JP2000235589A - Method and device for displaying article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the reality of clothes by executing a display processing in a peculiar form area based on a rule different from a display processing in a general shape area, generating display data in a shape model and displaying the surface shape of an article based on display data. SOLUTION: Plural parts called as polygons are modeled based on the shapes of sheet-like parts (step 1). A normal in an initial polygon node is calculated (step 2) and an adjusting line which is to stereoscopically be expressed such as a sewing line, namely, a peculiar shape area is designated (step 3). A normal direction is adjusted on the node on the line being the peculiar shape area, the display processing is executed based on a rule different from the display processing in the general shape area and display data in the shape model is generated (step 4). The surface shape of an article is displayed based on display data and initial polygon shape data is updated/preserved (step 5).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for displaying a three-dimensional line including the thickness of a sheet-shaped part by using a computer, and an article using such a three-dimensional line display method. It relates to a manufacturing method. More preferably, in easy-order sales of clothing and clothing, etc., a three-dimensional line used for displaying three-dimensional lines such as thickness and sewing lines and press lines on the shape model of clothing and clothing on a computer. The present invention relates to a method and an apparatus for creating line data and a method for manufacturing clothing and accessories using a three-dimensional line display method.

[0002]

2. Description of the Related Art As a method for confirming the finished state of clothing and accessories before manufacturing, a three-dimensional clothing state based on a pattern is created on a computer, and this is displayed on a graphic display or the like. There is a method of displaying and confirming on a display device. The three-dimensional model of clothes handled by this method is modeled as an aggregate of a plurality of small elements, and the elements are triangular or polygonal
It is common to use square, thin elements.

[0003] In order to create a three-dimensional polygon model, a hand-made based on a pattern or a method of taking in a completed clothing shape using a three-dimensional scanner and converting it into a polygon is used. A method of predicting the clothing shape of clothes based on the physical properties of the material with the body shape as the constraint condition based on the initial shape (hereinafter, the calculation of the shape of the clothes by the mechanical calculation taking the physical properties of the material into account) This is called a dressing calculation). For example, the applicant's patent no.
No. 84093, Japanese Unexamined Patent Publication No. 10-13 by the present applicant.
No. 4095, the method of JP-A-5-31979, and the like.

[0004]

However, in the three-dimensional polygon model created by the above method, since the polygon has no thickness, it is difficult to reproduce the sense of thickness of the material when displaying.

In order to realistically reproduce the sewn portions and folds in the shape of the garment after sewing, it is necessary to use fine polygons in these portions to express the irregularities of the details. In many cases, the display of the sewing line or the press line is omitted in view of the labor and data size.

[0006] As a result of the omission, the displayed three-dimensional polygon of the clothes is the same as the one composed of one piece of cloth, although a plurality of cloths are actually sewn. And lacked sharpness as clothing.

According to the present invention, by using optical processing at the time of display, it is possible to avoid troublesome modeling and to avoid an extreme increase in data size, while also achieving a unique thickness region such as a material thickness and a sewing line or a press line. Is provided in a more realistic manner, and the reality of clothes at the time of display is improved.

[0008]

According to the present invention, there is provided, in accordance with the present invention, a multiplicity of microstructures representing a shape of an article including a sheet having a general shape region and a unique shape region inside or at an edge. A method of displaying the article using a shape model that is an aggregate of elements, wherein the display process in the unique shape region is performed based on a different rule from the display process in the general shape region, whereby the shape model is displayed in the shape model. , And displaying a surface shape of the article based on the display data.

Further, according to a preferred aspect of the present invention, there is provided a method for displaying an article, wherein the minute element has a display parameter, and generates display data based on the display parameter.

According to a preferred aspect of the present invention, there is provided a method for displaying an article, wherein the display parameter is a normal vector of a surface of a microelement or a node.

According to a preferred aspect of the present invention, there is provided an article display method for interpolating and generating display data in a shape model based on the plurality of normal vectors.

Further, according to a preferred aspect of the present invention, there is provided an article display method, wherein the shape of the shape model in the unique shape area is a simpler shape than the shape of the article in the unique shape area.

According to another aspect of the present invention, there is provided a shape model which is an aggregate of a large number of minute elements representing the shape of an article including a sheet having a general shape region and a unique shape region inside or on an edge. An apparatus for displaying the article using the display unit, the display processing in the unique shape area is performed based on a different rule from the display processing in the general shape area, means for generating display data in the shape model, Means for displaying the surface shape of the article based on the display data.

Further, according to a preferred aspect of the present invention, there is provided an article display device, wherein the minute element has a display parameter.

Further, according to a preferred aspect of the present invention, there is provided an article display device, wherein the display parameter is a normal vector of a surface of a minute element or a node.

According to a preferred aspect of the present invention, there is provided an article display device having means for interpolating and generating display data in a shape model based on the plurality of normal vectors.

According to a preferred aspect of the present invention, there is provided an article display device in which the shape of the shape model in the unique shape area is simpler than the shape of the article in the unique shape area.

Further, according to a preferred aspect of the present invention, there is provided an article display apparatus having means for synthesizing and displaying color pattern and / or texture data of a sheet material.

Further, according to a preferred aspect of the present invention, there is provided an article display device, wherein the article is clothing and / or clothing.

According to another aspect of the present invention, an article is displayed using the above-described article display method, the specification of the article is determined based on the display, and the article is manufactured based on the determination. A method for producing an article is provided.

According to another aspect of the present invention, there is provided an article manufactured by the above-described method for manufacturing an article.

According to another aspect of the present invention, there is provided a computer-readable recording medium having recorded thereon a program for causing a computer to execute the procedure of the method for displaying an article.

According to another aspect of the present invention, there is provided a computer-readable recording medium in which data of a shape model of an article including a sheet is recorded, wherein the data of the shape model indicates the shape of the article. There is provided a computer-readable recording medium having a portion recording a large number of microelements to be displayed and a portion recording display parameters corresponding to the microelements.

In the present invention, a peculiar shape region is a region having a peculiar surface shape such that the shape is changed more complicatedly or steeply than the other flat surface or the whole surface of the article having a smooth curved surface. For example, in the case of apparel, sewing lines, free edge lines (edges) such as free ends, press lines,
Examples thereof include an end portion of the cloth, a joint portion between fabrics, a fold, and the like, such as a Mercedes-Benz portion. Hereinafter, it may be simply referred to as an adjustment line. In addition, it is sufficient to define the unique shape area in a range necessary for actual display, and a part that does not necessarily need to be displayed realistically for the whole real display, such as an inconspicuous edge of the fabric. May be treated as a general shape area, and especially for parts that need to be displayed precisely, even if it is a part that may be treated as a special shape area such as a press line, a precise shape model using smaller microelements May be constructed.
In this case, it may be displayed based on the same rule as the general shape area.

Further, in the present invention, the general shape region means a region other than the unique shape region in the article.

In the present invention, a display parameter refers to data used for display, and a geometrical parameter such as a normal vector and a reflectance of a minute element or a node that affects the display characteristics of the minute element. Chemical and physical parameters.

In the present invention, the display data is
Refers to data prepared for displaying an article, such as the position, color, and brightness data of each pixel to be displayed on a display, or profile information, dot data, and vector data for printing. .

In the present invention, a rule refers to a display calculation principle and a formula for displaying an article, a method of creating display data, a method of creating display parameters, a method of changing display parameters, and the like.

Also, in the present invention, a microelement refers to a minimum unit constituting a shape model, using a plane polygon such as a triangle or a quadrangle, or using a solid such as a triangular pyramid or a sphere. Or you can. When a linear element is used, a surface composed of three or more linear elements exposed on the surface of the object can be used as the surface of the minute element. Further, even when a set of point coordinates is simply used as data, each point or a set of a plurality of points can be treated as one line element or polygon.

