CN104123655A - Simulation fitting system - Google Patents
Simulation fitting system Download PDFInfo
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- CN104123655A CN104123655A CN201410319230.4A CN201410319230A CN104123655A CN 104123655 A CN104123655 A CN 104123655A CN 201410319230 A CN201410319230 A CN 201410319230A CN 104123655 A CN104123655 A CN 104123655A
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Abstract
The invention discloses a simulation fitting system. A 2D information gathering device gathers the picture message of clothes and inputs to a 2D clothes storage module to store, a 3D information gathering device gathers dynamic information of a human body and inputs into a human body model storage module, a data input device directly inputs clothes material information into a clothes material database, the information in the 2D clothes storage module is converted into 3D clothes data through a 2D-3D clothes conversion module, the 3D clothes data is stored in a 3D clothes database, the 3D clothes data in the 3D clothes database is matched with the dynamic information of the human body in the human body model matching module through a 3D clothes and human body model matching module to perform fitting, and the fitting effect is output to display through an output module. The simulation fitting system is capable of separating the original clothes and human body from a human body video shot by a high-definition camera to construct a three-dimensional dynamic behavior model of the human body and a three-dimensional clothes model and also capable of really reacting the human body and clothes effect to enable the fitting effect to get closer to the reality.
Description
Technical field
The present invention relates to a kind of simulation fitting device, especially relate to a kind of emulation dressing system.
Background technology
The overbearing tide of ecommerce have swepts the globe, clothes choose the very large proportion that accounts for especially shopping at network.At present, the service that the online clothes shop of platform Network Based provides is very limited, such as providing the two dimension of clothes or 3-D view, the simple combination of garment elements, the conversion of clothes pattern texture etc., these inferior technology make client often can't buy fit clothes, cause the high situation of clothes network selling return of goods rate, badly influence the trust of people to shopping at network.
Three-dimensional garment CAD system can make client just can see the virtual dressing effect being the theme with self before buying clothes, and realistic simulation goes out to have the clothes of style, texture, pattern; Meanwhile, also can allow designer before making clothes, just can see unlike material, different densities, different-thickness, different stature models' dressing effect.Therefore, how to utilize the latest scientific research in the fields such as computer graphics, virtual reality, clothes are carried out to the focus that dynamic simulation becomes current research and application.
OpenGL is the abbreviation of Open Graphics Library, is that a set of three-dimensional picture is processed storehouse, is also the industry standard in this field.Computerized three-dimensional figure refers to the technology that the three dimensions of data description is changed into two dimensional image and shown or print by calculating.OpenGL is exactly the routine library of supporting this conversion, and it comes from SGI company for the IRISGL of its graphics workstation exploitation, in cross-platform migration process, develops into OpenGL.
OpenGL is designed to be independent of hardware, is independent of windows system, can on the computing machine of various operating systems, can use, and can, at net environment with C/S model work, be the test pattern storehouse of the high-end applications such as professional graphics process, science calculating.
Summary of the invention
The object of the invention is can not fit in time when solving present online purchase clothes, cannot know whether the fit problem of buying error that often runs into, a kind of emulation dressing system is provided, can be according to different people, different clothes information are carried out simulation fitting, can avoid buying the loss that error causes.
The present invention is the deficiency solving the problems of the technologies described above, and the technical scheme adopting is:
A kind of emulation dressing system, comprise information acquisition module, 2D-3D clothes modular converter, 3D garment data, 2D clothes memory module, clothes material memory module, 3D clothes and manikin matching module, manikin memory module and output module, information acquisition module comprises 2D information collecting device, 3D information collecting device and data input device, by 2D information collecting device, gather the pictorial information of clothes and input in 2D clothes memory module and store, 3D information collecting device is by gathering human body multidate information and inputting manikin memory module, data input device is directly inputted clothes material information and is entered clothes material quality data storehouse, information exchange in 2D clothes memory module is crossed 2D-3D clothes modular converter and is converted in 3D clothes data storage and 3D garment data, 3D clothes data in 3D garment data are mated and are fitted with human body multidate information in manikin matching module by 3D clothes and manikin matching module, and by the clothes material information in clothes material quality data storehouse, clothes effect is adjusted, clothes effect is by output module output display.
