JP5247393B2 - Lip analysis method - Google Patents

Description

  The present invention relates to a lip analysis method, a lip analysis program, a recording medium, a lip analysis device, and a lip analysis system.

  From the viewpoint of beauty and makeup, it is important to evaluate and quantify the surface shape of skin such as wrinkles. Conventionally, when evaluating the surface shape of the skin, a replica method that transfers the skin surface to an appropriate material or a method that directly magnifies the skin surface with a camera or the like has been used. Observed. Since these methods are simple and easy, they are frequently used. However, it is difficult to objectively identify and quantify the complex surface shape of the skin up to a fine point.

  Therefore, in order to further extract the characteristics of the surface shape of the skin, a technique for processing the surface information of the skin using a computer or the like and digitizing or patterning it has been developed. It is possible to objectively and quantitatively evaluate the surface shape of the skin by analyzing the surface information obtained by measuring the skin surface and its replica with an appropriate photoelectric conversion means using a pattern processing program. Has been done.

On the other hand, when analyzing the lip of the lips, a replica collected from the lips is used (see Non-Patent Documents 1 and 2), but the entire area of the lips cannot be analyzed. Further, since wrinkles are analyzed using two-dimensional image analysis with oblique illumination, there is a problem that the depth value of the wrinkles becomes a pseudo value.
Basic research on lips, Cosmetic Society Journal, Vol. 20, 253-260, 1996 Improving lip wrinkles: Lipstick-related image analysis, Skin Research Technology, 11: 157-164, 2005

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a lip analysis method, a lip analysis program, and a lip analysis apparatus that can accurately analyze wrinkles on the entire lip area. Another object of the present invention is to provide a recording medium in which the lip analysis program is recorded and a lip analysis system having the lip analysis device.

Invention according to claim 1, in lips analysis method, a procedure for measuring the three-dimensional shape data of a region including a lip region, from the three-dimensional shape data of a region including the lip area, three-dimensional analysis of該唇region a step of data Ru to generate, from the three-dimensional analysis data of lip region thus generated, the procedure using a Gaussian filter and the Laplacian filter, for extracting a depth of a predetermined value or more vertical wrinkles and / or Yokoshiwa , A procedure for applying downspout and / or recumbent whose depth is greater than or equal to a predetermined value to the three-dimensional analysis data of the lip region, and recumbent and / or recumbent whose depth is greater than or equal to a predetermined value It is characterized in that it has a procedure for calculating an evaluation index related to downspout and / or recumbent from the three-dimensional analysis data of the lip region .

According to a second aspect of the invention, the lip analysis method according to claim 1, from the three-dimensional analysis data of the generated lip area, and further comprising the steps of calculating an evaluation index related to shape of the lips To do.

According to a third aspect of the present invention, in the lip analysis program, a procedure for generating the three-dimensional analysis data of the lip region from the three-dimensional shape data of the region including the lip region, and the three-dimensional analysis of the generated lip region Using a Gaussian filter and a Laplacian filter from data, a procedure for extracting downspout and / or downside with a depth greater than or equal to a predetermined value , and downspout and / or downside with a depth greater than or equal to a predetermined value From the procedure applied to the three-dimensional analysis data of the lip region and the three-dimensional analysis data of the lip region to which the depth and / or the recumbence whose depth is equal to or greater than a predetermined value, The computer is made to perform the procedure which calculates the evaluation parameter | index regarding.
According to a fourth aspect of the present invention, in the lip analysis program according to the third aspect, the computer further executes a procedure for calculating an evaluation index related to the lip shape from the generated three-dimensional analysis data of the lip region. It is characterized by.

The invention described in claim 5 is a computer-readable recording medium in which the lip analysis program described in claim 3 or 4 is recorded.

