JP5043323B2 - Makeup information provision system - Google Patents

Description

The present invention relates to cosmetic information providing system for providing a cosmetic information for applying makeup adapted lips form.

    Conventionally, for the purpose of use in beauty and makeup, face classification, eye makeup method, foundation selection method for reproducing natural skin color, and the like have been proposed. For example, in Japanese Patent No. 3529954, the features of facial features are grasped from the length of the face, the arrangement state of the morphological elements of each part of the face such as eyes, eyebrows, mouth, nose and the contour shape of the morphological elements. A method for classifying by feature and a face classification map including coordinates generated based on the classification method are disclosed. However, this face classification method classifies the morphological elements of the entire face based on the arrangement state or the contour shape, and cannot be applied to extract and classify only the lips.

    In Japanese Patent No. 3423311, a unique color is determined for the glossy color, contour color, or impression color of the iris of the eye to be made, and a makeup cosmetic that matches the determined individual color, such as a pencil, is disclosed. A makeup method for the eye is proposed, which is applied to each face zone by selecting the contour color and impression color, mascara corresponding to the contour color, and eye shadow and lipstick to match the gloss color. . In this makeup method, it has been proposed to match the lipstick applied to the lips with the glossy color of the iris of the eye. However, this eye makeup method was developed for the purpose of being applied to Westerners who have a diverse range of eye iris colors. I could not do it.

    Japanese Patent No. 2986214 discloses a database of combinations of the skin color of the inner region, the outer region of the arm, or both, and the foundation color related to the skin color, and measures the skin color of a specific person. A foundation color for reproducing a natural skin color of a human by searching for a skin color that is approximated by comparing the skin color with the skin color stored in the database and determining a suitable foundation color based on the searched skin color A determination method and an apparatus therefor have been proposed. However, this method is suitable for selecting a foundation color that reproduces the original skin color of the target human, but the shape, mouth width, ratio of upper and lower lips, etc. must be considered as factors when making up. It could not be applied to the lip makeup method.

    In JP-A-8-206099, the lip length relative to the width of the face is used as an index of shape, and the lip area obtained by the product of the absolute length and width of the lips is used as an index of size. A method for classifying lips aesthetically has been proposed, but with this classification method it is not possible to grasp the difference in lip shape, so to propose a makeup method that corrects the lip shape. Was not beneficial. Japanese Laid-Open Patent Application No. 8-202754 discloses facial skin color information, group information obtained by grouping the preference for human colors by tolerances for colors, makeup image information desired by the user, and makeup corresponding to these information A lip color advice system has been proposed in which lip colors suitable for images are made into a database, and lip colors suitable for customer's skin color information, group information, and makeup image information are searched and displayed. Such a lip color advice system merely proposes a lip color that suits the user's lips, and does not propose a method for making the lips beautiful while correcting the shape of the lips.

Japanese Patent No. 3529954 Japanese Patent No. 3423311 Japanese Patent No. 2986214 JP-A-8-206099 JP-A-8-292754

    The present invention analyzes a lip shape in two-dimensional and three-dimensional manner using a lip image on a computer screen, and determines a balance in the lip shape based on the two-dimensional analysis information. The three-dimensional effect of the lips is determined based on the analysis information, and lip shape correction information is proposed for making the lips have an optimal morphological balance based on the determination results.

As a result of investigations to solve the problem, an image of the subject's face is captured in a computer, and the upper lip crest position, upper lip valley position, lip center position, mouth corner position, and lower It is possible to determine the shape of the subject's lips by measuring the center position of the lower edge of the lips. Also, the position under the nose, the center position of the nostril, the center position of the lips, the position of the black eye, and the center of the chin The present invention finds that the ideal lip shape can be calculated from the position, and that the makeup information for correcting the lips can be provided to the subject by comparing the subject's lips with the ideal lips. It came to be completed.

That is, the present invention captures an image of the subject's face into a computer, and from the image, the position of the upper lip crest, the position of the upper lip valley, the position of the lip center, the position of the mouth corner, and the center position of the lower end of the lower lip. The subject's lip shape is determined by automatic measurement, and the subject's lip shape is calculated from the position under the nose, the center position of the nostril, the center position of the lips, the position of the black eye, and the center position of the chin. The makeup information providing system is characterized by providing makeup information for correcting the lips of a subject person by comparing with the ideal lip shape.

Furthermore, the present invention draws a perpendicular line from the inside of the black eye to the horizontal line passing through the center position of the lips, and makes the point where the perpendicular line intersects the horizontal line the ideal lip mouth position, on the line connecting the center position of the lips and the center position of the chin. In this case, the position of the lower end of the lower lip of the ideal lip is defined as a position that is 1/3 of the length from the center position of the lip to the center position of the chin and descends from the center position of the lip. It is a makeup information providing system .