In the simulation process of human body and clothes, in order to reach more real effect, need to set up the collision detection mechanism of human body and clothes so that produce truly fit under environment as elegant, fold, very straight texts.This invention is by setting up the bounding volume hierarchy (BVH) of human body and clothes, then in conjunction with human body walking pattern, judge whether human body bounding volume hierarchy (BVH) binary tree and clothes bounding volume hierarchy (BVH) binary tree can exist collision, and the degree of depth (dynamics) of collision is carried out emulation.
Judgement clothes and human body (or around object) are no has collision to be just summed up as the algorithm that two binary trees is traveled through and sentenced friendship.Algorithm is as follows:
For clothes and human body build respectively AABB binary tree tree (tree 1 and tree 2);
Collision_Detection(tree 1, tree 2);
void?Collision_Detection?(CboundingBox?*Tree1Node,?CBoundingBox
*Tree2Node)
{
The root node of tree 2 is pressed level traverse tree 1;
/ * is the root node and tree 1 certain node bounding box zero lap of if tree 2 wherein, judges and the bounding box zero lap of its child node, does not access these child nodes; If find with the bounding box of certain level of tree 1 all non-intersectly or traveled through the leafy node of tree 1, exit traversal.*/
If(discovery is all non-intersect with the bounding box of certain level of tree 1)
{
Collision, does not stop downward traversal;
}
else
{
While (i=0; The leafy node number bumping in i< tree 1; I++)
{
With i node, press level traverse tree 2;
If/* is this node and tree 2 certain node bounding box zero lap wherein, judge and the bounding box zero lap of its child node, do not access these child nodes; If find with the bounding box of certain level of tree 2 all non-intersectly or traveled through the leafy node of tree 2, exit traversal.*/
If(finds with the bounding box of tree 2 certain level non-intersect)
{
continue;
}
else
{
To being tested with the leafy node of overlapping tree 2 and i the leafy node of tree 1, carry out the collision detection of basic geometric element.If any collision, carry out collision response adjustment;
}
}
}
}。
Top-down is one-piece construction from clothes, according to the character of monoblock clothes, recursively cuts apart clothes, and the bounding box that generates subordinate forms the node of bounding volume hierarchy (BVH) tree, until arrive leaf node.And Bottom-up approach is first using how much yuan (triangles) forming clothes as leaf node, then utilize its local property, construct corresponding bounding box, then they are recursively combined, generate higher leveled bounding box node, until generate one, approach the bounding box of whole apparel construction as the root node of bounding volume hierarchy (BVH).
In this invention exploitation, adopted first top-down structure of constructing bounding volume hierarchy (BVH) binary tree, then from leafy node, start the bounding box data of bottom-up recursive calculation leafy node and father node thereof.
Described 2D information collecting device adopts CCD camera.
Described 3D information collecting device adopts any one in video capture device.
Described data input device adopts external connection keyboard.
Described output module adopts liquid crystal display.
The invention has the beneficial effects as follows: the human body video that 1, this system can photograph high-definition camera carries out former clothes and carries out separated with human body, build Three-Dimensional Dynamic behavior model and the three-dimensional garment model of human body, can react really human body and clothes effect, make clothes effect closer to reality more.
2, the human body video scene that this system can photograph high-definition camera carries out three-dimensional simulation, while being the clothes effect under having wind conditions such as body model, can be the wind-force model construction under this scene out, so that when clothes effect is demonstrated, embody the clothes effect under wind-force effect.
3, this system can be three-dimensional (3 D) manikin and three-dimensional garment model construction bounding volume hierarchy (BVH) binary tree; Can build the moderate bounding volume hierarchy (BVH) binary tree of granularity according to human physiological structure and clothes member and the principle of making, granularity is excessive, and simulated effect is poor; Undersized, calculated amount is excessive, and simulated effect continuity is not strong.
4, this system can be sentenced friendship judgement to human body bounding volume hierarchy (BVH) binary tree and clothes bounding volume hierarchy (BVH) binary tree by top-down mode, if existed, occurs simultaneously, and just shows to have collision, will produce certain deformation; If there is no occur simultaneously, just show the not collision of human body and clothes.
Accompanying drawing explanation
Fig. 1 is the middle signal conveying flow block diagram of this patent.
