger after the change in sagging around the eyes than before the change, or whether the volume around the eyes before the change in sagging around the eyes is the same as the volume around the eyes after the change in sagging around the eyes.

[0029] <Overall Configuration> Fig. 5 is a configuration diagram of an eye sagging change reason determination system 1 according to one embodiment of the present invention. The eye sagging change reason determination system 1 includes an eye sagging change reason determination device 10 and a three-dimensional shape measurement device 20. Each of these will be described below.

[0030] The eye sagging change reason determination device 10 is a computer (e.g., a personal computer, tablet, smartphone, server, etc.) for determining the reason for the change in eye sagging. Specifically, the eye sagging change reason determination device 10 determines the reason for the change in eye sagging based on the difference (i.e., change) between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in eye sagging and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in eye sagging. For example, the day on which the three-dimensional shape of the subject's eyes before the change in eye sagging is measured is different from the day on which the three-dimensional shape of the subject's eyes after the change in eye sagging is measured. The eye sagging change reason determination device 10 will be described in detail below with reference to FIG. 6.

[0031] 5, the device 10 for determining the reason for a change in eye sagging is described as a single computer, but it may be implemented as multiple computers (for example, a device such as a smartphone used by the subject, and a server capable of transmitting and receiving data to and from the device). For example, the device such as a smartphone used by the subject may transmit information on the three-dimensional shape of the subject's eyes when the subject is in an upright position before and after a change in the sagging around the eyes to a server, and the server may receive from the server the results of determining the reason for the change in the sagging around the eyes.

[0032] The three-dimensional shape measuring device 20 is a device for measuring the three-dimensional shape of the subject's eyes. The three-dimensional shape measuring device 20 can generate images representing the three-dimensional shape of the subject's face, including at least the eyes. Specifically, the three-dimensional shape measuring device 20 generates an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before changes in sagging around the eyes occur, and an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after changes in sagging around the eyes occur.

[0033] <Functional Block> Figure 6 is a functional block diagram of the device 10 for determining a reason for change in eye sagging according to one embodiment of the present invention. The device 10 for determining a reason for change in eye sagging can include a three-dimensional shape information acquisition unit 101, a determination unit 102, and a presentation unit 103. Furthermore, the device 10 for determining a reason for change in eye sagging can function as the three-dimensional shape information acquisition unit 101, the determination unit 102, and the presentation unit 103 by executing a program. Each of these will be described below.

[0034] The three-dimensional shape information acquisition unit 101 acquires information on the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and information on the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes. For example, the three-dimensional shape information acquisition unit 101 acquires, from the three-dimensional shape measurement device 20, images representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and images representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes. The three-dimensional shape information acquisition unit 101 stores the acquired three-dimensional shape information of the subject's eyes in memory so that the determination unit 102 can refer to it.

[0035] The determination unit 102 determines the reason for the change in sagging around the subject's eyes based on the information on the three-dimensional shape of the subject's eyes acquired by the three-dimensional shape information acquisition unit 111. Specifically, the determination unit 102 determines the reason for the change in sagging around the eyes based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in sagging around the eyes occurs and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in sagging around the eyes occurs. Three reasons will be explained below.

[0036] <Shape-up improvement type> If the volume around the eyes is smaller after the change in sagging around the eyes than before the change, the determination unit 102 determines that the change in sagging around the eyes is due to the disappearance of edema that was originally present in the subject and was a cause of the sagging around the eyes.

[0037] <Pump-up improvement type> If the volume around the eyes is larger after the sagging around the eyes has changed than before the change, the determination unit 102 determines that the change in sagging around the eyes has been caused by an improvement in the lack of firmness that the subject originally had and that was a cause of the sagging around the eyes.

[0038] <Dark circles improvement type> If the determination unit 102 cannot determine whether the volume of the eyes before the change in sagging around the eyes and the volume of the eyes after the change in sagging around the eyes have increased or decreased, it determines that the change in sagging around the eyes has been caused by a change in the skin color around the eyes, including dark circles or pigmentation, which were originally present in the subject and were the cause of the sagging around the eyes.

[0039] The presentation unit 103 can present the result of the determination made by the determination unit 102 (for example, by displaying it on the display means of the eye sagging change reason determination device 10 or another device).

[0040] <Method> Hereinafter, a method for determining the cause of changes in sagging around the eyes will be described with reference to FIGS.

[0041] FIG. 7 is a sequence diagram of the process for determining the reason for a change in eye sagging according to one embodiment of the present invention.

[0042] In step 11 (S11), the three-dimensional shape measuring device 20 generates an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes.

[0043] In step 12 (S12), the device 10 for determining the reason for change in sagging eyes acquires from the three-dimensional shape measuring device 20 an image (the image generated in S11) representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and an image (the image generated in S11) representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes.

[0044] In step 13 (S13), the device 10 for determining the reason for change in sagging around the eyes of the subject determines the reason for change in sagging around the eyes of the subject based on the information on the three-dimensional shape of the eyes of the subject acquired in S12.

[0045] FIG. 8 is a flowchart of a process for determining the reason for a change in eye sagging according to an embodiment of the present invention.