Further, according to the present invention, a vertical line is drawn from the center position of the nostril to a horizontal line passing through the center position of the lips, and the height from the horizontal line on the vertical line is a length from the position under the nose to the center position of the lips. The position corresponding to 1/3 is the position of the peak of the upper lip of the ideal lip, and the ideal lip is tilted downward at an angle of 10 to 15 degrees with respect to the horizontal from the position of the peak of the upper lip of the ideal lip. It is a makeup information providing system characterized by the location of the valley of the upper lip .

Furthermore, the present invention is a makeup information providing system that displays an outline of a lip of an object person and an outline of an ideal lip on the same screen of a computer .

Furthermore, the present invention is characterized in that a function of automatically measuring the luminance of the lips from the image and determining the stereoscopic effect of the subject's lips from the difference in luminance values between the center position of the lips and the position of the mouth corner is further added. It is a makeup information provision system .

    According to the lip makeup method and apparatus of the present invention, it is possible to analyze and determine the morphological characteristics of the lips on the computer screen, and propose correction information by makeup, and the most balanced and clean while facing the customer. You can propose makeup information for visible lips.

    Preferred embodiments of the present invention will be described in detail below. The present invention uses the method for classifying morphological features of lips previously proposed by the applicant of the present invention, photographs the lips of the makeup subject, captures the images on a computer, and displays them on the screen. Analyzing the form of the subject in two and three dimensions, determining the morphological characteristics of the subject's lips based on the analyzed information, and providing makeup information for making the determined form a suitable balance form It is characterized by doing. The planar analysis is performed by measuring the positions of a plurality of preset points. The three-dimensional analysis determines the three-dimensional effect of the lips, that is, whether the lips are full or not, and adjusts the lip thickness when applying makeup. The measurement is made by measuring the amount of change in the luminance value of the lips.

    1 and 2 are diagrams showing standard proportions of facial features that have been known in the past. Cosmetic makeup manufacturers and beauty consultants who provide beauty information to customers at stores are advised to make up customers. Widely used for education and education. This standard proportion is obtained by morphing, using computer graphics technology, a plurality of faces that have been evaluated as beauty by aggregating questionnaire surveys to a plurality of judges. In this standard proportion, the lip proportion is numerically characterized using mouth position, mouth width and standard lip characteristics as indicators. That is, in the figure, the position of the lips is the lower lip underline at the position (c) obtained by dividing the length from the nose (a) to the chin (b) into two equal parts. Both ends of the lips are located vertically inside the black eye), and the standard lips are located at 3/4 from the corner of the lip to the center of the lips. The thickness ratio is set to 1: 1.5.

    However, with lip makeup based on such standard proportions, it is difficult to propose a makeup corresponding to individual lips. In addition, this standard proportion was created at least 20 years ago, and not only the proportion of the face but also the shape and size of the lips and chin with changes in the eating habits due to the changing times. Because it seems to have changed, it may not be suitable for modern female lip makeup. For example, the lips of a modern 20-year-old woman have a chubby image with a narrowed mouth width, a close ratio of upper and lower lips, and an increased thickness compared to lips 20 years ago. Is different from the standard proportions. In addition, the conventional standard lip proportion has only four factors as the index: mouth position, mouth width, lip crest position, and upper / lower lip ratio. The number of elements is considered to be rough.

    As described above with reference to FIGS. 1 and 2, the lip top / bottom ratio in the conventional standard proportion was 1: 1.5. There is a possibility that the top / bottom ratio of the lips may have changed. Therefore, when measuring the upper and lower dimensions of the lips of 50 modern women and calculating the average value, it was understood that the ratio was 1: 1.3 to 1: 1.43. In other words, the vertical ratio is changed from 1: 1.5. However, the ratio of the upper and lower lips is 1: 1.3 to 1: 1. It can be said that the range has a width of 5. Therefore, when applying makeup to the lips, it is considered that if the lips are made to fall within this range, it is possible to obtain an evaluation that the lips are balanced in the vertical direction.

The present invention uses the lip top / bottom ratio based on the current female lip proportions that the applicant has previously proposed to be beautiful, and uses the numerical values that characterize the proportions slightly. . In other words, in the lip proportion analysis method according to the previous invention, analysis is performed based on the position of the upper lip crest and the center position of the lower lip lower end. When using a captured image, it may be unclear. Therefore, in the present invention, placing the reference proportions recognition in the center of the upper lip and lower lip, it was analyzed proportions the center as a reference. It should be noted that, as a reference position, it is a matter of course that the conventional proportion analysis method shown in FIG.