Embodiment
Shown in figure, embodiment is as follows:
A kind of emulation dressing system, comprise information acquisition module, 2D-3D clothes modular converter, 3D garment data, 2D clothes memory module, clothes material memory module, 3D clothes and manikin matching module, manikin memory module and output module, information acquisition module comprises 2D information collecting device, 3D information collecting device and data input device, by 2D information collecting device, gather the pictorial information of clothes and input in 2D clothes memory module and store, 3D information collecting device is by gathering human body multidate information and inputting manikin memory module, data input device is directly inputted clothes material information and is entered clothes material quality data storehouse, the information exchange of storing in 2D clothes memory module is crossed 2D-3D clothes modular converter and is converted in 3D clothes data storage and 3D garment data, 3D clothes data in 3D garment data are mated and are fitted with human body multidate information in manikin matching module by 3D clothes and manikin matching module, and by the clothes material information in clothes material quality data storehouse, clothes effect is adjusted, clothes effect is by output module output display.
Described 2D information collecting device adopts CCD camera.
Described 3D information collecting device adopts any one in video capture device.
Described data input device adopts external connection keyboard.
Described output module adopts liquid crystal display.
Two dimension garment data is mainly stored the picture of clothes; Three-dimensional garment database is mainly stored the detailed data of clothes, comprises the information such as style, length of brachium, sleeve length, neckline; Material quality data storehouse be used for depositing the fabric, density of clothes, whether can washing, the information such as acid resistance, protective clothing type.Outside two-dimentional clothes deposit two-dimentional garment data in after taking by camera or video camera; The two dimensional image that clothes 2D-3D modular converter can be taken camera changes into 3D image of clothing; The dynamic video of human body carries out human body kimonos by the software in system after taking by high-definition camera and puts into row separation, and the three-dimensional information of clothes is deposited in to three-dimensional garment database, and the three-dimensional character of the walking of human body is deposited in to body model's database; When needs are fitted, by the selection interface of this software, the three-dimensional garment that can select user to like, then mates these clothes and 3 D human body dynamic model; Finally by video software, true man's clothes effect is play, produced dynamic fitting simulated effect.
In the simulation process of human body and clothes, in order to reach more real effect, need to set up the collision detection mechanism of human body and clothes so that produce truly fit under environment as elegant, fold, very straight texts.This invention is by setting up the bounding volume hierarchy (BVH) of human body and clothes, then in conjunction with human body walking pattern, judge whether human body bounding volume hierarchy (BVH) binary tree and clothes bounding volume hierarchy (BVH) binary tree can exist collision, and the degree of depth (dynamics) of collision is carried out emulation.
Judgement clothes and human body (or around object) are no has collision to be just summed up as the algorithm that two binary trees is traveled through and sentenced friendship.Algorithm is as follows:
For clothes and human body build respectively AABB binary tree tree (tree 1 and tree 2);
Collision_Detection(tree 1, tree 2);
void?Collision_Detection?(CboundingBox?*Tree1Node,?CBoundingBox
*Tree2Node)
{
The root node of tree 2 is pressed level traverse tree 1;
/ * is the root node and tree 1 certain node bounding box zero lap of if tree 2 wherein, judges and the bounding box zero lap of its child node, does not access these child nodes; If find with the bounding box of certain level of tree 1 all non-intersectly or traveled through the leafy node of tree 1, exit traversal.*/
If(discovery is all non-intersect with the bounding box of certain level of tree 1)
{
Collision, does not stop downward traversal;
}
else
{
While (i=0; The leafy node number bumping in i< tree 1; I++)
{
With i node, press level traverse tree 2;
If/* is this node and tree 2 certain node bounding box zero lap wherein, judge and the bounding box zero lap of its child node, do not access these child nodes; If find with the bounding box of certain level of tree 2 all non-intersectly or traveled through the leafy node of tree 2, exit traversal.*/
If(finds with the bounding box of tree 2 certain level non-intersect)
{
continue;
}
else
{
To being tested with the leafy node of overlapping tree 2 and i the leafy node of tree 1, carry out the collision detection of basic geometric element.If any collision, carry out collision response adjustment;
}
}
}
}。
Top-down is one-piece construction from clothes, utilizes the character of monoblock clothes recursively to cut apart clothes, and the bounding box that generates subordinate forms the node of bounding volume hierarchy (BVH) tree, until arrive leaf node.And Bottom-up approach is first using how much yuan (triangles) forming clothes as leaf node, then utilize its local property, construct corresponding bounding box, then they are recursively combined, generate higher leveled bounding box node, until generate one, approach the bounding box of whole apparel construction as the root node of bounding volume hierarchy (BVH).