[0046] In step 101 (S101), the three-dimensional shape information acquisition unit 101 of the eye sagging change reason determination device 10 acquires information on the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and information on the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes. For example, the three-dimensional shape information acquisition unit 101 acquires, from the three-dimensional shape measurement device 20, an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position before the sagging around the eyes changes, and an image representing the three-dimensional shape of the subject's eyes when the subject is in an upright position after the sagging around the eyes changes.

[0047] In step 102 (S102), the judgment unit 102 of the device 10 for determining the reason for a change in eye sagging judges the reason for the change in eye sagging based on the volumetric difference between the three-dimensional shape of the subject's eyes when the subject is in an upright position before the change in eye sagging, obtained in S101, and the three-dimensional shape of the subject's eyes when the subject is in an upright position after the change in eye sagging.

[0048] Specifically, if the volume of the eyes around the eyes is smaller after the change in sagging around the eyes than before the change, the determination unit 102 determines that the change in sagging around the eyes is due to the disappearance of edema. Also, if the volume of the eyes around the eyes is larger after the change in sagging around the eyes than before the change in sagging around the eyes, the determination unit 102 determines that the change in sagging around the eyes is due to the generation of firmness. Also, if the volume of the eyes around the eyes before the change in sagging around the eyes and the volume of the eyes around the eyes after the change in sagging around the eyes are the same, the determination unit 102 determines that the change in sagging around the eyes is due to the disappearance of dark circles.

[0049] Other Embodiments In one embodiment of the present invention, a correlation is generated between the reasons for changes in eye sagging determined for a plurality of subjects and the responses of the plurality of subjects to a predetermined questionnaire (e.g., a questionnaire regarding eye sagging), and the reason for the change in eye sagging can be estimated from the responses to the predetermined questionnaire using this correlation. Specifically, the eye sagging change reason determination device 10 acquires the responses to the predetermined questionnaire from a person whose reason for change in eye sagging is to be estimated, and can estimate the reason for the change in eye sagging from the responses to the predetermined questionnaire using the correlation.

[0050] 9 shows an example in which a correlation is generated between the reasons for changes in eye sagging determined for multiple subjects and the responses of the multiple subjects to a predetermined questionnaire, and the reasons for changes in eye sagging are estimated from the responses to the predetermined questionnaire using the correlation. In the example, subjects (Nos. 1 to 5) whose eye sagging changed due to skincare products shown in FIG. 2 were given a questionnaire about their skin concerns before the changes.

[0051] The bottom of Figure 9 is an algorithm chart for estimating the reason for the change in eye sagging actually determined from the questionnaire about skin concerns before the change, using the results of the questionnaire about skin concerns and the reasons for the change in the eye sagging actually determined as training data. By using the algorithm, it is possible to estimate the reason for the change in eye sagging caused by daily skin care using basic cosmetics before the change, simply by having people other than those whose eye sagging changed due to basic cosmetics (Nos. 1 to 5) answer the questionnaire about their skin concerns before the change.

[0052] <Effects> In the present invention, the reason (factor) for the change (e.g., improvement) in sagging around the eyes can be determined by comparing the volume of the eyes before the change in sagging around the eyes (e.g., before the improvement in sagging around the eyes) with the volume of the eyes after the change in sagging around the eyes (e.g., after the improvement in sagging around the eyes).

[0053] An example of a method for determining whether or not the sagging around the eyes of a subject has changed (e.g., improved) will be described below. In one embodiment of the present invention, it is possible to determine whether or not the sagging around the eyes of a subject has changed using the method for evaluating sagging around the eyes described in Figures 10 to 22.

[0054] [Factors Causing Apparent Sagging Around the Eyes] Hereinafter, factors causing apparent sagging around the eyes will be described with reference to FIGS.

[0055] <Eye swelling> First, "eye swelling" will be described with reference to Figures 10 and 11. "Eye swelling" refers to the area that is larger when the subject is in a vertical position than when the subject is in a horizontal position.

[0056] Fig. 10 is a diagram for explaining puffiness around the eyes. When 53 subjects in their 20s to 60s were examined for the presence or absence of puffiness around the eyes, the results shown in Fig. 10 were obtained.

[0057] The boxplot on the left side of Figure 10 shows the ages of those without eye puffiness ("no eye puffiness") and those with eye puffiness ("eye puffiness"). Those without eye puffiness ("no eye puffiness") are mainly distributed between the ages of 25 and 50, while those with eye puffiness ("eye puffiness") are mainly distributed between the ages of 40 and 60.

[0058] The bar graph on the right side of Figure 10 shows the number of people by age group who do not have eye puffiness ("no eye puffiness") and the number of people by age group who have eye puffiness ("eye puffiness"). In people in their 50s and 60s, there are more people with eye puffiness than those without. Furthermore, people without eye puffiness accounted for 62% of the total, while people with eye puffiness accounted for 38% of the total.

[0059] The results shown in FIG. 10 reveal that among people in their 50s and 60s, some have puffiness around the eyes and some do not.

[0060] Fig. 11 is a diagram for explaining puffiness around the eyes. The presence or absence of puffiness around the eyes of 33 subjects in their 50s and 60s was examined, and the results shown in Fig. 11 were obtained.

[0061] The box plot at the bottom right of Figure 11 shows the sagging scores of those without eye puffiness ("no eye puffiness") and those with eye puffiness ("eye puffiness"). Those without eye puffiness ("no eye puffiness") generally ranged in sagging score from 2 to 3, while those with eye puffiness ("eye puffiness") generally ranged in sagging score from 3 to 5.