In the present invention, the normal vector as a display parameter refers to unit vector data set corresponding to the surface of a minute element or a node. For example, to express specular reflection,
The normal vector can be determined so as to coincide with the angle bisector with respect to the center direction of the emission of the specular reflection light. in this case,
In the general shape region, usually, it almost coincides with the geometric normal vector of the microelement surface. Hereinafter, a normal vector as a display parameter may be simply referred to as a normal line.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a flowchart showing a schematic procedure of an embodiment of the present invention. In this embodiment, as a step 1, a part is modeled as an aggregate of a plurality of small elements called polygons as shown in FIG. 1 based on the shape of the sheet-like part. The polygon may be another polygon such as a triangle or a quadrangle, but a triangle is preferable because a normal vector of a polygon surface can be uniquely set for one polygon. Here, the normal vector usually means a vector having a direction outward and perpendicular to the polygon surface and having a magnitude of 1. The definition in the case of being used in the present invention is as described above. The normal vector is used as a display parameter used for optically calculating and displaying a shadow of an object when a shape is three-dimensionally displayed on a display by CG (computer graphics). As a normal vector as a display parameter used in CG, usually, data obtained by calculating data perpendicular to a polygon surface from the polygon surface is used. The present inventors have noted that in the CG display, the normal vector does not necessarily need to be a vector perpendicular to the polygon surface, and can be set in any direction other than the vertical direction of the polygon. That is, in the optical calculation of the CG, the virtual normal vector set above is used.

Next, as a step 2, a normal line at the initial polygon node is calculated. The shape definition data is
Generally, it is defined by a set of numerical data of the coordinates of the nodes constituting the polygon, a set of polygon definition data composed of the numbers of the nodes constituting each polygon, and a set of normals at each node necessary for optical calculation in CG. You. Table 1 shows an example of this data configuration.

[0033]

[Table 1]

This is data representing a state where a sheet-like component composed of eight triangular elements as shown in FIG. 2 is arranged in a space. That is, the node coordinates are (x, y,
z), n1 is (0, 0, 0) and n2 is (1,
0,0), n3 is (2,0,0), n4 is (0,1,
0), n5 is (1,1,0), n6 is (2,1,0),
n7 is (0, 2, 0), n8 is (1, 2, 0), and n9 is (2, 2, 0). The polygon E1 is a node n1,
n5, n4, polygon E2 is n1, n2, n5, polygon E3 is n2, n3, n5, and polygon E4 is n5, n
3, n6, polygon E5 is n4, n5, n7, polygon E6 is n7, n5, n8, polygon E7 is n5, n9,
It is shown that n8 and polygon E8 are composed of n5, n6 and n9. See Figure 3 for normal data
In the case of a triangular polygon on the XY plane as described above, the normal vector N defined for each polygon can be obtained by equation 1 from the vectors a and b of the two sides forming the triangle.

N = (a × b) / | a × b | Expression 1 N: normal vector of polygon a, b: vector of two sides forming polygon where a × b is vector a, represents the cross product of b, a,
This is a vector in the direction perpendicular to b (the Z direction in FIG. 3).
| A × b | represents the norm (magnitude) of (a × b). Here, the normal obtained for each polygon is converted into a normal at a node surrounded by the polygon, and the normal is defined for each node. For this conversion, there is a method of defining the average value of the normals of each polygon surrounding the target node as the normal at the node. For example, in FIG.
Is the average of these normals (N (E1) + N (E2)) / | N (E1), where N (E1) and N (E2) are the normals of polygons E1 and E2 surrounding node n1. ) + N
(E2) |. Thus, the normal line data N1 to N9 in the case of FIG. 2 are all (0, 0, 1).

Next, in step 3, for the polygon model created in step 1, a line (adjustment line, that is, a unique shape area) such as a sewing line or a press line that is desired to be represented three-dimensionally is designated.

Here, a method of calculating shadows in CG will be briefly described. In CG, a method of determining the brightness of a surface from the relationship between a light source and the normal of the surface of a three-dimensional shape is called shading. With this method, the level of shading changes depending on the intensity, angle, and reflection of light, The feeling is expressed. A model that determines the brightness of one point on a surface from the orientation of the surface, the position of the viewpoint, and the material is called a shading model.
According to this model, the luminance L of a certain point on the object is expressed by the following equation (2).
As described above, the luminance is represented by the sum of luminance Ld due to diffuse reflection of incident light from a light source at an infinite point, luminance Ls due to regular reflection of incident light, and luminance La due to scattering of ambient environment light.

L = Ld + Ls + La Equation 2 L: Luminance of one point on the object Ld: Luminance by diffuse reflection of incident light Ls: Luminance by regular reflection of incident light La: Luminance by scattering of ambient environment light CG In the case of expressing polygons, a method of expressing light and shade by repeatedly filling the inside of the projected surface after obtaining the brightness of one point on each surface from the above-described luminance calculation method (constant shading) )
Also, there is a smooth shading method that expresses a curved surface approximated by a polygon so as to have a smooth gradation by interpolating the luminance within a polygon surface, but the latter application is preferable from the viewpoint of improving CG reality. . In the smooth shading, the brightness of each display vertex is determined by calculating the brightness of each vertex of the polygon and interpolating the brightness inside the polygon.

In the diffuse reflection shown in FIG. 4, the luminance Ld due to the diffuse reflection of the incident light on the surface is proportional to the cosine cos θ of the incident angle. The luminance due to the diffuse reflection of the incident light is expressed by Equation 3.

Ld = R · Lin · cos θ Equation 3 Ld: Luminance by Diffuse Reflection of Incident Light R: Diffuse Reflection Coefficient by Material of Target Object Lin: Luminance of Incident Light θ: Angle between N and Lin In the regular reflection, as shown in FIG.
Is assumed to be γ, the luminance due to regular reflection can be expressed by Expression 4.

Ls = Lin · ω · cos ⁿ γ Equation 4 Ls: Luminance due to specular reflection of incident light ω: Specular reflectance γ: Angle between line of sight and reflected light n: Value representing gloss (usually 1) -10) Further, assuming that the luminance of the ambient environment light is Lc and the diffuse reflection coefficient of the surface is R, the luminance of the scattered light can be expressed by Expression 5.

La = R · Lc Equation 5 La: Luminance due to scattering of ambient light Lc: Luminance of ambient light Here, Lc is usually considerably smaller than diffused light and reflected light due to incident light. The angle between the normal and the incident light or the reflected light determines the luminance. Therefore, the brightness can be adjusted by arbitrarily adjusting the angle of the normal line.

Therefore, in step 4, the direction of the normal line is intentionally adjusted for the node on the line which is the unique shape area designated in step 3. For example, in FIG.
The normal 10 of n1 to n3 is inclined at −45 degrees in the Y axis direction around the node on the YZ plane, and the normal 11 of n7 to n9 is inclined at 45 degrees in the Y axis direction around the node on the YZ plane. In this case, this plane model is subjected to the same shading as the model of FIG. 6 which is bent convexly at an angle of 90 degrees at the lines n4 to n6 on the display. In addition, in FIG. 2, when the normal is tilted outward with respect to the node at the end of the plane, a shadow 12 is cast on the end polygon as shown in FIG. Can be provided. By adjusting the angle of the normal,
Any adjustment is possible, such as making it look thin or thick,
By setting the angle according to the material, it is possible to enhance the texture of the material. The greater the angle of tilt, the darker the edges and the thicker they look. As described above, the display processing in the unique shape area is performed based on a different rule from the display processing in the general shape area.

In the above method, the normal line adjustment is performed only on the end nodes, so that the shading can be adjusted only by the end polygons. Therefore, the sense of thickness depends on the fineness of the peripheral polygons, and even if the same normal angle is set, in the case of the rough polygon model 13 as shown in FIG. In the case of 15, the width of the shadow 16 becomes small.

It is desirable to use fine polygons in order to give a realistic feeling of shape display. However, if the polygons are extremely fine, the shadow of the peripheral part becomes thin, making it difficult to distinguish on the display. Not only the normal 21 of the node 25 at the peripheral portion of the polygon model 20 but also the normal 22 of the node inside the polygon model 20 smoothly changes to the normal 24 inside the surface at an arbitrary interval 23 from the peripheral portion. Set to

As a case where a state in which a plurality of sheet-like articles such as cloths are joined by sewing or the like at end lines is three-dimensionally displayed, two sheet-like article models 30, 31 as shown in FIG. Are connected on the connection line 34. However, in this connection, polygons that are in contact with the connection line do not share a node across the line. In this case,
On the connection line, a node 35 included in the sheet-shaped article model 30 and a node 36 included in the sheet-shaped article model 31
Are located on the same coordinates, but need not necessarily be located on the same coordinates as in FIG.