The invention according to claim 6 is the lip analyzing apparatus , wherein means for generating the three-dimensional analysis data of the lip region from the three-dimensional shape data of the region including the lip region, and the generated three-dimensional analysis data of the lip region From the above, means for extracting downspout and / or downside with a depth greater than or equal to a predetermined value using a Gaussian filter and Laplacian filter, and downspout and / or downside with a depth greater than or equal to the predetermined value Means applied to the three-dimensional analysis data of the lip region, and from the three-dimensional analysis data of the lip region to which the depth and / or recumbing whose depth is equal to or greater than a predetermined value, It has a means for calculating an evaluation index.
The invention described in claim 7 is the lip analyzer according to claim 6, further comprising means for calculating an evaluation index relating to the shape of the lips from the generated three-dimensional analysis data of the lip region. .

The invention described in claim 8 is characterized in that, in the lip analysis system, the apparatus includes the three-dimensional shape measuring device that measures three-dimensional shape data of a region including the lips, and the lip analyzing device according to claim 6 or 7. To do.

  According to the present invention, it is possible to provide a lip analysis method, a lip analysis program, and a lip analysis apparatus that can accurately analyze wrinkles over the entire area of the lips. In addition, according to the present invention, it is possible to provide a recording medium in which the lip analysis program is recorded and a lip analysis system having the lip analysis apparatus.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of the lip analysis system of the present invention. The lip analysis system 10 includes a three-dimensional shape measurement device 11 that measures three-dimensional shape data of a region including a lip region, and a lip analysis device (computer) 12. The three-dimensional shape measuring apparatus 11 is not particularly limited as long as it can measure the three-dimensional shape data of the region including the lip region. However, in order to improve wrinkle analysis accuracy, the resolution in the XY direction is 50. It is preferable that it is -70 micrometers. Note that the X direction and the Y direction mean a direction substantially perpendicular and a direction substantially parallel to the body axis of the measurement subject, respectively. The lip analyzer 12 includes, but is not limited to, a CPU 12a, a flash memory 12b, a RAM 12c, and the like. The CPU 12a performs tertiary processing of an area including the lip area according to a lip analysis program stored in the program area of the flash memory 12b. Analyze the lips from the original shape data. At this time, the CPU 12a controls the operation of the lip analyzer 12 and stores data and the like necessary for the control in a variable area of the RAM 12c.

  The lip analysis program includes at least a lip region selection program, a shape analysis program, and a wrinkle analysis program. The lip analysis program may be recorded on other recording media (CD-ROM, magneto-optical disk, memory card, flexible disk, etc.). In such a case, an information reproduction device corresponding to each recording medium is added to the lip analysis device 12, and the lip analysis program is installed in the program area of the flash memory 12b from the information reproduction device. Further, the lip analysis program may be transferred to the program area of the flash memory 12b via a network (LAN, intranet, Internet, etc.). In short, the lip analysis program may be loaded into the program area of the flash memory 12b.

  FIG. 2 shows an example of a lip analysis method using the lip analysis system of FIG. First, the three-dimensional shape measurement apparatus 11 is used to measure the three-dimensional shape data (see FIG. 3) of the region including the lip region (S1).

  Next, using the lip area selection program stored in the program area of the flash memory 12b, the lip area to be analyzed is selected from the three-dimensional shape data obtained in S1 (S2). Specifically, first, an observation image of the measurement unit obtained when measuring the three-dimensional shape data of the region including the lip region is read. Next, 19 points (see FIG. 4A) prepared as the basic shape of the lips are moved on the screen according to the shape of the lip of the measurement subject to select the lip region (FIG. 4). (See (b)).

  Further, by applying the selected lip region to the three-dimensional shape data (see FIG. 3), three-dimensional analysis data (see FIG. 5) of the lip region is generated (S3).

  Next, using the shape analysis program stored in the program area of the flash memory 12b, the lip shape is analyzed from the three-dimensional analysis data of the lip area obtained in S3, and an evaluation index related to the lip shape is calculated. (S4). Examples of the evaluation index related to the shape of the lips include the vertical width, the horizontal width, the area, the volume, the ratio of the volume to the area, and the like.