[0062] Here, we will explain the "eye sagging score (also called the visual score (SSeye))." The "eye sagging score (SSeye)" is a numerical value (7 levels from 0 to 6; the higher the number, the more sagging the eyes appear) based on a visual assessment of sagging around the eyes. 0: No sagging. The area shows a smooth shape. 1: Minor sagging. A slight bulging area is visible near the lower eye. A slight depression is also visible near the inner corner of the eye. 2: Mild sagging. Bulging and depression are clearly visible. 3: Moderate sagging. The bulge expands, and the depression reaches the midpoint between the inner and outer corners of the eye. 4: Severe sagging. The bulge expands, and the depression extends beyond the midpoint between the inner and outer corners of the eye. 5: Marked sagging. The bulge expands throughout the area, and the depression reaches the outer corner of the eye. 6: Very significant sagging, with a bag-like bulge.

[0063] Based on a photograph of the face of the person being evaluated for sagging eyes taken at a 45-degree angle to the left or right, the evaluator determines which of the criteria 0 to 6 the eyes of the person being evaluated for sagging eyes most closely match, and an eye sagging score (visual score (SSeye)) is calculated from the result of the determination. If there are multiple evaluators, a representative value of the scores calculated by each evaluator is used. Representative values ​​include the average, mode, and median. The eye sagging score (visual score (SSeye)) of the person being evaluated for sagging eyes may be calculated using a trained model generated by machine learning using facial images on which the eye sagging score (visual score (SSeye)) has been determined as training data.

[0064] The results shown in FIG. 11 show that people in their 50s or older with a sagging score (visual score (SSeye)) of 4 or higher have puffiness around the eyes, which makes the eyes appear sagging.

[0065] Here, the distribution of eye sagging scores (visual score (SSeye)) and age will be explained.

[0066] Fig. 12 is a diagram showing the relationship between eye sagging score and age. As shown in Fig. 12, the eye sagging score (visual score (SSeye)) increases with age (i.e., the eyes appear more saggy). Fig. 11 shows that people in their 50s or older with an eye sagging score (visual score (SSeye)) of 4 or more have puffiness around the eyes, which makes the eyes appear saggy.

[0067] Below, we will explain the results of an analysis of why the eyes appear to sag in people in their 20s to 60s who have an eye sagging score (visual score (SSeye)) of 4 or less.

[0068] <Upper cheek ptosis> First, "upper cheek ptosis" will be described with reference to Figures 13 to 15. "Upper cheek ptosis" refers to the area that is more depressed when the subject is in a vertical position than when the subject is in a horizontal position (for example, the area surrounded by the dotted line in Figure 13). The volume (cc) of the depression when the subject is in a vertical position than when the subject is in a horizontal position is referred to as VCeye.

[0069] 14 is a diagram showing the relationship between the eye sagging score and upper cheek drooping. As shown in FIG. 14, the larger VCeye was, the higher the eye sagging score (visual score (SSeye)).

[0070] Figure 15 shows the relationship between age and the amount of ptosis of the upper cheek (VCeye), and the relationship between the amount of ptosis of the upper cheek (VCeye) and the sagging score around the eyes. VCeye and the sagging score around the eyes (visual score (SSeye)) were measured for 53 subjects in their 20s to 60s.

[0071] The left side of Figure 15 shows the relationship between age and the amount of upper cheek ptosis (VCeye). As shown in the graph, the older the age, the greater the amount of upper cheek ptosis (VCeye).

[0072] The right side of Figure 15 shows the relationship between the amount of sagging of the upper cheek (VCeye) and the score for sagging around the eyes. As shown in the graph, the greater the amount of sagging of the upper cheek (VCeye), the higher the score for sagging around the eyes.

[0073] The results shown in Figures 13 to 15 reveal that drooping of the upper cheeks contributes to the appearance of sagging around the eyes.

[0074] <Eye puffiness and upper cheek drooping> Figure 16 is a diagram showing the relationship between the eye sagging score and eye puffiness and upper cheek drooping. As shown in Figure 16, the higher the eye sagging score (visual score (SSeye)), the more both eye puffiness and upper cheek drooping were present. Furthermore, the higher the eye sagging score (visual score (SSeye)), the greater the amount of eye puffiness (i.e., the greater the difference between the shape of the puffy part in the horizontal position and the shape of the vertical position when the face is in the vertical position than when the face is in the horizontal position). Furthermore, the higher the eye sagging score (visual score (SSeye)), the greater the amount of upper cheek drooping (i.e., the greater the difference between the shape of the concave part in the horizontal position and the shape of the vertical position when the face is in the vertical position than when the face is in the horizontal position).

[0075] In this way, two factors that make up the appearance of sagging around the eyes were discovered (namely, "eye fullness (protrusion of the eye socket)" and "upper cheek drooping"). Specifically, it was found that people who have both the factors "eye fullness" and "upper cheek drooping" have skin that looks sagging around the eyes. Furthermore, it was found that in people who have both the factors "eye fullness" and "upper cheek drooping," the greater the amount of eye fullness, the more sagging their eyes appear. Furthermore, it was found that in people who have both the factors "eye fullness" and "upper cheek drooping," the greater the amount of upper cheek drooping, the more sagging their eyes appear.