    With reference to FIGS. 3 to 13, specific means for performing two-dimensional analysis and three-dimensional analysis of the lip proportion, a determination method, and creation of makeup information will be sequentially described. Referring to FIG. 3, the face position is determined with reference to the face illustration displayed on the left side of the figure, the face is photographed, and image information is captured and stored in a computer. From the captured face image, the positions of a plurality of points set in advance for measuring the morphological characteristics of the lips are measured. In this embodiment, as shown in FIG. 4, the number of points is set to the following 14 points. That is, the position of both sides of the nose (2 points), the center position of the nostrils (2 points), the position of the upper lip crest (2 points), the position of the valley of the upper lip, the center position of the lips, the position of the mouth corner (2 points), The lower lip center position, the chin center position, and the chin side positions (2 points) are 14 points. Note that the position and number of the points are not particularly limited, and the position and number can be changed as long as the morphological characteristics of the lips can be grasped and it is suitable for creating makeup information. I can do it.

    In creating the makeup information, the image of the subject's face is used and the accumulated image information is used to measure the positions of these 14 points that specify the lip proportion on the image, and the planar morphological features of the lips are determined. analyse. These point positions are preferably measured automatically by a computer so that the positions can be manually adjusted when the point positions are deviated. The planar features analyzed by measuring the position of 14 points are determined for the following five items, and the balance of the entire lip of the subject is grasped. Measure the difference of the grasped target person's balance against the optimum balance as a reference, and display the makeup method to correct the part that is different from the reference as makeup information on the screen and provide it to the target person To do. The lip balance as a reference depends on the proportion of lips evaluated as beautiful, which is grasped by the lip classification method of the above-described invention.

The five items for determining the balance of the lip shape are the five items of the mouth corner position, the lip center position, the lower lip center position, the upper lip crest position, and the upper lip crest and trough angles. Referring to FIG. 5, the criteria of the five items in the optimal balance are: the position of the mouth corner is the position where the inner side of the black eye is lowered, and the position of the mountain of the upper lip is 1 / the distance from the lower nose to the center position of the lip. 3 position, the center position of the lower edge of the lower lip is 1/3 of the distance from the center position of the chin to the center position of the lip, the peak position of the upper lip is the position where the center of the nostril is lowered, the peak and valley of the upper lip The angle is based on an angle that is lowered by 10 degrees from the mountain to the valley.

In accordance with the optimal lip reference balance, the balance of the makeup target lips is compared to determine the difference between them, and corrected makeup information for correcting the target lips to the reference balance is created and displayed on the screen. The correction method will be described with reference to the drawings. First, referring to FIG. 6 showing a method for determining the position of the mouth corner, a horizontal line is drawn from the center position of the lips to measure whether the mouth corner position is above or below the horizontal line. If the mouth corner is above the horizon, no correction is made. If it is underneath, the lips are not tightened and appear loose, so corrective makeup is applied so that the position of the mouth corner is corrected upwards with a limit of 2 mm. The reason why the adjustment limit is set to 2 mm is to avoid unnatural adjustment results, and a beauty consultant advises customers about lip makeup at stores, etc., and proposes a makeup method that brings them closer to standard lips. In this case, it is normal to change within a range of about 2 mm, and if the correction range exceeds 2 mm, the range of correction becomes too large and the makeup becomes unnatural. If the initial mouth corner point position is shifted, the optimum balance point is also shifted, so the mouth corner point is adjusted manually. This correction range of 2 mm is the same for other parts.

Next, correct the shape of the peaks and valleys of the upper lip. Referring to FIG. 7, the position of the peak of the upper lip is determined by setting the position based on the position of 1/3 of the distance from the lower nose to the center position of the lip and the position lowered from the center of the nostril, The makeup point is set on the screen so that the peak of the upper lip comes to the determined position. Next, as shown in FIG. 8, the angle at which the position of the valley of the upper lip is lowered by 10 degrees from the mountain toward the valley is set based on the reference. This angle was set in the range of 10 to 15 degrees in the previous invention, but 10 degrees was preset in this embodiment. However, it is not limited to 10 degrees, and can be arbitrarily set within a range of 10 to 15 degrees. Next, as shown in FIG. 9, the center position of the lower end of the lower lip is set at 1/3 of the distance from the center position of the lips to the center position of the chin, and further, as shown in FIG. The line is drawn by connecting the center position and the three point positions on both sides with an arc, and the lower lip line is drawn in a shape similar to the arc shape of the lower jaw. This lower jaw line may be drawn with a scale jig for drawing an arc, but it is automatically drawn by deforming the basic form following the lower jaw line on the computer screen. It is possible.