  Further, as shown in FIG. 6, the lip wrinkle is analyzed using the wrinkle analysis program stored in the program area of the flash memory 12b (S5). Specifically, first, a downspout and a recumbent are extracted from the three-dimensional analysis data of the lip region obtained in S3 using a Gaussian filter (S51). In addition, when a cut-off value is set to 1.0 to 2.0 mm, preferably 1.4 to 1.6 mm, and a Gaussian filter only in the X direction is used, smoothing and wrinkles in the substantially X direction are caused. It disappears and only the downspout remains (see FIG. 7A). On the other hand, if a cut-off value is set to 1.0 to 2.0 mm, preferably 1.4 to 1.6 mm, and a Gaussian filter only in the Y direction is used, smoothing and wrinkles in the substantially Y direction will occur. It disappears and only the recumbent remains (see FIG. 7B). Note that the wrinkles that can be eliminated by using either the Gaussian filter only in the X direction or the Gaussian filter only in the Y direction are included in both vertical and horizontal lines. At this time, if the cut-off value is less than 1.0 mm, fine wrinkles may not be included in the vertical hook and / or horizontal hook. It may be included in / or lying down.

  Next, the vertical and horizontal lines are sharpened using a Laplacian filter (S52). Thereby, downpipe and downside can be extracted more accurately.

  Further, downspouts and recumbents having a depth of 10 μm or more are extracted (S53).

  Next, the vertical and / or recumbent are applied to the three-dimensional analysis data of the lip region (S54). FIG. 8 shows three-dimensional analysis data of the lip region to which the vertical and / or horizontal lines are applied. 8A, 8 </ b> B, and 8 </ b> C are cases where a downspout, a downspout, a downspout, and a downside (hereinafter, referred to as a full top) are applied, respectively.

  Finally, an evaluation index related to downpox and / or downside is calculated from the three-dimensional analysis data of the lip region to which downside and / or downside are applied (S55). Examples of the evaluation index regarding downspout and / or downside are area, volume, number, average of depth (maximum depth or average depth), ratio of downside down to downside, and the like. In addition, when the area and volume of the lips are used, an area ratio and a volume ratio are obtained as evaluation indexes relating to downspout and / or recumbent, respectively.

  Note that S4 may be omitted in the lip analysis method of FIG. In this case, the lip analysis program includes at least a lip region selection program and a wrinkle analysis program.

[Evaluation method]
Using the lip analysis method (see FIGS. 1 to 8), the lips and shapes of 75 general women (15 people in their 20s and 60s) were evaluated. As a three-dimensional shape measuring apparatus, PRIMOS Compact (manufactured by GFM, Germany) modified to 62 × 38 mm and measuring accuracy (XY resolution) to 62 × 62 μm is used, and the cut-off of the Gaussian filter in S51. The value was 1.5 mm.

  In addition, the beauty technician visually evaluated the degree of lip wrinkles of 75 general women (15 people in their 20s to 60s). In addition, the case where there was very much wrinkles was determined as +2.0, the case where there was a large amount as +1.0, the case where it was average as ± 0, the case where it was small as -1.0, and the case where it was extremely as -2.0.

[Evaluation results]
9A, 9B and 9C show the evaluation results of the lip wrinkles and the evaluation results of the degree of lip wrinkles by the lip analysis method. From FIG. 9, it can be seen that all of the area ratios of the total lip of the lips, the vertical fold and the horizontal fold, and the maximum depth of the total fold increase with the degree of lip wrinkles and have a correlation. Recognize.

  FIGS. 10 (a) and 10 (b) show the relationship between the area ratio of the lip wrinkles and the degree of lip wrinkles with respect to the age, respectively. From FIG. 10, it can be seen that both the area ratio of the lip wing and the degree of lip wing increase with aging, and the tendency is particularly remarkable in the recumbent.

  FIG. 11 shows the evaluation result of the lip shape by the lip analysis method. FIGS. 11A, 11B, and 11C show the evaluation results of general women whose ages are 28, 39, and 58, respectively.

  FIGS. 12A, 12B, and 12C show the relationship between the lip area, the width, and the ratio of the volume to the area with respect to the age, respectively. From FIG. 12, it can be seen that the ratio of the area of the lips, the vertical width, and the volume to the area decreases with aging. This is considered to be the cause of the increase in recumbency with aging.