A method of three-dimensionally displaying the connection line 34 in the sheet will be described with reference to the sheet-like article models 30 and 31 shown in FIG. FIG. 12 is a schematic diagram illustrating a method of displaying a three-dimensional display of the connection line 34. In this case, the respective normal lines 37 and 38 on the edge lines 32 and 33 of both sheets joined at the joining line 34 are shown in FIG.
As shown in FIG.
By inclining in the range of 90 degrees, a concave three-dimensional line 39 as shown in FIG. 12B can be displayed. Conversely, FIG.
By tilting the normal line inward in the range of 0 to 90 degrees as shown in FIG. 2C, a convex solid line 40 as shown in FIG. 12D can be displayed. The former method is suitable for expressing a three-dimensional line (hereinafter referred to as a sewing line) appearing on a sewing portion of a cloth, and the latter method is suitable for expressing a convex fold such as a press line of pants. Also in this case, since the width of the three-dimensional line depends on the fineness of the polygon, if the polygon is fine, the normals of the nodes on the connecting line will be smooth for the nodes between the connecting line and any distance inside it. It is preferable to set the normal so that it changes to the internal normal.

The above-described method is applied to the case where the sheet-like article models 30 and 31 having a plurality of closed regions as shown in FIG. This method is related to a method of intentionally displaying a connection line 34 set on a component discontinuously on the periphery by performing normal adjustment on the lines 32 and 33 (nodes on the lines). The present method is also applicable to a case where a discontinuity of an arbitrary line 42 in a region is displayed, such as a fold existing inside one region 41 as shown in FIG.

When an arbitrary line 51 is set in the target polygon model 50 as shown in FIG.
In order to define the discontinuity of a line by normal adjustment, it is necessary to set a normal in a different direction along this line. However, since a normal is originally provided for each node, on a line inside the area, the node has only one normal in one direction. Therefore, in order to define the discontinuity of a line according to the present invention, a method of setting a plurality of normals for one node is required. Two methods will be described.

First, the first method is a method of modifying the model itself so that the model is divided at an arbitrary line 51. That is, a new node 53 is generated at the same coordinates as the node 52 on the line 51 as shown in FIG.
Using this node 52, the model is reconstructed so that polygons touching on the line do not share the line. Thereby, the shape model is remodeled into the polygon model 54 cut by the line, and the setting and display of the discontinuous line by the normal line adjustment of the present invention become possible.

Next, a second method is to set a plurality of normals 55 and 56 at one node 52 as shown in FIG. Here, for the nodes on the line, multiple normals corresponding to the polygons that make up the nodes are set, and for the polygons that are in contact with the line, for the nodes on the line,
The brightness interpolation inside the polygon is performed using a different normal for each polygon. According to this method, the number of normals to be set is plural for each node, so that the data amount is large, but there is an advantage that versatility is high.

As described above, based on the normal data changed by the normal adjustment method in step 4, as step 5, the initial normal data set in step 2 is rewritten, thereby updating the initial polygon shape data. ,save.

Hereinafter, an example in which the present invention is applied to an easy order of women's clothing using cloth as a sheet will be described.

FIG. 15 is a block diagram illustrating the configuration of an apparatus according to an embodiment of the present invention. This apparatus comprises a personal computer 101, a keyboard 102, a mouse 10
3, a display 104, a printer 105, and a hard disk device 106. In addition to the mouse 103, a pointing device such as a touch pen or a touch panel can be used.

The hard disk device 106 has an article model information storage means 107, an article image information storage means 108,
Article attribute information storage means 109, part two-dimensional shape information storage means 110, material information storage means 111, human body model information storage means 112, knowledge storage means 11 for clothing order
Third, a part information storage unit 114 is included. Other volatile or non-volatile memory may be used in place of the hard disk device. In the present embodiment, these storage means are realized using a general-purpose relational database.

The article model information storage means 107 stores a clothing shape model in which the clothing state is calculated in advance by a mechanical calculation for each of the clothing design and the material applicable to the clothing, a shape model of the individual specification part of the clothing, and the like. In addition, a clothing design code and a material code corresponding to the shape model are stored. The shape model of the clothes is an initial shape obtained by assembling the two-dimensional shape of the parts of the clothes stored in the part two-dimensional shape information storage means 110 into a three-dimensional shape on a computer, and the physical properties of the material and the shape data of the standard body shape The one calculated mechanically using was used. A method of assembling a two-dimensional shape of clothing parts into a three-dimensional shape on a computer is disclosed in Japanese Patent No. 1984093 by the present applicant, the method disclosed in Japanese Patent Application Laid-Open No. H10-124538 by the present applicant, and the present application. The method of Japanese Patent Application No. 10-84064 can be used. These methods prepare a pattern model defined by a collection of minute polygonal elements based on the shape of the pattern, which is a part for making clothes (hereinafter this pattern model is called a pattern), and are joined. Calculates the state of clothing by solving the equation of motion of the clothing model taking into account the forces acting on the template and the interference with the human model inside while applying attractive force or forced displacement to the joints between the required patterns Things. A case where a plurality of outerwear is layered is described in Japanese Patent Application Laid-Open No.
No. 4095 can be used. In this method, feature points are set between the human body model and the clothing model, and the dressing calculation is performed while giving the force to maintain the positional relationship between the two. Will be possible. FIG. 16 shows an example of a clothing shape model. 16 (a) and 16 (b) show the same clothing design, respectively. FIG. 16 (a) is a shape model when a hard material is applied, and FIG. 16 (b) is a shape model when a soft material is applied. It is a shape model. If you use a soft material,
It turns out that drape is generated finely. Individual parts of clothing are parts that can be changed in the design of the clothing, such as notched lapel, peaked collar, etc.
For designs that can be selected from Lapel, Cloverleaf Lapel, each of these collars is a custom part.
Several shape variations are prepared so that the shape data of the individual specification part can be combined with the clothing shape model or can be changed to the individual specification part in the clothing shape model. Each shape variation is created by dressing calculation so that it can be combined with the shape model of the clothes calculated by dressing with the standard body shape.

The article image information storage means 108 stores the image of the article, the design code of the clothes in the image, and the material code of the clothes in the image. As the image of the article, in the present embodiment, an image obtained by photographing a state in which the fashion model wears clothes is used. However, the image of the material is formed by CG (computer graphics) on the shape model of the clothes created by the dressing calculation. May be used. With respect to the articles in the article image, the shape models of the corresponding articles are stored in the article model information storage means 107, and they are associated with each other by the design codes of the clothes.

The article attribute information storage means 109 stores clothing attribute information for each clothing design. As the attribute information of the clothes, in the present embodiment, the design code of the clothes, the type of the clothes (jacket, dress, skirt,
Pants, etc.), year and season are stored.

The part two-dimensional shape information storage means 110 includes:
Stored are two-dimensional shape data of clothing parts created based on the data of the pattern CAD, and joining information (which parts are sewn and which parts are to be sewn) representing the information of joining the parts. As shown in FIG. 17, the two-dimensional shape data of the clothing parts is divided into polygonal meshes so that drapes and silhouettes can be reproduced when dressing calculation is performed. A part code is attached to each garment part so that it is possible to identify the part. For example, the first digit of the component code is the left and right, the second digit is the front and rear, the third digit is the type of the component, the fourth digit and subsequent numbers are serial numbers, and RFM01 is the first right front body 301, LF
M01 is the first left front look 302, RFM02 is the second right front look 303, and LBM01 is the first left back look 3
04, and so on. Each component has a cloth section ID as an attribute, and the same cloth section ID number is stored in a part using the same cloth. This makes it possible to create uv mapping data for each piece of cloth even in the case of clothes composed of a plurality of types of cloth. In addition, each fabric classification ID
The types of dough that can be used are also registered. For example,
When creating a certain garment, it can be detected from these information that the combination of the cloth B, the cloth D and the cloth N is possible.

The material information storage means 111 stores a material image used for clothes, attribute information of the material, and CG synthesis information for synthesizing the material image with the three-dimensional clothes model. In this embodiment, a color image captured by an image scanner or a digital camera is processed as necessary so that color patterns are continuously connected when texture mapping is performed. As a processing method for connecting colors and patterns continuously when texture mapping is performed, Japanese Patent Application No. 9-2786 filed by the present applicant is available.
The method of specification 79 can be used. As the attribute information of the material, in this embodiment, the material code, the year, the season,
The description of the color, pattern, quality (100% wool, 70% cotton, 30% hemp, etc.) and the description of the material are stored. In this embodiment, the reflectance and the diffusion coefficient are stored as the information for CG synthesis.