[0076] <Estimation of the Amount of Upper Cheek Ptosis (VCeye)> FIG. 17 is a diagram for explaining the estimation of the amount of upper cheek ptosis (VCeye). The upper left side of FIG. 17 shows that the amount of upper cheek ptosis (VCeye) can be estimated from age by utilizing the good correlation between age and the amount of upper cheek ptosis (VCeye). The regression equation for estimating the amount of upper cheek ptosis (VCeye) from age was obtained from a regression line using the coordinates in the upper left side of FIG. 17. The upper right side of FIG. 17 shows that the amount of upper cheek ptosis (VCeye) can be estimated from the eye sagging score (visual score (SSeye)) by utilizing the good correlation between the eye sagging score (visual score (SSeye)). The regression equation for estimating the amount of upper cheek ptosis (VCeye) from the eye sagging score (visual score (SSeye)) was obtained from a regression line using the coordinates in the upper right side of FIG. 17. The lower part of Figure 17 shows that the amount of upper cheek ptosis (VCeye) can be estimated from age and the eye sagging score (visual score (SSeye)) by utilizing the good correlation between age and the eye sagging score (visual score (SSeye)) and the amount of upper cheek ptosis (VCeye), and shows the multiple regression equation for this estimation. The coefficients and regression statistics of the multiple regression equation for estimating the amount of upper cheek ptosis (VCeye) from age and the eye sagging score (visual score (SSeye)) were obtained by multiple regression analysis from the coordinates in the upper left and upper right parts of Figure 17.

[0077] <Dark circles and pigmentation around the eyes> In addition to the two factors that make up the appearance of sagging around the eyes (i.e., "eye puffiness (protrusion of the eye socket)" and "upper cheek drooping (upper cheek drooping)"), the skin color around the eyes, including dark circles and pigmentation, affects the eye sagging score (visual score (SSeye)).

[0078] FIG. 18 is a diagram illustrating how the eye sagging score (visual score (SSeye)) is affected by the skin color around the eyes, including dark circles and pigmentation. A questionnaire survey of 63 subjects in their 20s to 40s on whether they felt dark circles around their eyes was conducted, and the results shown in the upper part of FIG. 18 were obtained. The eye sagging score (visual score (SSeye)) of those who answered "I feel dark circles around my eyes" was significantly higher than the eye sagging score (visual score (SSeye)) of those who answered "I feel some dark circles around my eyes." This indicates that the eye sagging score (visual score (SSeye)) is evaluated higher depending on the skin color around the eyes, including dark circles and pigmentation.

[0079] The bottom of Figure 18 shows the results of comparing the eye sagging score (visual score (SSeye)) estimated from VCeye with the eye sagging score (visual score (SSeye)), taking advantage of the fact that the eye sagging score (visual score (SSeye)) is evaluated higher depending on the skin color around the eyes, including dark circles and pigmentation. In the bottom of Figure 18, based on vector 1 perpendicular to line 1 (definition formula 1), the results are divided into three groups: a group (black triangles) in which the actual sagging score is higher than the eye sagging score (visual score (SSeye)) estimated from VCeye, a group (white squares) in which the actual sagging score is similar to the eye sagging score (visual score (SSeye)) estimated from VCeye, and a group (black circles) in which the actual sagging score is lower than the eye sagging score (visual score (SSeye)) estimated from VCeye.

[0080] For the group (black triangles) whose actual sagging score was higher than the eye sagging score (visual score (SSeye)) estimated by VCeye, the sagging score was highly evaluated due to the skin color around the eyes, including dark circles and pigmentation. Therefore, it is possible to recommend treatments that will improve not only the two factors that make up the apparent sagging around the eyes (i.e., "puffiness around the eyes (protrusion of the eye sockets)" and "ptosis of the upper cheeks (ptosis of the upper cheeks)"), but also the skin color around the eyes, including dark circles and pigmentation.

[0081] In the group (black circles) whose actual sagging score is smaller than the eye sagging score (visual score (SSeye)) estimated by VCeye, although it is not noticeable from the appearance of sagging around the eyes, the "upper cheek drooping" that constitutes the appearance of sagging around the eyes is significant, and therefore it is possible to recommend treatment to improve the "upper cheek drooping" that constitutes the appearance of sagging around the eyes before the symptoms worsen and become apparent.

[0082] 19 to 22, the evaluation of sagging around the eyes of a subject (a person whose sagging around the eyes is evaluated) will be described. Specifically, the evaluation of sagging around the eyes will be described using two factors: "eye fullness," which is more bulging when the subject is in a vertical position than when the subject is in a horizontal position, and "upper cheek drooping," which is more depressed when the subject is in a vertical position than when the subject is in a horizontal position.

[0083] <Overall Configuration> Fig. 19 is a configuration diagram of an eye sagging evaluation system 2 according to one embodiment of the present invention. The eye sagging evaluation system 2 includes an eye sagging evaluation device 11 and a three-dimensional shape measurement device 20. Each of these will be described below.

[0084] The eye sagging evaluation device 11 is a computer (e.g., a personal computer, tablet, smartphone, server, etc.) for evaluating eye sagging. Specifically, the eye sagging evaluation device 11 evaluates at least one of eye fullness and upper cheek drooping based on the difference (i.e., change) between the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and the three-dimensional shape of the subject's eyes when the subject is in a vertical position, and evaluates eye sagging based on at least one of the eye fullness and upper cheek drooping. Note that the eye sagging evaluation device 11 may be implemented on the same computer as the eye sagging change reason determination device 10. The eye sagging evaluation device 11 will be described in detail later with reference to FIG. 20.

