WO2009104777A1 - 着装シミュレーション装置とシミュレーションプログラム、及びシミュレーション方法 - Google Patents
着装シミュレーション装置とシミュレーションプログラム、及びシミュレーション方法 Download PDFInfo
- Publication number
- WO2009104777A1 WO2009104777A1 PCT/JP2009/053116 JP2009053116W WO2009104777A1 WO 2009104777 A1 WO2009104777 A1 WO 2009104777A1 JP 2009053116 W JP2009053116 W JP 2009053116W WO 2009104777 A1 WO2009104777 A1 WO 2009104777A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- simulation
- changed
- mass
- mass points
- garment
- Prior art date
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/12—Cloth
Definitions
- the present invention relates to dressing simulation, and more particularly, to speeding up simulation when the size of a garment is changed.
- Patent Document 1 Japan Special 2 0 0 0— 2 4 2 6 8 3 describes a method for approximating the wearing state of a new design without re-running the simulation. is suggesting.
- a point on the garment is specified when the design is changed, and this point is moved according to the new design. Move the area around the garment in the same way.
- Patent Document 1 Japanese Patent Laid-Open No. 2 0 0 0— 2 4 2 6 8 3 Disclosure of Invention
- An object of the present invention is to enable high-speed and realistic simulation when the size of a garment is changed.
- the present invention generates a plurality of mass points on the designed virtual garment, and simulates the stable state of the plurality of mass points by the inertia force acting between the mass points and the force acting between the human body model and the mass points.
- the dressing simulation device In the dressing simulation device
- a user interface that accepts design changes while displaying simulation results on the display
- a re-simulation means for changing a distance at which the elastic force becomes 0 and re-simulating a stable state of a plurality of mass points from the simulation result.
- the idea simulation program of the present invention generates a plurality of mass points on the designed virtual garment, and uses the elastic force acting between the mass points and the force acting between the human body model and the mass point to generate the plurality of mass points. In order to simulate the stable state of the mass point of
- the distance at which the elastic force becomes 0 is changed, and a re-simulation step is executed to re-simulate the stable state of a plurality of mass points from the simulation result.
- the idea simulation program of the present invention is a designed virtual guard.
- a plurality of mass points are generated on a piece of material, and a stable state of the plurality of mass points is simulated by the inertial force acting between the mass points and the force acting between the human body model and the mass point. While accepting design changes by the user,
- a distance at which the elastic force becomes 0 is changed, and a stable state of a plurality of mass points is re-simulated from the simulation result.
- the change location of the garment and the current size at the change location are displayed along the position and orientation specified by the user, and according to the new size input by the user, The size of the part including the changed portion is changed, and the re-simulation means changes the distance at which the elastic force becomes 0 according to the changed size.
- a means for outputting garment design data according to the size of the changed part is provided.
- the user interface displays the distribution of the elastic force superimposed on an image representing the simulation result.
- the user interface displays the distribution of the distance between the mass point and the human body model on the image representing the simulation result.
- the re-simulation means starts re-simulation from a state where the distance at which the elastic force becomes 0 is changed while maintaining the mass position in the simulation result.
- the re-simulation means starts the re-simulation from a state where the mass point position in the simulation result is changed according to the changed design and the distance at which the elastic force becomes 0 is changed.
- the simulation when the design is changed, the simulation is performed again from the simulation result before the change, so that the simulation can be performed in a much shorter time than when the simulation is restarted from the beginning.
- the original simulation results are not modified in a similar manner but are simulated according to the new design data, it is possible to re-simulate including the interference between the game and the human body model. Therefore, high-speed and accurate re-simulation can be performed.
- the changed part of the garment and the current size at the changed part are displayed, and the size of the part including the changed part is displayed according to the new size entered by the user. Once changed, you can easily specify how to change the size of the part.
- the garment design data is output according to the changed part size
- the garment design data can be changed according to the size change. If the elastic force distribution is overlaid on the image representing the simulation results, you can see where the garment deforms due to interference with the human body model, and you can evaluate the landing position. This makes it easy to change the design.
- the simulation can be started from a state where a large force is applied to the mass point.
- the garment is greatly deformed by re-simulation, so that it does not move due to friction with the human body model, and drape changes from the original state to a new state.
- the mass moves with great force, it can be stabilized in a relatively small number of steps in a new state, and the simulation time can be made relatively short. For this reason, the first simulation results The changed wearing state can be simulated in a relatively short time.
- FIG. 1 is a block diagram of the wearing simulation apparatus of the embodiment.
- FIG. 2 is a diagram showing a simulation algorithm in the embodiment.
- FIG. 3 is a diagram showing a simulation result before the size change in the example.
- FIG. 4 is a diagram showing a size change input screen in the embodiment.
- FIG. 5 is a diagram showing a simulation result after the size change in the example.