The human body model information storage means 112 includes a human body model of a standard body type and information for deforming an object.
FIG. 18 shows an example of a standard human body model. In this embodiment, a three-dimensional shape data created by measuring a standard mannequin with a three-dimensional measuring device is used as the standard human body model. The object deformation information is information necessary for deforming the three-dimensional shape data of the standard human body or the three-dimensional shape data of the standard clothing according to the customer's physical shape. In this embodiment, the shapes of the human body and the clothes are deformed using a control body composed of a set of characteristic points of the human body as shown in FIG. FIGS. 19A and 19B are examples of a control body used for deforming the shape of a human body and pants. FIGS. 19C and 19D show examples of control bodies used for shape deformation of clothes (dresses, skirts, jackets, etc.) other than pants. FIGS. 19 (a) and (c)
Is a control body corresponding to the standard body type.
And (d) is a control body corresponding to a short and thick body. When transforming the shape model of the standard human body and clothing into a short and thick body, the difference between the shape of the control body of the standard body and the shape of the control body corresponding to the short and thick body is considered. Approximately deform the shape models of the human body and clothing. As the object deformation information, in addition to the control body, for example, when a bust, a waist, a hip, and a height are input as deformation parameters, how much the feature points of the human body constituting the control body should be moved Numerical values and functions representing the numbers are stored. For information on object deformation, refer to Japanese Patent Application No. 9-3358 filed by the present applicant.
No. 71 describes it in detail.

[0062] The knowledge storage means 113 stores the knowledge about the order of combining clothes. FIG. 20 shows a part of an example of the knowledge storage unit 113 relating to the clothing order. In this example, it is shown that the smaller the numerical value of the clothes order is, the more the inside is. For example, when a jacket and a skirt are combined, the skirt must be inside the jacket, so the numerical value of the skirt's clothing order is smaller than that of the jacket's clothing order. The knowledge storage means 113 relating to the clothing order is described in detail in Japanese Patent Application No. 9-292373 by the present applicant.

The part information storage means 114 stores information on clothes pattern. In this embodiment, the pattern CAD data of each garment is stored as part information.
The pattern CAD data used in the present embodiment includes numerical information representing the shape of the clothing part, information representing the warp direction of each part, and joining information of the parts (for example, points or lines of a part to be joined). Number information or a mark indicating a point to be joined, which is written on the cloth when assembling the garment in consideration of the expansion and contraction of the cloth. If the joining information is not included in the pattern CAD data, it may be added later.

Next, various functions provided by the personal computer 101, specifically, the central processing unit and the general-purpose volatile memory will be described.

The personal computer 101 has an article model selection support means 115, an object shape deformation means 116,
Article individual specification part selection support means 117, material selection support means 118, material color / pattern setting means 119, color / pattern setting image display means 120, color / pattern setting image printing means 121, part two-dimensional shape creating means 122, article model information creation Means 123,
And a data registration unit 124. The component two-dimensional shape creation unit 122 includes a mesh creation unit 125 and a two-dimensional shape uv adjustment unit 126.

The article model information creating means 123 includes an article three-dimensional shape creating means 127, a three-dimensional line information creating means 1
28, a thickness information creating means 129 is included.

The article model selection support means 115 has a function of retrieving an image of an article (clothes) from the article attribute information storage means 109 by a keyword search, and displays a plurality of images of the searched articles on a screen. There is a function to help customers select their favorite clothing designs. When the customer selects a favorite clothing design, a shape model of the clothing is searched from the article model information storage means 107. Then, the shape model of the selected clothes is added to the shape model of the clothes being displayed (including the human body model).
When a clothing shape model is selected for the first time (when there is no clothing shape model being displayed), a human body model is retrieved from the human body model information storage unit 112 and added to the selected clothing shape model. When adding the shape model of the clothes, using the clothes order stored in the knowledge storage means 113 regarding the clothes order, if the shape model that is supposed to be inside is outside, the shape data is corrected to be inside. I do.
The method of adding the above model is described in detail in Japanese Patent Application No. 9-292373 filed by the present applicant.

The article shape deforming means 116 has a function of deforming a human body model or a clothing shape model according to the customer's body shape. The deformation of the shape model is performed as follows. First, a body shape change screen as shown in FIG. 21 is displayed on the display 104, and the clerk operates the keyboard 102 and the mouse 10
Use 3 to enter the body type information of the customer. In the present embodiment example, nine types of body type classification (high thick (thick high), high (high), high thin (narrow high), thick (thick), standard, thin (thin), A method of selecting an object close to the customer's body from low thick (thin), low (low), low thin (small), and numerical values of deformation parameters (height, bust, waist, hip in this embodiment) There is a way to enter. Regarding the former, refer to Japanese Patent Application No. 9-1 filed by the present applicant.
No. 185 is described in detail. When the body type information is input, the object deformation information is extracted from the human body model information storage unit 112, and the human body model and the shape model of the clothes are approximately deformed in accordance with the body shape information based on the extracted deformation information. . As a result, the quality of the coordination according to the customer's body type can be confirmed on a computer (display). In addition, since the shape of the clothing calculated using the standard human body model and the standard human body model is transformed to reflect the customer's body shape, the human body model is deformed according to the customer's body shape, and then the customer's body model is transformed. Compared to creating a personal pattern (parts data) according to the body shape of the customer and then using the individual parts data to dress and calculate to reflect the customer's body shape, the customer's body shape was reflected in a much shorter time. A shape model of clothes can be created. A method of transforming a human body model and a shape model of clothes is disclosed in Japanese Patent Application No. Hei.
No. 3,358,871.

The article individual specification component selection support means 117 has a function of assisting a customer in selecting individual specification components applicable to an article. For example, if the customer designates the change of the collar, the shape model of the corresponding individual component is searched from the article model information storage means 107, and a two-dimensional image of the individual component is created by the rendering process.
Display a list on the screen. The customer can use the mouse 103 to select a desired individual specification part from the list of individual specification parts. When the individual specification part is selected, a shape model in which the corresponding individual specification part of the clothing shape model selected by the article model selection support means 115 is changed to a newly selected individual specification part is created.

The material selection support means 118 has a function of retrieving an image of a material applicable to an article from the material information storage means 111, displaying a plurality of images on a screen, and supporting a customer in selecting a material. is there. From the images of the materials listed on the screen, specify the image of the desired material using the mouse 103. Based on the design code of the previously selected clothes and the material code of the newly selected material, Then, the clothing shape model calculated using the material selected by the customer is retrieved from the article model information storage means 107, and replaced with the previously selected clothing shape model. Thus, when the material is changed, the drape property and silhouette of the clothes can be reflected. In the example of this embodiment, the shape model of the clothes, which has been calculated using the physical properties of each material, is stored in advance in the article model information storage means 107. For example, each time a material is selected, The dressing calculation may be performed using physical properties. However, since the dressing calculation often takes time, it is desirable to use a shape model that has been subjected to the dressing calculation in advance as in the present embodiment.

The material color / pattern setting means 119 uses the clothing shape model, the clothing two-dimensional shape data, and the material image to synthesize the clothing shape model with the material image and shades the two-dimensional image. (Hereinafter referred to as a color pattern setting image). The two-dimensional shape data of the clothing is obtained when texture mapping of the material image to the clothing shape model is performed.
Used as v data. At this time, a two-dimensional image is created by synthesizing the skin image not only with the clothing shape model but also with the human body model. As a technique of combining a material image (including a skin image) with a shape model and shading, a texture mapping technique and a rendering technique, which are general CG techniques, are used.

The color / pattern setting image display means 120 has a function of displaying the color / pattern setting image created by the material color / pattern setting means 119 on the display 104. When the rotation of the image is designated with the mouse 103, the color pattern setting image when the shape model is minutely rotated is sequentially created by the material color pattern setting means 119 and sequentially displayed on the display 104, thereby rotating the shape model of the clothes. The viewing direction can be freely set.

The color / pattern setting image printing means 121 sends the color / pattern setting image being displayed on the display 104 to the printer 105.
There is a function to output.

The component two-dimensional shape creating means 122 creates two-dimensional shape data to be used as uv mapping data by the material color / pattern setting means 119 based on the pattern CAD data stored in the part information storage means 114. . This 2
The dimensional shape data is also used for dress calculation. The part two-dimensional shape creating means 122 is described in detail in the specification of Japanese Patent Application No. 10-113013 by the present applicant.