[0085] 19, the eye sagging evaluation device 11 is described as a single computer, but it may be implemented as multiple computers (for example, a terminal such as a smartphone used by the subject, and a server capable of transmitting and receiving data to and from the terminal). For example, the terminal such as a smartphone used by the subject may transmit information on the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and a vertical position to a server, and the server may receive the results of its evaluation of eye sagging from the server.

[0086] The three-dimensional shape measuring device 20 is a device for measuring the three-dimensional shape of the subject's eyes. The three-dimensional shape measuring device 20 can generate images representing the three-dimensional shape of the subject's face, including at least the eyes. Specifically, the three-dimensional shape measuring device 20 generates images representing the three-dimensional shape of the subject's face, including at least the eyes, when the subject is in a horizontal position (specifically, when the midline of the face is held still perpendicular to the direction of gravity) and when the subject is in a vertical position (specifically, when the midline of the face is held still parallel to the direction of gravity).

[0087] <Functional Block> Figure 20 is a functional block diagram of an eye sagging evaluation device 11 according to one embodiment of the present invention. The eye sagging evaluation device 11 can include a three-dimensional shape information acquisition unit 111, an evaluation unit 112, and a presentation unit 113. Furthermore, by executing a program, the eye sagging evaluation device 11 can function as the three-dimensional shape information acquisition unit 111, the evaluation unit 112, and the presentation unit 113. Each of these will be described below.

[0088] The three-dimensional shape information acquisition unit 111 acquires information on the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and information on the three-dimensional shape of the subject's eyes when the subject is in a vertical position. For example, the three-dimensional shape information acquisition unit 111 acquires, from the three-dimensional shape measurement device 20, an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a horizontal position and an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a vertical position. The three-dimensional shape information acquisition unit 111 stores the acquired three-dimensional shape information of the subject's eyes in memory so that the evaluation unit 112 can refer to it.

[0089] The evaluation unit 112 evaluates sagging around the eyes of the subject based on the information on the three-dimensional shape of the eyes of the subject acquired by the three-dimensional shape information acquisition unit 111. Below, the evaluation will be explained separately into evaluation of puffiness around the eyes and drooping of the upper cheeks, and evaluation of sagging around the eyes based on puffiness around the eyes and drooping of the upper cheeks.

[0090] <<Evaluation of eye puffiness and upper cheek sagging>> The evaluation unit 112 evaluates at least one of eye puffiness and upper cheek sagging based on the difference between the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and the three-dimensional shape of the subject's eyes when the subject is in a vertical position.

[0091] Specifically, the evaluation unit 112 calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is bulging more when the subject is in the vertical position than when the subject is in the horizontal position as the amount of bulging around the eyes.The evaluation unit 112 also calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is dented more when the subject is in the vertical position than when the subject is in the horizontal position as the amount of sagging of the upper cheeks.

[0092] <<Evaluation of Sagging Around the Eyes>> The evaluation unit 112 evaluates sagging around the eyes based on at least one of the puffiness around the eyes and the drooping of the upper cheeks.

[0093] Specifically, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of eye swelling. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of upper cheek drooping.

[0094] The presentation unit 113 presents cosmetics or beauty treatments (for example, by displaying them on the display means of the eye sagging evaluation device 11 or another device) according to the evaluation of eye sagging by the evaluation unit 112. The presentation unit 113 can also present the results of the evaluation by the evaluation unit 112 (for example, by displaying them on the display means of the eye sagging evaluation device 11 or another device). The presentation unit 103 can also present an image in which the results of the eye sagging evaluation are superimposed on a facial photograph of the subject.

[0095] <Method> Hereinafter, a method for evaluating sagging around the eyes will be described with reference to FIGS. 21 and 22.

[0096] FIG. 21 is a sequence diagram of the process of evaluating sagging around the eyes according to one embodiment of the present invention.

[0097] In step 21 (S21), the three-dimensional shape measuring device 20 generates images representing the three-dimensional shape of the subject's face, including at least the eyes, when the subject is in a horizontal position (specifically, when the midline of the face is held still perpendicular to the direction of gravity) and when the subject is in a vertical position (specifically, when the midline of the face is held still parallel to the direction of gravity).

[0098] In step 22 (S22), the eye sagging evaluation device 11 acquires from the three-dimensional shape measurement device 20 images (images generated in S21) representing the three-dimensional shape of the subject's face, including at least the eyes, when the subject is in a horizontal position and when the subject is in a vertical position.

[0099] In step 23 (S23), the eye sagging evaluation device 11 evaluates the eye sagging of the subject based on the information on the three-dimensional shape of the subject's eyes acquired in S22.

[0100] In step 24 (S24), the eye sagging evaluation device 11 presents cosmetics or beauty methods according to the evaluation of eye sagging in S23 (for example, displaying on the display means of the eye sagging evaluation device 11 or another device).

[0101] FIG. 22 is a flowchart of the process for evaluating sagging around the eyes according to one embodiment of the present invention.