- FIG. 6 is a block diagram of the wearing simulation program of the embodiment.
- 1 to 6 show a wearing simulation apparatus 2 and a wearing simulation program 60 according to the embodiment.
- 4 is a path
- 6 is a color display
- 8 is an image input, and here it is a stylus, but it can also be a mouse, joystick, trackball, etc.
- 1 0 is command input, for example a keyboard.
- 1 2 is a color printer that displays design data and simulation images
- 14 is a network interface
- 16 is a general-purpose memory
- 18 is a program memory, and stores simulation programs.
- the wearing simulation apparatus 2 is an information processing apparatus including a computer having a graphic CPU, a general-purpose CPU, a path, and a memory, and executes the wearing simulation program 60.
- the resize input interface 20 is an interface for the user to change the size of the simulated garment.
- 2 4 is the knit design department, which designs knit garments according to input from image input 8 and the like.
- the target of design is not limited to etgarment but may be garment using fabric.
- the data conversion unit 26 converts the knit design into knitting data that can be knitted by a flat knitting machine or the like.
- 28 is an image memory that stores image data such as simulation results.
- mass points are provided so as to represent about 100 to 100 stitches, and simulation is performed based on the mass points.
- mass points for example, a virtual game corresponding to design data is divided into a plurality of parts by a mesh or the like, and for example, a mass point is provided at the intersection of meshes.
- a plurality of mass points are provided for each part, and simulation is performed in units of mass points.
- the mass point generator 31 generates a plurality of mass points on the virtual garment. Adjacent mass points are assumed to be connected to each other by a ⁇ 4 force, and the elastic 4 force may contain terms other than the first order.
- the mass point is generated, the garment is in a relaxed state, and the elastic force becomes 0 at the distance between the mass points at this time, and the elastic force is created even if it is compressed or stretched.
- the mass force of the garment is distributed to each mass point, and the friction with the human body model acts on each mass point with a friction coefficient according to the material of the garment.
- the job of the mass point generator 31 is to replace the design data with a model that can be mechanically simulated, and the elements of the model are mass points.
- the mechanics calculator 3 2 calculates the wearing state of the human body model for the garment model represented by the mass point.
- the shape of the human body model is stored in the memory 16 and the like, and the mechanics calculation unit 3 2 calculates the force acting on each mass point and simulates the motion.
- the working force is the elastic force due to the change in the distance between mass points, the gravitational force, and the frictional force with the human body model.
- the simulation is repeated until the position of each mass point becomes stable.
- the polygon generation unit 33 generates a display polygon based on the positions of the mass points. For example, if there is no need to represent individual yarns, create multiple polygons to cover the surface of the garment.
- the surface of the thread is represented by a polygon.
- the arrangement of the stitches is determined based on the arrangement of the mass points, the yarn is arranged on the stitches, and the polygon is generated on the surface of the yarn.
- the rendering unit 3 4 maps the texture onto the surface of the generated polygon, performs shading, etc., and displays the rendered image on the display as a simulation result.
- Figure 2 shows the simulation algorithm in the example.
- a garment such as a knit garment is designed, and a mass point representing the garment is generated by the mass point generator. Place the mass around the human body model; In other words, a virtual garment is attached to the human body model.
- the stable position of the mass point is calculated by dynamic simulation, a polygon is generated, rendering is performed, and the wearing state is displayed on the display 6 or the like.
- Figure 3 shows an example of the simulation results.
- the clothing to be designed consists of a total of six parts, the body, right sleeve and left sleeve divided into two parts. There are rules such as the same length and width on the front and back, and symmetrical left and right sleeves.
- the distribution of elastic force acting on the mass point is displayed superimposed on the garment image.
- the distance between the mass points is calculated by simulation, and the elastic force is determined by the distance, so the elastic force acting on the mass point can also be easily calculated.
- the area where the elastic force is large is an area where the garment is greatly deformed by wearing. Such deformation is caused by interference between the garment and the human body model.
- the distribution of elastic force is the distribution of strain of garment, and when the distribution of elastic force is displayed, you can see the area where the comfort is tight.
- the distribution of the distance between the mass point and the human body model may be displayed over the simulation image.
- the part where the distance is small is the part where the garment and the human body model are in close contact
- the part where the distance is large is the part where the garment and the human body model are separated. Even in this way, the comfort of the garment can be evaluated.
- Resize input from user is accepted.
- the size can be changed by changing the length or width of each part. In the case of a cylindrical part, the circumference is double the width.
- Fig. 4 shows an example of size change input.
- the cutting plane 40 and the current size are displayed as shown in Fig. 4. .
- This input is intended to change the circumference of the body at the height position of the cut surface 40.