The article three-dimensional shape creation means 127 has a function of creating a three-dimensional shape model of an article by dressing calculation based on the two-dimensional shape data stored in the component two-dimensional shape creation means 122. Article three-dimensional shape creation means 127
Is described in Japanese Patent Application Laid-Open No. H10-134095 by the present applicant.
The details are described in the specification, Japanese Patent Application No. 8-285408 by the present applicant, and Japanese Patent Application No. 10-59879 by the present applicant. 3D line information creation means 12
8. The thickness information creating means 129 will be described later.

The data registration means 124 includes two-dimensional shape data created by the component two-dimensional shape creation means 122, a three-dimensional shape model created by the article model information creation means 123, articles, materials, and human body models. Is stored in each storage unit included in the hard disk device 106.

Next, an outline of the operation of this embodiment will be described. In this embodiment, there are a data registration mode for registering data and a coordination mode to be used at a store when serving customers. First, the data registration mode will be described.
In this embodiment, one personal computer 101 has both functions of the data registration mode and the coordination mode, but may be realized by individual computers. In this case, for example, data registered by the data registration mode dedicated computer may be copied to the coordinate mode dedicated computer for use.

The data registration mode will be described with reference to the flowchart of FIG.

At step 701, the keyboard 10
The data registration unit 124 stores data relating to articles and materials prepared in advance using the mouse 2 and the mouse 103 in each storage unit included in the hard disk device 106. The part 2D shape information and the article model information of the article
Since it is created after step 702, it is not registered here. By the data registration unit 124, the correspondence information between the clothes and the materials is stored in the article model information storage unit 107, the sample image information of the clothes is stored in the article image information storage unit 108, and the attribute information of the clothes is stored in the article attribute information storage unit 109.
The information of the material is stored in the material information storage means 111, and the human body model information is stored in the human body model information storage means 11
2, the information on the clothing order is stored in the knowledge storage unit 113 on the clothing order, and the pattern CAD data is stored in the parts information storage unit 114. The pattern CAD data includes pattern data of the pattern and joining information (which part of the pattern and which part is sewn at which part). Information on replaceable individual specification parts is also included in the pattern CAD data.

In step 702, the mesh creation means 125 extracts the part information stored in the part information storage means, performs necessary pre-processing in the article model information creation means 123, and calculates mesh data (e.g. The data is converted into a collection of polygonal microelements (in this embodiment, triangular elements are used). In addition, assembling information necessary for assembling the two-dimensional shape data into a three-dimensional shape at the time of dressing calculation is created based on the joining information included in the part information. Necessary pre-processing means, for example, that a sewing margin is attached to each part in the pattern CAD data, and that the part is deleted. In the pattern CAD data, a symmetrical part (corresponding to a cloth piece) is either left or right data. In some cases, the operation of restoring the omitted data is included. For example, pattern data as shown in FIG. 23A is converted by the mesh creating means 125 into mesh data as shown in FIG. In FIG. 23, reference numeral 801 denotes joining information.

The two-dimensional shape uv adjusting means 126
In step 703, the position of each component in the u-axis and v-axis directions is adjusted based on the type of the component. FIG.
This is an illustration of the adjustment of the direction. (A) is a state before adjustment, and (b) is a state after adjustment. By this adjustment, the pattern in the vertical direction and the pattern in the horizontal direction are continuously connected like actual clothes.

FIG. 25 shows a state in which the mesh data of the part is omitted (only the outline of the part is drawn) and the pattern of the cloth is mapped to the three-dimensional shape data. If the position adjustment is not performed and the texture mapping of the material is performed using the two-dimensional shape data as the uv mapping data, FIG.
Although the problem that the patterns are not connected continuously occurs as shown in FIG. 25A, by performing the position adjustment, the patterns are continuously connected like actual clothes as shown in FIG. 25B. For details of this method, refer to Japanese Patent Application No.
This is described in detail in the specification of Japanese Patent Application No. 0-113013.

In step 704, step 702
-The part 2D shape information created in step 703 is
The data is stored in the component two-dimensional shape information storage unit 110 by the data registration unit 124.

Next, in step 705, the article model information creating means 123 creates a three-dimensional shape model of the garment by dressing calculation. To create the three-dimensional shape model of the clothes, the two-dimensional shape of the clothes stored in the part two-dimensional shape information storage means 110 and the article model information storage means 10
The correspondence information between the clothes and the cloth stored in 7, the physical properties of the cloth stored in the material information storage unit 111, and the human body shape data stored in the human body model information storage unit 112 are used. Note that this step 705 may be performed immediately after the mesh data is created in step 702.

[0086] The three-dimensional shape data of the garment created here is the three-dimensional data of the garment or the garment corresponding to the registered design.
It represents a surface shape of a dimensional component, for example, a jacket, pants, and the like.

The three-dimensional garment shape includes a method of expressing the shape of the garment by a three-dimensional free-form surface, a method of representing a set of a plurality of points in a space representing the position of the garment, and the like. A method is used in which a free-form surface representing a shape is defined by a set of a plurality of minute triangular or quadrilateral elements called polygons. In this case, the three-dimensional shape data of the garment is composed of the arrangement of the node numbers constituting the polygon, the position coordinates of the nodes, and the normal vectors at the nodes required for display by CG.

For the preparation of the three-dimensional shape data of the clothes, there is a method of actually measuring the shape of the clothes in a clothes state using a three-dimensional scanner for measuring the spatial coordinates of the surface and converting the data into polygons, in addition to the calculation of the clothes. A three-dimensional scanner uses a pen-type sensor that presses against an object to measure the spatial coordinates of the surface, and a three-dimensional scanner that irradiates the object with a light streak and analyzes the undulations of light rays traveling on the surface. There is a non-contact type that uses interference fringes to be converted into data or a type that scans with a laser. The latter non-contact type scanner is suitable for scanning a flexible object such as clothes.

In the dressing calculation, based on the human body model data stored in the human body model information storage means as the standard body shape of a mannequin or the actual body shape of the customer, based on the pattern data stored in the article two-dimensional information storage means. The three-dimensional clothing shape is calculated in consideration of the physical properties of the fabric stored in the material information storage means.

In the dressing calculation, first, pattern information (for the sake of convenience in the present specification, even when fabric parts are directly produced without actually creating a pattern, synonymous with “part information”). It is extracted from the component two-dimensional shape information storage means 110. The pattern information is an attribute, a shape, sewing information, and the like of the pattern (part). The attribute information of the pattern is a design, an item, and a part (a body, a collar, a sleeve, a pocket, etc.) to which the pattern belongs, the shape information is an outline of the pattern developed on a plane, and the sewing information is , Pairing information of a sewing site such as a sewing line and a dot set between a plurality of patterns. Next, the material to be used is selected from the material information storage unit 111 for each pattern, and physical characteristic parameters of the material such as the flexural modulus, thickness, and density corresponding to the selected material are extracted. Next, a body shape to be used is selected and extracted from the human body model information storage unit 112. As the body shape data, a standard body shape such as a mannequin may be used, or the body shape of the customer may be actually measured with a three-dimensional scanner, and the body shape created from this data may be used. As described above, based on the selected pattern, fabric, and body shape, the clothing of the selected design is tailored with the selected fabric, and the three-dimensional clothing shape of the clothing when it is dressed on the selected body shape is calculated. As a method of calculating a three-dimensional clothing shape after clothing from a pattern, Japanese Patent Application Laid-Open No.
And Japanese Patent Application Laid-Open No. 10-134095. That is, the former is a clothing pattern 40 as shown in FIG.
By inputting the shape and material properties of 1 (parts) and the binding information 402 of the pattern (parts), a simulation experiment using a computer in consideration of the physical characteristics of the pattern (parts) was performed as shown in FIG.
The invention relates to a method for obtaining a shape 403 after assembling a pattern (parts) as shown in FIG.
Based on the physical characteristics of the cloth to be actually used and the shape of the human body wearing the clothes, a simulated experiment of the clothes form of the clothes sewn based on the pattern (parts) was performed by a computer, and as shown in FIG. This is an invention related to a method of simultaneously displaying a clothing shape 404 and a body type 405.

As an actual example of the dressing calculation, the pattern 40 shown in FIG.
6. FIG. 31 shows the clothing three-dimensional clothing shape 408 of the jacket calculated from the body shape 407 of FIG.