  From the above, it can be seen that the age can be estimated by evaluating the area ratio, area, width, ratio of volume to area, etc. of the lips by using the lip analysis method.

It is a block diagram which shows an example of the lip analysis system of this invention. It is a flowchart which shows an example of the lip analysis method using the lip analysis system of FIG. It is a figure which shows an example of the three-dimensional shape data of the area | region containing a lip area. It is a figure explaining an example of the program for lip area selection. It is a figure which shows the three-dimensional analysis data of the lip area | region produced | generated from the three-dimensional shape data of FIG. It is a flowchart which shows an example of the wrinkle analysis program. It is a figure which shows the three-dimensional analysis data of the lip | limb area | region from which the downspout and the recumbent were extracted. It is a figure which shows the three-dimensional analysis data of the lip area | region to which the downspout and / or recumbent were applied. It is a figure which shows the evaluation result of the lip wrinkle by the lip analysis method, and the evaluation result of the degree of the lip wrinkle. It is a figure which shows the relationship of the area ratio of a lip wrinkle, and the grade of a lip wrinkle with respect to an age. It is a figure which shows the evaluation result of the shape of the lip by the lip analysis method. It is a figure which shows the relationship of the ratio of the volume with respect to the area of the lips, the width | variety, and the area with respect to an age.

Claims (8)

A procedure for measuring the three-dimensional shape data of the region including the lip region;
From the three-dimensional shape data of a region including the lip area, the procedure Ru to produce a three-dimensional analysis data of該唇area,
From the three-dimensional analysis data of lip region thus generated, the procedure for extracting the vertical wrinkles and / or Yokoshiwa is using a Gaussian filter and the Laplacian filter, is more than a predetermined value depth,
Applying a downspout and / or a recumbent whose depth is a predetermined value or more to the three-dimensional analysis data of the lip region;
It has a procedure of calculating an evaluation index related to downspout and / or recumbent from three-dimensional analysis data of a lip region to which downspout and / or downspout with the depth equal to or greater than a predetermined value is applied. Lip analysis method. Lips analysis method according to claim 1, the three-dimensional analysis data of lip region mentioned above generates, further comprising the steps of calculating an evaluation index related to shape the lips. Generating three-dimensional analysis data of the lip region from the three-dimensional shape data of the region including the lip region;
From the generated three-dimensional analysis data of the lip region, using a Gaussian filter and a Laplacian filter, a procedure for extracting a vertical line and / or a horizontal line having a depth equal to or greater than a predetermined value ;
Applying a downspout and / or a recumbent whose depth is a predetermined value or more to the three-dimensional analysis data of the lip region;
Causing a computer to execute a procedure for calculating an evaluation index related to downspout and / or recumbent from three-dimensional analysis data of a lip region to which a downspout and / or downspout having a depth equal to or greater than a predetermined value is applied. Feature lip analysis program.   4. The lip analysis program according to claim 3, further causing a computer to execute a procedure for calculating an evaluation index related to a lip shape from the generated three-dimensional analysis data of the lip region. A computer-readable recording medium,
5. A recording medium in which the lip analysis program according to claim 3 is recorded. Means for generating three-dimensional analysis data of the lip region from the three-dimensional shape data of the region including the lip region;
Means for extracting a vertical and / or recumbent whose depth is a predetermined value or more from the generated three-dimensional analysis data of the lip region using a Gaussian filter and a Laplacian filter ;
Means for applying downspout and / or recumbent whose depth is a predetermined value or more to the three-dimensional analysis data of the lip region;
Characterized in that it has means for calculating an evaluation index related to downspout and / or recumbent from three-dimensional analysis data of a lip region to which a downspout and / or downspout whose depth is equal to or greater than a predetermined value. Lip analysis device.   The lip analyzing apparatus according to claim 6, further comprising means for calculating an evaluation index related to a lip shape from the generated three-dimensional analysis data of the lip region. A three-dimensional shape measuring device for measuring three-dimensional shape data of a region including the lip region;
A lip analysis system comprising the lip analysis device according to claim 6 .