[0102] In step 201 (S201), the three-dimensional shape information acquisition unit 111 of the eye sagging evaluation device 11 acquires information on the three-dimensional shape of the subject's eyes when the subject is in a horizontal position and information on the three-dimensional shape of the subject's eyes when the subject is in a vertical position. For example, the three-dimensional shape information acquisition unit 111 acquires, from the three-dimensional shape measurement device 20, an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a horizontal position, and an image representing the three-dimensional shape of the subject's face including at least the eyes when the subject is in a vertical position.

[0103] In step 202 (S202), the evaluation unit 112 of the eye sagging evaluation device 11 evaluates at least one of the puffiness around the eyes and the drooping of the upper cheeks based on the difference between the three-dimensional shape of the subject's eyes when the subject is in a horizontal position, obtained in S201, and the three-dimensional shape of the subject's eyes when the subject is in a vertical position.

[0104] Specifically, the evaluation unit 112 calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is bulging more when the subject of S201 is in the vertical position than when the subject is in the horizontal position as the amount of bulging around the eyes. Also, the evaluation unit 112 calculates the difference between the shape in the horizontal position and the shape in the vertical position of a part that is dented more when the subject of S201 is in the vertical position than when the subject is in the horizontal position as the amount of sagging of the upper cheeks.

[0105] In step 203 (S203), the evaluation unit 112 of the eye sagging evaluation device 11 evaluates the eye sagging based on at least one of the eye swelling and upper cheek drooping in S202.

[0106] Specifically, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of eye swelling. Furthermore, when both eye swelling and upper cheek drooping are present around the eyes, the evaluation unit 112 can evaluate that the eyes are sagging more, the greater the amount of upper cheek drooping.

[0107] In step 204 (S204), the presentation unit 113 of the eye sagging evaluation device 11 presents cosmetics or beauty methods according to the evaluation of eye sagging in S203 (for example, displaying them on the display means of the eye sagging evaluation device 11).

[0108] <Effects> The present invention can evaluate sagging around the eyes using two factors: "eye fullness," which is greater when the subject is in a vertical position than when the subject is in a horizontal position, and "upper cheek drooping," which is greater when the subject is in a vertical position than when the subject is in a horizontal position. Therefore, a more objective evaluation can be made than by visual evaluation.

[0109] 23 is a block diagram showing an example of the hardware configuration of the eye sagging change reason determination device 10 and eye sagging evaluation device 11 according to one embodiment of the present invention. The eye sagging change reason determination device 10 and eye sagging evaluation device 11 have a CPU (Central Processing Unit) 1001, ROM (Read Only Memory) 1002, and RAM (Random Access Memory) 1003. The CPU 1001, ROM 1002, and RAM 1003 form a so-called computer.

[0110] The device 10 for determining the reason for a change in eye sagging and the device 11 for evaluating eye sagging may include an auxiliary storage device 1004, a display device 1005, an operation device 1006, an I / F (Interface) device 1007, and a drive device 1008. The hardware components of the device 10 for determining the reason for a change in eye sagging and the device 11 for evaluating eye sagging are connected to each other via a bus B.

[0111] The CPU 1001 is a computing device that executes various programs installed in the auxiliary storage device 1004 .

[0112] The ROM 1002 is a non-volatile memory. The ROM 1002 functions as a main storage device that stores various programs, data, etc. required for the CPU 1001 to execute various programs installed in the auxiliary storage device 1004. Specifically, the ROM 1002 functions as a main storage device that stores boot programs such as a Basic Input / Output System (BIOS) and an Extensible Firmware Interface (EFI).

[0113] The RAM 1003 is a volatile memory such as a dynamic random access memory (DRAM) or a static random access memory (SRAM). The RAM 1003 functions as a main storage device that provides a working area in which various programs installed in the auxiliary storage device 1004 are expanded when the CPU 1001 executes them.

[0114] The auxiliary storage device 1004 is an auxiliary storage device that stores various programs and information used when the various programs are executed.

[0115] The display device 1005 is a display device that displays the internal state of the eye sagging change reason determination device 10 and the eye sagging evaluation device 11, etc.

[0116] The operation device 1006 is an input device through which an administrator of the eye sagging change reason determination device 10 and the eye sagging evaluation device 11 inputs various instructions to the eye sagging change reason determination device 10 and the eye sagging evaluation device 11 .

[0117] The I / F device 1007 is a communication device that connects to a network and communicates with other devices.

[0118] The drive device 1008 is a device for loading a storage medium 1009. The storage medium 1009 here includes media that record information optically, electrically, or magnetically, such as a CD-ROM, a flexible disk, or a magneto-optical disk. The storage medium 1009 may also include semiconductor memory that records information electrically, such as an EPROM (Erasable Programmable Read Only Memory) or a flash memory.

[0119] The various programs to be installed in the auxiliary storage device 1004 are installed, for example, by setting the distributed storage medium 1009 in the drive device 1008 and reading the various programs recorded on the storage medium 1009 by the drive device 1008. Alternatively, the various programs to be installed in the auxiliary storage device 1004 may be installed by being downloaded from a network via the I / F device 1007.

[0120] Although the examples of the present invention have been described in detail above, the present invention is not limited to the specific embodiments described above, and various modifications and changes are possible within the scope of the gist of the present invention as set forth in the claims.

[0121] This international application claims priority based on Japanese Patent Application No. 2021-107017 filed on June 28, 2021, and Japanese Patent Application No. 2021-107018 filed on June 28, 2021, the entire contents of which are hereby incorporated by reference into this international application.