In this invention exploitation, adopted first top-down structure of constructing bounding volume hierarchy (BVH) binary tree, then from leafy node, start the bounding box data of bottom-up recursive calculation leafy node and father node thereof.
Claims (5)
1. an emulation dressing system, it is characterized in that: comprise information acquisition module, 2D-3D clothes modular converter, 3D garment data, 2D clothes memory module, clothes material memory module, 3D clothes and manikin matching module, manikin memory module and output module, information acquisition module comprises 2D information collecting device, 3D information collecting device and data input device, by 2D information collecting device, gather the pictorial information of clothes and input in 2D clothes memory module and store, 3D information collecting device is by gathering human body multidate information and inputting manikin memory module, data input device is directly inputted clothes material information and is entered clothes material quality data storehouse, the information exchange of storing in 2D clothes memory module is crossed 2D-3D clothes modular converter and is converted in 3D clothes data storage and 3D garment data, 3D clothes data in 3D garment data are mated and are fitted with human body multidate information in manikin matching module by 3D clothes and manikin matching module, and by the clothes material information in clothes material quality data storehouse, clothes effect is adjusted, clothes effect is by output module output display.
2. a kind of emulation dressing system according to claim 1, is characterized in that: described 2D information collecting device adopts CCD camera.
3. a kind of emulation dressing system according to claim 1, is characterized in that: described 3D information collecting device adopts any one in video capture device.
4. a kind of emulation dressing system according to claim 1, is characterized in that: described data input device adopts external connection keyboard.
5. a kind of emulation dressing system according to claim 1, is characterized in that: described output module adopts liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319230.4A CN104123655A (en) | 2014-07-07 | 2014-07-07 | Simulation fitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319230.4A CN104123655A (en) | 2014-07-07 | 2014-07-07 | Simulation fitting system |
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|---|---|
| CN104123655A true CN104123655A (en) | 2014-10-29 |
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ID=51769057
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410319230.4A Pending CN104123655A (en) | 2014-07-07 | 2014-07-07 | Simulation fitting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851005A (en) * | 2015-05-18 | 2015-08-19 | 包建伟 | O2O electronic commerce platform for self-help clothing design and 3D display |
| CN106875470A (en) * | 2016-12-28 | 2017-06-20 | 广州华多网络科技有限公司 | The method and system for changing main broadcaster's image of live platform |
| CN107895315A (en) * | 2017-12-25 | 2018-04-10 | 戴睿 | A kind of net purchase dressing system and method based on virtual reality |
| CN109388229A (en) * | 2017-08-11 | 2019-02-26 | 哈尔滨工业大学 | A kind of immersion virtual fit method and system with sense of touch experience |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398942A (en) * | 2008-04-24 | 2009-04-01 | 中山大学 | Three-dimensional fitting emulation system |
| CN102509224A (en) * | 2011-10-21 | 2012-06-20 | 佛山伊贝尔科技有限公司 | Range-image-acquisition-technology-based human body fitting method |
| CN102902868A (en) * | 2011-07-26 | 2013-01-30 | 赵朔琼 | Three-dimensional simulated clothes fitting system applied to network |
-
2014
- 2014-07-07 CN CN201410319230.4A patent/CN104123655A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398942A (en) * | 2008-04-24 | 2009-04-01 | 中山大学 | Three-dimensional fitting emulation system |
| CN102902868A (en) * | 2011-07-26 | 2013-01-30 | 赵朔琼 | Three-dimensional simulated clothes fitting system applied to network |
| CN102509224A (en) * | 2011-10-21 | 2012-06-20 | 佛山伊贝尔科技有限公司 | Range-image-acquisition-technology-based human body fitting method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851005A (en) * | 2015-05-18 | 2015-08-19 | 包建伟 | O2O electronic commerce platform for self-help clothing design and 3D display |
| CN106875470A (en) * | 2016-12-28 | 2017-06-20 | 广州华多网络科技有限公司 | The method and system for changing main broadcaster's image of live platform |
| CN109388229A (en) * | 2017-08-11 | 2019-02-26 | 哈尔滨工业大学 | A kind of immersion virtual fit method and system with sense of touch experience |
| CN107895315A (en) * | 2017-12-25 | 2018-04-10 | 戴睿 | A kind of net purchase dressing system and method based on virtual reality |
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Application publication date: 20141029 |