- Whether the data to be changed is circumference or length is specified by, for example, tracing an image by inputting an image along the direction of changing the size, or specifying the direction of change from the keyboard.
- the resize entry counter interface 20 shows the current size at the change location. This size can be expressed in appropriate units, changing to units such as cm. Note that Figure 4 shows an example of resizing input, and a garment different from that shown in Figure 3 is displayed.
- the user inputs a new size from the keyboard or image input. This determines the size of the circumference and length after the change.
- the circumference of the body is changed at one height position, which changes the width of the front body and the back body, and the width of the body is changed at other than the specified height position. .
- new design data is created in the second design section, etc., for example, the user judges that the simulation result is good. Will output. If the design can be represented by a pattern, new pattern data is output.
- Fig. 5 shows the simulation results of the garment wearing state after the size change. In this example, from Fig. 3, the circumference of the body is shortened to remove the side play and the length is shortened.
- the number of mass points is not changed unless it can be simulated by adding or deleting mass points regularly, such as changing the size by 20%. Instead of changing the number of mass points, the stable distance between the mass points is changed according to the size change. Also, when accurately simulating the effect of gravity, the mass of the mass point is changed according to the size change, and if the material is also changed, the coefficient of friction with the human body model may be changed. Next, based on the previous simulation result, for example, the simulation data in Fig. 3, the mechanical simulation is performed again. The range for changing the arrangement of mass points by simulation may be limited according to the degree of size change and the location of change.
- the garment deforms three-dimensionally according to the size change, and the mass point is moved accordingly. If the stable distance between the mass points and the mass of the mass points are changed from this state and simulated again, the stable state can be obtained with very few steps.
- the chest size is closely attached to the human body model by reducing the size, and there is no side play.
- the shadows on the side of Fig. 5 are mostly due to the shadows.
- the resized garment as shown in Fig. 5 fits well with the human body model. order -When designing a maid garment, measure the customer's body shape and convert it into a human body model. Next, using existing design data, the wearing condition is simulated as shown in Fig. 3, for example. If the size is changed as shown in Fig. 4 and simulated again, the result shown in Fig. 5 is obtained. As described above, the wearing state according to the customer's body shape can be evaluated. Even when grading, if multiple human body models are prepared, it is possible to objectively evaluate which size human body model, and therefore what type of garment fits to what type of customer.
- FIG. 6 shows the dressing simulation program 60 of the embodiment.
- 6 1 is a mass point generation command that generates a mass point for a virtual garment according to the design data. At this time, the stable distance between the mass points and the elastic force between the mass points, the mass of the mass point, the friction between the mass point and the human body model Coefficients are also generated.
- the mechanical calculation instruction 62 simulates the stable state when a human body model is worn on a garment consisting of multiple mass points by mechanical calculation.
- Polygon generation command 6 3 generates a polygon covering the garment surface for a garment whose shape is determined by a stable mass point.
- the rendering command 6 4 performs rendering based on the polygon and generates a 3D image.
- the size change support instruction 65 interprets the user input regarding the size change and generates design data for the changed size.
- the mass relocation command 6 6 does not execute the force of repositioning the mass according to the size after the change, preferably before resimulation.
- the strain display command 6 7 displays the garment strain by the elastic force acting on each mass point or the distance from the human body model.
- the knit garment is described, but the same applies to a garment using a woven fabric.
- garments may be put on animals, furniture, and figurines.