[0122] REFERENCE SIGNS LIST 1 Eye sagging change reason determination system 10 Eye sagging change reason determination device 20 Three-dimensional shape measurement device 101 Three-dimensional shape information acquisition unit 102 Determination unit 103 Presentation unit 2 Eye sagging evaluation system 11 Eye sagging evaluation device 111 Three-dimensional shape information acquisition unit 112 Evaluation unit 113 Presentation unit 1001 CPU 1002 ROM 1003 RAM 1004 Auxiliary storage device 1005 Display device 1006 Operation device 1007 I / F device 1008 Drive device 1009 Storage medium

Claims

1. Acquiring information on a three-dimensional shape of the subject's eyes when the subject is in a vertical position before the sagging around the eyes of the subject changes, and acquiring information on the three-dimensional shape of the subject's eyes when the subject is in a vertical position after the sagging around the eyes changes; determining a reason for the change in the sagging around the eyes based on a volumetric difference between a three-dimensional shape of the subject's eyes when the subject is in a vertical position before the change in the sagging around the eyes and a three-dimensional shape of the subject's eyes when the subject is in a vertical position after the change in the sagging around the eyes; A method for determining the reason for change in sagging around the eyes, comprising:

2. 2. The method for determining the reason for a change in sagging around the eyes according to claim 1, wherein if the volume of the eyes is smaller after the change in sagging around the eyes is smaller than before the change, it is determined that the change in sagging around the eyes is due to the disappearance of swelling that was originally present in the subject and that was a cause of the sagging around the eyes.

3. 2. The method for determining the reason for a change in sagging around the eyes according to claim 1, wherein, if the volume of the eyes is greater after the change in sagging around the eyes than before the change, it is determined that the change in sagging around the eyes is due to an improvement in the subject's original lack of firmness, which was a cause of the sagging around the eyes.

4. 2. The method for determining the reason for a change in sagging eyes according to claim 1, wherein, when it cannot be determined that the volume of the eyes before the change in the sagging eyes and the volume of the eyes after the change in the sagging eyes have increased or decreased, it is determined that the change in the sagging eyes has been caused by a change in skin color around the eyes, including at least one of dark circles under the eyes and pigmentation, which were originally present in the subject and were factors causing the sagging eyes.

5. Acquire information on a three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and information on a three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; evaluating at least one of the fullness of the eyes and the drooping of the upper cheeks based on a difference between a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; Evaluating sagging around the eyes based on at least one of the fullness around the eyes and the drooping of the upper cheeks. The method for determining a reason for change in sagging around the eyes according to claim 1 , further comprising determining whether or not sagging around the eyes of the subject has changed by performing a step of:

6. The method for determining a reason for a change in sagging eye area according to claim 5 , wherein the area around the eyes is evaluated as being sagging when both the puffiness around the eyes and the drooping of the upper cheeks are present around the eyes.

7. The amount of bulging of the eye is the difference between the shape in the horizontal position and the shape in the vertical position of a part that is bulging more when the subject is in the vertical position than when the subject is in the horizontal position, The method for determining a reason for a change in sagging eye area according to claim 5 , wherein the eyes are evaluated as being more sagging as the amount of swelling in the eyes increases.

8. The amount of drooping of the upper cheek is the difference between the shape in the horizontal position and the shape in the vertical position of a part that is more concave when the subject is in the vertical position than when the subject is in the horizontal position, The method for determining a reason for a change in sagging around the eyes according to claim 5 , wherein the eye area is evaluated to be more sagging as the amount of drooping of the upper cheek increases.

9. 6. The method for determining the reason for change in sagging eyes according to claim 5, wherein the amount of sagging of the upper cheek (VCeye) is estimated from age by utilizing the correlation between age and the amount of sagging of the upper cheek (VCeye).

10. 6. The method for determining the reason for change in sagging eyes according to claim 5, wherein the amount of sagging of the upper cheek (VCeye) is estimated from the sagging score around the eyes, taking advantage of the correlation between the sagging score around the eyes and the amount of sagging of the upper cheek (VCeye).

11. 6. The method for determining the reason for changes in sagging around the eyes according to claim 5, wherein the amount of sagging of the upper cheek (VCeye) is estimated from both the eye sagging score and age, taking advantage of the correlation between age and the amount of sagging of the upper cheek (VCeye) and the correlation between the eye sagging score and the amount of sagging of the upper cheek (VCeye).

12. 6. The method for determining the reason for changes in sagging eyes according to claim 5, comprising: when an actual eye sagging score (visual score (SSeye)) is higher than an eye sagging score (visual score (SSeye)) estimated from VCeye, evaluating that the eyes appear sagging due to skin color around the eyes including at least one of dark circles and pigmentation.

13. 6. The method for determining the reason for change in sagging eye area according to claim 5, comprising: when an actual eye sagging score (visual score (SSeye)) is lower than an eye sagging score (visual score (SSeye)) estimated from VCeye, evaluating that the drooping of the upper cheek is greater than the appearance of sagging around the eyes.

14. generating a correlation between the reason for the change in the sagging around the eyes determined and the answer to a predetermined questionnaire by the subject; Using the correlation, a reason for the change in the sagging around the eyes is estimated from the answers to the predetermined questionnaire. The method for determining a reason for change in sagging around the eyes according to claim 1 , further comprising:

15. The method for determining a reason for a change in sagging around the eyes according to claim 1 , wherein the change in the sagging around the eyes is an improvement in the sagging.