In the case of outerwear, the three-dimensional clothing shape data created at this time includes a three-dimensional body part model 411, a collar part model 412, a right sleeve part model 413, and a left sleeve part as shown in FIG. It is preferable to disassemble and store the model 414 into three-dimensional attachment parts such as pockets. According to this method, for the same appearance, three-dimensional accessory parts such as replaceable sleeves, collars, pockets, etc. are separately calculated and prepared by the dressing calculator, and as shown in FIG. Replacement collar part model 415 for sleeves,
Partial changes such as replacement with the replacement sleeve part model 416 are possible. In addition, hem length, sleeve length,
For changing the design, such as changing the depth of the U-zone and V-zone of the body chest, as shown in FIG. 34, for changing the design of the hem-length control point 421, sleeve-length control point 422, and chest control point 423. Set control points.

As described above, the three-dimensional parts created by the dressing calculation include a set of parts such as a collar and a sleeve and a plurality of collars and sleeves applicable to the design in addition to a body part serving as a base as a basic design. Are registered in the article model information storage means as three-dimensional clothing shape data.

In the method using the clothing calculation device, since the three-dimensional clothing shape and the pattern correspond one-to-one, when a partial change is made to the three-dimensional clothing shape, the change is directly transmitted to the pattern ( Parts) data can be reflected. Above 3
The three-dimensional clothing shape is created in advance by the dressing calculation device for the assumed design and stored in a database. A method of performing the dressing calculation on the spot based on the desired design and fabric may be used.

According to the method using this dressing calculation device, 3
It is possible to change the design dimensionally. For example, when changing the design of the skirt of the skirt, it is also possible to make a left-right or front-rear asymmetrical design modification, for example, by extending only the left side without extending the right side hem. In addition to exchanging parts such as pockets, the positions of those parts can be three-dimensionally changed. In these changes, the point representing the three-dimensional clothing shape and the point representing the pattern shape correspond one-to-one, so that the result of the change can be directly reflected on the pattern.

In addition, by performing a three-dimensional dressing calculation, there is an advantage that various combinations of tops and bottoms can be tried, and a situation in which a jacket is overlaid on a dress shirt can be reproduced on a computer. .

It is also possible to perform a dressing calculation with various poses on the human body, and to perform a dynamic dressing calculation, for example, to blow the wind or to observe the movement of clothes when the human body model walks. . This makes it possible to visually grasp the texture of the cloth.

Further, there is an advantage that the result of the design change can be confirmed three-dimensionally from various angles, and that the human body and clothes can be visually confirmed at an arbitrary cross section.

In the above example, the three-dimensional garment shape is created in advance by a dressing calculation device for an assumed design and stored in a hard disk device. May be measured by a three-dimensional scanner or the like, and a dressing calculation may be performed on the spot based on the customer's favorite design and fabric. in this case,
Detailed design modifications, such as adjusting the hem length, sleeve length, and pocket position to suit the customer, can be performed on the computer screen without making actual clothes. When the calculation speed of the dressing calculation device is low, the dressing calculation is preferably performed in advance, as in the above example. When the calculation speed is high, the dressing calculation is preferably performed after selecting the design and the material (cloth).

In the dressing calculation, the physical characteristic value (KES) specific to the material (fabric) used in the design as described above.
In addition to performing calculations using, the material (cloth) is classified in advance with rough representative characteristics such as soft, hard, and medium, and representative material physical property values are set for each representative characteristic. There is a method of calculating using this. By using this method, the number of calculations is reduced as compared with the case where the dressing calculation is performed on all the materials. Also, in the measurement of the physical characteristic value of the material, it is possible to reduce the number of measurements by selecting a material having typical characteristics in advance and performing only the measurement on the material.

As described above, the three-dimensional shape model of the clothes created by the article model information creating means 123 is defined as an aggregate of one or more pieces of three-dimensional cloth piece data constituting the three-dimensional shape of the clothes. Here, the three-dimensional cloth piece is a cloth (corresponding to a two-dimensional paper pattern part) cut into the shape of a paper pattern and transformed into a three-dimensional shape by a dressing calculation. In other words, it can be said that the three-dimensional cloth piece model is obtained by cutting out regions corresponding to the respective two-dimensional paper pattern components from the three-dimensional clothing shape model obtained as a result of the dressing calculation as shown in FIG. FIG. 36 shows an example of a data structure of a three-dimensional cloth piece in the three-dimensional clothing shape model.

Normally, in the dressing calculation, the detailed shape of the peculiar shape area such as the sewing line portion of the three-dimensional cloth piece is not considered because it does not greatly affect the result of the dressing calculation, and is not considered in the shape model. Like a region, it is often modeled as a flat and smooth curved surface. That is, the shape of the shape model is often simpler than that of the actual part. For this reason, the change in the normal direction in the sewing line is different from the actual fabric, and is often continuous. That is, when shadow processing is performed on a three-dimensional shape model by CG, FIG.
As shown in (a), the surface including the sewing line is displayed on the display as a smooth curved surface, and the sewing line cannot be determined. Even if the normal lines are joined so as to be discontinuous in the sewing line, a sharp concave line seen at an actual sewing position cannot be expressed.

Therefore, in displaying by CG, the normal line adjustment of the present invention is applied to the nodes on the line in order to display the sewing line effectively.

Steps 706 to 707 are for explaining the operation of the part three-dimensional line information creating means (display data creating means in the shape model) necessary for displaying the sewing line.

At step 706, a three-dimensional sewing line is set for the three-dimensional shape model created by the dressing calculation by the article model information creating means. The sewing line is defined by nodes on the line. Selection of sewing line,
Examples of the input method include direct key input of a node number by a keyboard, selection of a node on a display by a mouse, and the like.In the present embodiment, based on sewing information used for dressing calculation, a node on a sewing line is determined. Automatically extracted.

In step 707, normal adjustment for setting three-dimensional sewing line information is performed for the sewing nodes,
The normal data at the sewing nodes of the three-dimensional shape model is replaced with the adjusted sewing data. In this embodiment, the absolute value of the normal adjustment angle is set to 45 degrees. FIG. 37B shows a CG display after shading processing of the three-dimensional shape model when sewing line information is set. The normal data at the sewing nodes of the three-dimensional shape model is replaced with the adjusted sewing data and stored.

Although the method of setting the sewing line information has been described above, the present method is also applicable to the display of cuts intentionally made on clothes such as slits and benz of clothes. For example, in the Mercedes-Benz portion of the jacket, FIG.
As shown in FIG. 38C, the two cloth pieces 501 and 502 sewn at P1 and P2 as shown in FIG.
In part 3, the dough is in a state of being vertically overlapped.
In order to express Benz by shading setting by normal adjustment for a three-dimensional model in which two pieces of cloth are sewn in this way, for example, as shown in FIG. The node normal N (501) of the end portion of the cloth piece 502 is inclined 45 degrees toward the cloth piece 501 (inward),
When the normal adjustment is performed by inclining (502) by 90 degrees toward the cloth piece 501, the end of the cloth piece 501 warps outward as shown in FIG. 38C, and the end of the cloth piece 502 is positioned below the cloth piece 501. Is displayed as a shadow. In the case of a slit, by inclining the normal line of the node on the line by 90 degrees toward the outside of the cloth piece, the line becomes a shadow at the time of display, and it is possible to express a cut.

Steps 708 to 709 are for explaining the operation of the component thickness information creating means (display data creating means in the shape model). Usually, a three-dimensional shape model is
Since it is composed of polygons having no thickness, it is not possible to express a sense of thickness when the clothes are three-dimensionally displayed by CG. However, real clothing has, for example, a thick material for a coat, a thin material for a blouse, and a thickness corresponding to the material used. The sense of thickness is 3 shown in FIG.
It is necessary to give a thickness to a line at the end of the garment which is free without being sewn, such as a collar end, a cuff, and a hem end of the dimensional model (hereinafter, referred to as a free edge line). As a method of giving a thickness, a method of blocking a polygon of a free edge line as shown in FIG.
As shown in (b), a method of setting up a rib with a polygon in the thickness direction on the free edge line can be considered. In the present embodiment, the display is performed by adjusting the normal line of the node on the free edge line. A method of giving a sense of thickness by the effect of the generated shadow is used.