- outputting design data or pattern data after resizing is convenient because not only simulation results but also new design data or pattern data can be obtained when the size is changed.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09712933.2A EP2249269A4 (en) | 2008-02-18 | 2009-02-16 | CLOTHING SIMULATION DEVICE, SIMULATION PROGRAM, AND SIMULATION METHOD |
CN2009801038268A CN101933021B (zh) | 2008-02-18 | 2009-02-16 | 穿着模拟装置和模拟方法 |
JP2009554416A JP5431173B2 (ja) | 2008-02-18 | 2009-02-16 | 着装シミュレーション装置とシミュレーションプログラム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008035731 | 2008-02-18 | ||
JP2008-035731 | 2008-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009104777A1 true WO2009104777A1 (ja) | 2009-08-27 |
Family
ID=40985653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/053116 WO2009104777A1 (ja) | 2008-02-18 | 2009-02-16 | 着装シミュレーション装置とシミュレーションプログラム、及びシミュレーション方法 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2249269A4 (ja) |
JP (1) | JP5431173B2 (ja) |
CN (1) | CN101933021B (ja) |
WO (1) | WO2009104777A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103218773A (zh) * | 2011-11-09 | 2013-07-24 | 索尼公司 | 信息处理设备、显示控制方法和程序 |
JPWO2017033620A1 (ja) * | 2015-08-25 | 2018-06-07 | ソニー株式会社 | 情報処理装置、情報処理方法及びプログラム |
JP6994796B1 (ja) | 2021-08-31 | 2022-02-15 | 株式会社Symbol | プログラム、情報処理装置、及び方法 |
JP2022145677A (ja) * | 2021-03-17 | 2022-10-04 | ソフトバンク株式会社 | データ処理装置、プログラム、及びデータ処理方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103258065A (zh) * | 2012-02-19 | 2013-08-21 | 李志强 | 自然人数字化人体仿真的系统和方法 |
EP3038053B1 (en) | 2014-12-22 | 2019-11-06 | Reactive Reality GmbH | Method and system for generating garment model data |
CN105069837B (zh) * | 2015-07-30 | 2018-05-29 | 武汉变色龙数据科技有限公司 | 一种服装试穿模拟方法及装置 |
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JPH11238086A (ja) * | 1997-12-05 | 1999-08-31 | Toray Ind Inc | 物体の形状データの作成方法および物体の形状データの作成装置ならびに物品の製造方法 |
JP2000003376A (ja) * | 1998-06-15 | 2000-01-07 | Toyobo Co Ltd | 衣服の補正方法及びこの方法を用いた衣服の補正装置 |
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WO2003024261A1 (fr) * | 2001-09-11 | 2003-03-27 | Digital Fashion Ltd. | Dispositif d'affichage de patron de papier virtuel, procede d'affichage de patron de papier virtuel, programme d'affichage de patron de papier virtuel et support d'enregistrement lisible par ordinateur contenant le programme |
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JP2008003824A (ja) * | 2006-06-22 | 2008-01-10 | Konami Digital Entertainment:Kk | シミュレーション装置、シミュレーション方法、ならびに、プログラム |
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JP4533643B2 (ja) * | 2004-02-26 | 2010-09-01 | 株式会社島精機製作所 | 人体モデルへのニットガーメントの着装シミュレーション方法とその装置、並びにそのプログラム |
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2009
- 2009-02-16 WO PCT/JP2009/053116 patent/WO2009104777A1/ja active Application Filing
- 2009-02-16 EP EP09712933.2A patent/EP2249269A4/en not_active Withdrawn
- 2009-02-16 CN CN2009801038268A patent/CN101933021B/zh not_active Expired - Fee Related
- 2009-02-16 JP JP2009554416A patent/JP5431173B2/ja not_active Expired - Fee Related
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JPH11238086A (ja) * | 1997-12-05 | 1999-08-31 | Toray Ind Inc | 物体の形状データの作成方法および物体の形状データの作成装置ならびに物品の製造方法 |
JP2000003376A (ja) * | 1998-06-15 | 2000-01-07 | Toyobo Co Ltd | 衣服の補正方法及びこの方法を用いた衣服の補正装置 |
JP2000242683A (ja) * | 1999-02-23 | 2000-09-08 | Fujitsu Ltd | 物体の形状データの作成方法、その装置および記憶媒体 |
WO2003024261A1 (fr) * | 2001-09-11 | 2003-03-27 | Digital Fashion Ltd. | Dispositif d'affichage de patron de papier virtuel, procede d'affichage de patron de papier virtuel, programme d'affichage de patron de papier virtuel et support d'enregistrement lisible par ordinateur contenant le programme |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103218773A (zh) * | 2011-11-09 | 2013-07-24 | 索尼公司 | 信息处理设备、显示控制方法和程序 |
CN103218773B (zh) * | 2011-11-09 | 2017-09-01 | 索尼公司 | 信息处理设备、显示控制方法和程序 |
JPWO2017033620A1 (ja) * | 2015-08-25 | 2018-06-07 | ソニー株式会社 | 情報処理装置、情報処理方法及びプログラム |
JP2022145677A (ja) * | 2021-03-17 | 2022-10-04 | ソフトバンク株式会社 | データ処理装置、プログラム、及びデータ処理方法 |
JP7365457B2 (ja) | 2021-03-17 | 2023-10-19 | ソフトバンク株式会社 | データ処理装置、プログラム、及びデータ処理方法 |
JP6994796B1 (ja) | 2021-08-31 | 2022-02-15 | 株式会社Symbol | プログラム、情報処理装置、及び方法 |
WO2023032647A1 (ja) * | 2021-08-31 | 2023-03-09 | 株式会社Symbol | プログラム、情報処理装置、及び方法 |
JP2023034919A (ja) * | 2021-08-31 | 2023-03-13 | 株式会社Symbol | プログラム、情報処理装置、及び方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2249269A1 (en) | 2010-11-10 |
JP5431173B2 (ja) | 2014-03-05 |
EP2249269A4 (en) | 2013-05-15 |
JPWO2009104777A1 (ja) | 2011-06-23 |
CN101933021B (zh) | 2012-10-17 |
CN101933021A (zh) | 2010-12-29 |
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