    In this way, with respect to the balance of the entire lip of the subject, a line for grasping the difference in comparison with the optimal balance based on the criteria of the five items and correcting it to the optimal balance as shown in FIG. Ask for. In FIG. 11, the solid line indicates the morphological outline of the subject's lips, and the dotted line indicates the optimal balance form corrected based on the reference. The outline indicated by the dotted line shows the optimal form balance, and the beauty consultant advises how to apply the optimal balance to the lips based on the screen, and the subject moves the lips along the corrected line. By drawing, you can apply makeup to make your lips beautiful and shaped.

FIG. 12 proposes a method for determining the thickness of a lip by means of a three-dimensional analysis of the lips and a correction method thereof. Referring to FIG. 12, the thickness of the lips, that is, the three-dimensional analysis, is determined by the difference in the luminance value on the image between the center position of the lips and the mouth corner. If there is a difference, it is determined to be stereoscopic, and if there is no difference, it is determined to be planar. As shown in FIG. 12, an enlarged image of the lips is displayed on the screen, and when the analysis button is pressed, the image changes to a moire photo, the difference in brightness value is clearly displayed, and a map of the difference is also displayed. The Using this stereoscopic analysis image, the beauty consultant explains the stereoscopic proportions of the subject's lips and proposes a makeup method. For example, if the subject's lips have a three-dimensional effect, a makeup method that reduces the three-dimensional effect by drawing a thin outline is proposed. Conversely, if the subject's lips are flat, draw a thick outline. The three-dimensional effect is corrected by changing the brightness of the color that draws the lip line, the color that draws the luminance part of the lip, and the gloss slip color for glossing.

    FIG. 13 shows an enlarged photograph of the subject's lips, a corrected makeup screen proposed by the above two-dimensional analysis, and a screen for displaying the three-dimensional lip feeling by three-dimensional analysis arranged in one screen. The beauty consultant proposes the optimal correction makeup method with reference to this screen, and the target person visually confirms the effect by using the correction makeup proposed for the planar and three-dimensional features of his lips. Is possible.

Illustration showing standard proportions of facial features Illustration showing standard proportions of lips Figure showing the face image of the subject Diagram showing magnified image of lips and points of plane analysis Screen showing the planar analysis results Screen showing customer position correction based on flat analysis results Same as above, top lip mountain position index screen Same as above, upper lip valley position index screen Same as above, lower lip position index screen Same as above, lower lip line index screen Screen showing the contour line of the subject's lips and the contour line of the corrective makeup by flat analysis Screen showing three-dimensional analysis A screen with a magnified photo of the subject's lips, an outline of the flat correction makeup, and an image showing the three-dimensional appearance of the lips

Claims (7)

Capture the face image of the subject into a computer and automatically measure the position of the upper lip crest, upper lip valley, lip center, mouth corner, and lower lip center from the image. The shape of the person's lips, and the shape of the subject's lips is calculated from the position under the nose, the center position of the nostril, the center position of the lips, the position of the black eye, and the center position of the chin. by comparison with the shape, makeup information providing system characterized by providing a cosmetic information for compensation lips of the subject. 2. The makeup information providing system according to claim 1 , wherein a perpendicular line is drawn from the inside of the black eye to a horizontal line passing through the center position of the lips, and a point where the perpendicular line intersects the horizontal line is set as an ideal lip mouth position . A vertical line is drawn from the center position of the nostril to the horizontal line passing through the center position of the lips, and the height from the horizontal line is equivalent to 1/3 of the length from the position under the nose to the center position of the lips. The makeup information providing system according to claim 1 or 2, wherein the position to be used is a position of a crest of the upper lip of an ideal lip . 4. The makeup information according to claim 3, wherein the position of the valley of the upper lip of the ideal lip is at a position inclined downward at an angle of 10 to 15 degrees with respect to the horizontal from the position of the upper lip of the ideal lip. Offer system . The position that is on the line connecting the center position of the lips and the center position of the chin and is lowered from the center position of the lips by a third of the length from the center position of the lips to the center position of the chin. The makeup information provision system according to any one of claims 1 to 4, wherein the makeup information provision system is a center position of a lower end of the lower lip . The cosmetic information providing system according to any one of claims 1 to 5, wherein the contour line of the subject's lips and the contour line of the ideal lips are displayed on the same screen of the computer . 7. A function of automatically measuring the brightness of the lips from the image and further determining the stereoscopic effect of the subject's lips from the difference in brightness value between the center position of the lips and the position of the mouth corner. The makeup information providing system according to any one of the above.

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