At step 708, a free edge line is set for the three-dimensional model. The setting of the free edge line includes a method of directly inputting a node number on the free edge line with a keyboard, a method of selecting a free edge line with a mouse for a three-dimensional model displayed on the display, and the like. In this embodiment, a method of automatically detecting a free edge line from a three-dimensional model is used.

The automatic detection method will be described below.
The clothes three-dimensional model is defined as an aggregate of cloth piece models as described above. In this method, first, a free edge line of three-dimensional cloth piece data is detected. Here, since the detected free edge line includes the sewing line, the sewing line (the line to which the sewing information is given) is deleted from the free edge line. The line remaining after this deletion becomes a free edge line to be set. The detection of the free edge of the three-dimensional cloth piece model may be performed by checking whether or not the sides of each polygon constituting the three-dimensional cloth piece model are shared by a plurality of polygons. The side L2 in FIG.
Since it is shared by a plurality of polygons E1 and E2, it is not a free edge line but a side inside the cloth piece, and the side L
1 is a free edge line because it belongs to only one polygon E1.

In this embodiment, since the normal is the data given to the node, the node group forming the side serving as the free edge is detected as the free edge line.

In step 709, normal adjustment is performed on the nodes set as free edge lines. In the present embodiment, the adjustment amount of the normal angle is set to 80 degrees in order to increase the thickness of the free edge line when displaying. FIG. 42 shows a CG display of the three-dimensional shape model after the shading processing when the free edge line information is set.

In step 710, the three-dimensional shape model of the garment created by the article model information creation means 123 is stored in the article model information storage means 107 by the data registration means 124.

The data registration mode for registering data has been described above.

Next, the coordinate mode will be described with reference to the flowchart in FIG.

In step 1301, an operator (a clerk of a store or a customer) operates the keyboard 102 and the mouse 103 to select a desired clothing design using the article model selection support means 115. Further, when a plurality of clothes are combined (for example, a jacket and a skirt), the design of the clothes to be combined may be added by repeatedly using the article model selection support means 115. Since a plurality of clothes can be freely combined, the customer can check the quality of the coordination of the upper and lower designs such as the combination of the jacket and the skirt.

In step 1302, the user can select a changeable individual specification part from the individual specification parts of the clothes selected in step 1301 using the article individual specification part selection support means 117 according to the customer's preference. Create a shape model with the changed.

In step 1303, the material to be applied to each of the clothes selected in step 1301 is selected by using the material selection support means 118. When the operator uses the mouse 10
When a material is selected by using 3 or the like, the material selection support means 1
18 retrieves the shape model of the clothes when the material selected by the operator is used from the article model information storage means 107 and replaces it with the shape model of the clothes before selecting the material, so that only the color and pattern when the material is changed Not only that, but also the shape of the clothes (silhouette and drape) can be confirmed by the customer. Note that step 1303 is performed before step 1302.
May be implemented.

In step 1304, the shape model and the human body model of the clothes are deformed by using the article shape deforming means 116 so as to match the body shape of the customer. by this,
It is possible to check whether the coordination according to the customer's body is good or not, and whether or not it suits the customer. Furthermore, since the shape of the clothing when the body shape changes is approximately calculated as described later, the human body model is deformed according to the customer's body shape, a personal paper pattern is created, and compared to calculating the dressing, It is possible to change the shape of the clothes according to the customer's body shape in a much shorter time. Step 1302 or Step 1
Step 1304 may be performed before step 303. When the shape model of the clothes is deformed, a problem occurs that the pattern is deformed in accordance with the deformation of the clothes. This problem becomes more conspicuous as the amount of deformation increases, but this problem can be solved by using the method described in Japanese Patent Application No. 10-102907 by the present applicant. In this method, by changing the two-dimensional shape data of the clothing part used as the uv data of the texture mapping according to the deformation amount of the clothing shape model, the pattern is not deformed even if the clothing shape is deformed. To

In step 1305, the material color / pattern setting means 119 is used to combine the image of the material selected in step 1303 with the shape model of the garment by using the texture mapping technique, and further shade the image by the rendering technique. Create a setting image. At the time of texture mapping, the clothing two-dimensional shape data stored in the component two-dimensional shape information storage means 110 is used as uv data, but the pattern is continuously connected by the component two-dimensional shape creation means 122 in the data registration mode. Since it is created on the screen, the pattern of the material can be reproduced so as to be close to the actual thing, and the customer can check the atmosphere of the pattern on the screen.

In step 1306, the color / pattern setting image created in step 1305 is displayed on the display 104 using the color / pattern setting image display means 120. By looking at the image displayed on the display, the customer can check the quality of the coordination related to the color and the pattern, the quality of the coordination based on the combination of the clothes, and the silhouette and drape of the clothes. Furthermore, since the human body model and the shape model of the clothes reflect the customer's body shape, it is possible to confirm whether or not the body shape is suitable or not. Also, depending on the color pattern of the material, the silhouette of the clothes, etc., it is possible to confirm the effect of making the image look thinner and more plump. The customer confirms the completed state of the clothes based on the color and pattern setting image displayed on the display, and if he likes, determines the specifications of the clothes and proceeds to step 1307 to order. If you don't like it, step 13
It is possible to return to step 01 to reselect from the design of the clothing, return to step 1302 to reselect the individual parts of the clothing, or return to step 1303 to reselect the material.

In step 1307, the color / pattern setting image printing means 121 is used to print out the color / pattern setting image displayed in step 1306 from the printer 105 to a tangible carrier such as paper, plastic sheet, or cloth. The printed color and pattern setting image may be distributed to the customer as a confirmation or service when the customer orders clothing, or attached to an order sheet for confirmation when ordering clothing to a sewing factory. Is also good.

At step 1308, a detailed personal figure of the customer is measured for the manufacture of clothing, and step 130
The clothing is manufactured based on the clothing specifications and measuring information determined in 6. When the sewing factory is located at a different location from the store, the order sheet may be transmitted to the sewing factory using a network or the like, or the order sheet may be transmitted to the sewing factory using FAX.

In the present embodiment, the clothing design is selected, and then the clothing material is selected. However, the clothing material may be selected, and then the clothing design may be selected. As a method of selecting a material first and then selecting a clothing design, a method described in Japanese Patent Application No. 9-292373 by the present applicant can be used.

As described above, the customer determines the specifications of the clothes, creates a virtual fitting state in that case using the above-mentioned shape data creating device, displays it on the screen, and based on the display, the customer further specifies the desired specifications. , And the same virtual fitting is repeated, so that the optimal clothing specification can be finally determined. When the garment is manufactured based on the finally determined specifications in this manner, the garment as imagined by the customer can be manufactured quickly and reliably.

In the above, the example in which the present invention is applied to the easy order of clothes has been described, but the present invention is not limited to this.
For example, if the present invention is applied to seats such as car covers and seats, and covers for accessories such as futons and pillows, the atmosphere of the cover can be confirmed on the screen. Further, for example, when applied to a wall surface of a building, a pavement surface of a road, or the like, a state in which bricks, tiles, and the like are attached can be three-dimensionally expressed and confirmed. As described above, if the product is manufactured based on the specifications confirmed by the customer, the product can be manufactured according to the image of the customer. Further, if the apparatus for creating shape data in this embodiment can be operated from a remote place using the Internet or CATV, it can be applied to mail order sales using the Internet or CATV.

As described above, the method of creating shape data according to the above embodiment is realized by a computer and a program for operating the computer. The program and the data of the various storage means as described above are distributed by a tangible storage medium such as a floppy disk, a CD-ROM, or a transmission means such as a wired or wireless network.

[0127]

As described above, according to the present invention, the optical processing at the time of displaying the three-dimensional polygon data allows the material to be reproduced without troublesome modeling and an extremely large data size. It provides a three-dimensional display method such as thickness, sewing line, press line, etc., and improves the reality of articles at the time of display.

[Brief description of the drawings]

FIG. 1 is a schematic flowchart showing a procedure of an article display method according to an embodiment of the present invention.

FIG. 2 is a schematic model diagram of a sheet-like article using polygons in the article display method according to one embodiment of the present invention.

FIG. 3 is a schematic view showing a state of a normal vector in the article display method according to one embodiment of the present invention.

FIG. 4 is a schematic diagram relating to reflection of light on an object in a method for displaying an article according to an embodiment of the present invention.