16. a three-dimensional shape information acquisition unit that acquires information on a three-dimensional shape of the subject's eyes when the subject is in a vertical position before a change in sagging around the eyes occurs, and information on the three-dimensional shape of the subject's eyes when the subject is in a vertical position after a change in sagging around the eyes occurs; a determination unit that determines a reason for the change in sagging around the eyes based on a volumetric difference between a three-dimensional shape of the subject's eyes when the subject is in a vertical position before the change in the sagging around the eyes and a three-dimensional shape of the subject's eyes when the subject is in a vertical position after the change in the sagging around the eyes; The device for determining the reason for change in sagging around the eyes is provided.

17. Device for determining the reason for changes in eye sagging a three-dimensional shape information acquisition unit that acquires information on a three-dimensional shape of the subject's eyes when the subject is in a vertical position before a change in sagging around the eyes occurs, and information on the three-dimensional shape of the subject's eyes when the subject is in a vertical position after a change in sagging around the eyes occurs; A determination unit that determines a reason for the change in the sagging around the eyes based on a volumetric difference between a three-dimensional shape of the subject's eyes when the subject is in a vertical position before the change in the sagging around the eyes and a three-dimensional shape of the subject's eyes when the subject is in a vertical position after the change in the sagging around the eyes. A program to function as a

18. Acquiring information on a three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and acquiring information on a three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; Evaluating at least one of the fullness of the eyes and the drooping of the upper cheeks based on a difference between a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; Evaluating sagging around the eyes based on at least one of the fullness around the eyes and the drooping of the upper cheeks; A method for evaluating sagging around the eyes, comprising:

19. The method for evaluating sagging around the eyes according to claim 18, wherein the area around the eyes is evaluated as sagging when both the puffiness around the eyes and the drooping of the upper cheeks are present around the eyes.

20. The amount of bulging of the eye is the difference between the shape in the horizontal position and the shape in the vertical position of a part that is bulging more when the subject is in the vertical position than when the subject is in the horizontal position, The method for evaluating sagging around the eyes according to claim 18 or 19, wherein the eye area is evaluated as being more sagging as the amount of swelling around the eyes increases.

21. The amount of drooping of the upper cheek is the difference between the shape in the horizontal position and the shape in the vertical position of a part that is more concave when the subject is in the vertical position than when the subject is in the horizontal position, The method for evaluating sagging around the eyes according to claim 18 or 19, wherein the greater the amount of drooping of the upper cheek, the more sagging the area around the eyes is evaluated to be.

22. 20. The method for evaluating sagging eyes according to claim 18, wherein the amount of sagging of the upper cheek (VCeye) is estimated from age by utilizing the correlation between age and the amount of sagging of the upper cheek (VCeye).

23. 19. The method for evaluating sagging eyes according to claim 18, wherein the amount of sagging of the upper cheek (VCeye) is estimated from the sagging score around the eyes, taking advantage of the correlation between the sagging score around the eyes and the amount of sagging of the upper cheek (VCeye).

24. 19. The method for evaluating sagging around the eyes according to claim 18, wherein the amount of sagging of the upper cheek (VCeye) is estimated from both the eye sagging score and age, taking advantage of the correlation between age and the amount of sagging of the upper cheek (VCeye) and the correlation between the eye sagging score and the amount of sagging of the upper cheek (VCeye).

25. 19. The method for evaluating sagging eyes according to claim 18, comprising evaluating that the eyes appear sagging due to skin color around the eyes including at least one of dark circles and pigmentation when the actual eye sagging score (visual score (SSeye)) is higher than the eye sagging score (visual score (SSeye)) estimated from VCeye.

26. 19. The method for evaluating sagging around the eyes according to claim 18, comprising evaluating that the drooping of the upper cheeks is greater than the sagging around the eyes when the actual sagging around the eyes score (visual score (SSeye)) is lower than the sagging around the eyes score (visual score (SSeye)) estimated from VCeye.

27. The method for evaluating sagging around the eyes according to claim 18 , further comprising: presenting a cosmetic product or a beauty method in response to the evaluation of the sagging around the eyes.

28. The method for evaluating sagging around the eyes according to claim 18, further comprising: presenting an image in which the results of the evaluation of sagging around the eyes are superimposed on a facial photograph of the subject.

29. a three-dimensional shape information acquisition unit that acquires information on a three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; evaluating at least one of the fullness of the eyes and the drooping of the upper cheeks based on a difference between a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; an evaluation unit that evaluates the sagging around the eyes based on at least one of the swelling around the eyes and the drooping of the upper cheeks; The eye sagging evaluation device is provided with:

30. Eye sagging evaluation device a three-dimensional shape information acquisition unit that acquires information on a three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a horizontal position, and information on the three-dimensional shape of the subject's eyes including the upper cheeks when the subject is in a vertical position; evaluating at least one of the fullness of the eyes and the drooping of the upper cheeks based on a difference between a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a horizontal position and a three-dimensional shape of the eyes including the upper cheeks of the subject when the subject is in a vertical position; an evaluation unit that evaluates the sagging around the eyes based on at least one of the swelling around the eyes and the drooping of the upper cheeks. A program to function as a