FIG. 5 is a schematic diagram relating to adjustment of a normal vector in the model shown in FIG. 2;

FIG. 6 is a schematic diagram showing a display state of the model shown in FIG. 5;

FIG. 7 is a schematic diagram showing a display state of a thickness of the model shown in FIG. 2;

FIG. 8 is a schematic diagram relating to polygon roughness dependence of an expression effect in the article display method according to one embodiment of the present invention.

FIG. 9 is a schematic diagram relating to normal vector adjustment in the article display method according to one embodiment of the present invention.

FIG. 10 is a schematic diagram relating to model combination in the article display method according to one embodiment of the present invention.

FIG. 11 is a schematic diagram relating to model combination in the article display method according to one embodiment of the present invention.

FIG. 12 is a schematic diagram relating to normal vector adjustment in the article display method according to one embodiment of the present invention.

FIG. 13 is a schematic diagram relating to a three-dimensional line setting in the article display method according to one embodiment of the present invention.

FIG. 14 is a schematic diagram relating to setting of a three-dimensional line in the article display method according to an embodiment of the present invention.

FIG. 15 is a schematic block diagram illustrating a configuration of a display device for an article according to an embodiment of the present invention.

FIG. 16 is a schematic view of an example of a shape model of clothing used in one embodiment of the present invention.

FIG. 17 shows a garment 2 used in one embodiment of the present invention.
It is the schematic of the example of dimension paper data.

FIG. 18 is a schematic diagram of an example of a standard human figure model used in one embodiment of the present invention.

FIG. 19 is a schematic view of an example of a control body used in one embodiment of the present invention.

FIG. 20 is a schematic diagram showing a part of an example of information stored in a knowledge storage unit regarding a clothing order used in an embodiment of the present invention.

FIG. 21 is a schematic diagram of an example of a body type change screen used in an embodiment of the present invention.

FIG. 22 is a schematic flowchart showing a procedure of an operation in a data registration mode in the article display method according to one embodiment of the present invention.

FIG. 23 is a schematic diagram relating to mesh data of a component used in an embodiment of the present invention.

FIG. 24 is a schematic diagram relating to a two-dimensional shape uv direction position adjustment used in an embodiment of the present invention.

FIG. 25 shows a two-dimensional shape u according to an embodiment of the present invention.
FIG. 7 is a schematic diagram relating to texture mapping before and after v-direction position adjustment.

FIG. 26 is a schematic view of an example of a pattern used in one embodiment of the present invention.

FIG. 27 is a schematic diagram of a pattern assembly shape according to an embodiment of the present invention.

FIG. 28 is a schematic view of a three-dimensional clothing shape according to an embodiment of the present invention.

FIG. 29 is a schematic view of an example of a pattern used in an embodiment of the present invention.

FIG. 30 is a schematic view of an example of a physique used in one embodiment of the present invention.

FIG. 31 is a view showing 3 after dress calculation in an embodiment of the present invention.
It is a schematic diagram of a three-dimensional shape.

FIG. 32 is a schematic diagram of an example of three-dimensional design part data used in an embodiment of the present invention.

FIG. 33 is a schematic view of a garment shape after replacement of a collar and sleeve parts according to an embodiment of the present invention.

FIG. 34 is a schematic diagram illustrating control points for deforming a three-dimensional garment shape according to an embodiment of the present invention.

FIG. 35 is a schematic diagram relating to three-dimensional clothing shape data and a pattern in one embodiment of the present invention.

FIG. 36 is a schematic diagram showing a part of an example of a data structure defining a shape used in an embodiment of the present invention.

FIG. 37 is a schematic view showing a sewing line display according to an embodiment of the present invention.

FIG. 38 is a schematic view showing a Mercedes-Benz display according to an embodiment of the present invention.

FIG. 39 is a schematic view showing a free edge line display according to an embodiment of the present invention.

FIG. 40 is a schematic diagram relating to a conventional thickness expression method.

FIG. 41 is a schematic diagram relating to free edge line detection in one embodiment of the present invention.

FIG. 42 is a schematic diagram relating to a thickness expression in one embodiment of the present invention.

FIG. 43 is a schematic flowchart regarding a coordinate mode according to an embodiment of the present invention.

[Explanation of symbols]

 10: normal to nodes n1 to n3 11: normal to nodes n7 to n9 12: shadow 13: coarse polygon model 14: shadow 15: fine polygon model 16: shadow 20: polygon model 21: normal 22: normal 23 : The distance between the model periphery and the inside 24: normal line inside the surface 25: node 30: sheet-like article model 31: sheet-like article model 32: edge line 33: edge line 34: joining line 35: included in the article model Node 36: Node included in the article model 37: Normal 38: Normal 39: Concave solid line 40: Convex solid line 41: Area 42: Line 50: Polygon model 51: Line 52: Node 53: Node 54: Polygon Model 55: Normal 56: Normal 101: Personal computer 102: Keyboard 103: Mouse 104: Display 105: printer 106: hard disk device 107: article model information storage means 108: article image information storage means 109: article attribute information storage means 110: part two-dimensional shape information storage means 111: material information storage means 112: human body model information storage means 113: Knowledge storage means for clothing order 114: Parts information storage means 115: Article model selection support means 116: Article shape deformation means 117: Article individual specification parts selection support means 118: Material selection support means 119: Material color / pattern setting means 120 : Color and pattern setting image display means 121: Color and pattern setting image printing means 122: Part two-dimensional shape creation means 123: Article model information creation means 124: Data registration means 125: Mesh creation means 126: Two-dimensional shape uv adjustment means 127: Article three-dimensional shape creation means 128: solid In-information creation means 129: Thickness information creation means 301: Right front best look model 302: Left front best look model 303: Right front best look model 304: Left back best look 401: Pattern 402: Joining information 403: Shape after pattern assembling 404: Clothes shape 405: Body type 406: Pattern 407: Body shape 408: Clothing shape 411: Body part model 412: Collar part model 413: Right sleeve part model 414: Left sleeve part model 415: Replacement collar part model 416: Replacement sleeve part model 421: Hem Length control point 422: Sleeve length control point 423: Chest control point 501: Cloth piece 502: Cloth piece

Claims (16)

[Claims] 1. A method for displaying an article using a shape model, which is an aggregate of a large number of microelements, representing the shape of an article including a sheet having a general shape area and a unique shape area inside or on an edge. Then, display data in the shape model is generated by performing display processing in the singular shape area based on a different rule from display processing in the general shape area, and the surface shape of the article is generated based on the display data. A method for displaying an article, comprising: 2. The article display method according to claim 1, wherein the minute element has a display parameter, and the display data is generated based on the display parameter. 3. The article display method according to claim 2, wherein the display parameter is a normal vector of a surface of the micro element or a node. 4. The article display method according to claim 3, wherein display data in the shape model is generated by interpolation based on a plurality of normal vectors. 5. The article display method according to claim 1, wherein the shape of the shape model in the unique shape area is a simpler shape than the shape of the article in the unique shape area. 6. An apparatus for displaying an article using a shape model, which is an aggregate of a large number of microelements, representing the shape of an article including a sheet having a general shape area and a unique shape area inside or on an edge portion. Means for generating display data in the shape model by performing display processing in the singular shape area based on a different rule from display processing in the general shape area, and processing of the article based on the display data. Means for displaying a surface shape. 7. The microelement has a display parameter.
An article display device according to claim 6. 8. The article display device according to claim 7, wherein the display parameter is a normal vector of a surface of the minute element or a node. 9. The article display device according to claim 7, further comprising means for interpolating and generating display data in the shape model based on a plurality of normal vectors. 10. The article display device according to claim 6, wherein the shape of the shape model in the unique shape area is a simpler shape than the shape of the article in the unique shape area. 11. A means for synthesizing and displaying color / pattern and / or texture data of a sheet material.
0. A display device for an article according to any one of the above items. 12. The article display device according to claim 6, wherein the article is clothing and / or clothing. 13. An article is displayed using the article display method according to any one of claims 1 to 5, a specification of the article is determined based on the display, and the article is manufactured based on the determination. A method for producing an article, characterized by the following. 14. An article manufactured by the method for manufacturing an article according to claim 13. 15. A computer-readable recording medium on which a program for causing a computer to execute the procedure of the method for displaying articles according to claim 1 is recorded. 16. A computer-readable recording medium on which data of a shape model of an article including a sheet is recorded, wherein the data of the shape model records a number of minute elements representing the shape of the article. A computer-readable recording medium having a portion and a portion recording display parameters corresponding to the minute element.