Method for dynamically simulating human body and clothing in computer

An implementation method and dynamic simulation technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of lack of flexibility, time-consuming, and lack of real-time performance of clothing models.

CN104881557AActive Publication Date: 2015-09-02NANJING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-09-02

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Abstract

The invention discloses a method for dynamically simulating a human body and clothing in a computer. The simulation effect of different materials is achieved by setting key steps in physical simulation. The method includes the main steps of modeling the human body, processing a human body model and a clothing model, calculating clothing simulation by using mechanics knowledge, correcting after integration, impact detecting and responding. Based on a traditional mass point spring model, a large bending spring is provided to generate a wrinkle effect, corresponding spring parameters are set according to properties of the different materials, a comprehensive correction strategy is adopted in mass point clothing, and a perfect impact response scheme is provided to take characteristics of all the materials into account. Traditional clothing materials are distinguished through a great deal of parameter measurement and geometric methods, the defects that a traditional method is low in efficiency or poor in flexibility are overcome, and the different materials can be dynamically simulated.
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Description

technical field

[0001] The invention relates to the technical field of computer graphics, in particular to a method for realizing dynamic simulation of human body clothing in a computer in the technical field of computer clothing simulation. Background technique

[0002] Virtual fitting is a hot issue in the field of virtual reality today, and related technologies have been applied to many fields, such as online shopping, CG movies, 3D games, 3D animation, etc. Online clothing shopping is undoubtedly the most important field of virtual fitting applications. This emerging technology has brought great convenience to consumers, and has the advantages of cost saving, time saving, and more diversified choices.

[0003] At present, the physics-based simulation method is the mainstream of dynamic clothing simulation, because this method can achieve better visual effects and meet the real-time requirements of the fitting system. In addition, compared with the geometric simulation me...

Examples

Embodiment Construction

[0080] The method of the present invention can be divided into five big steps, as figure 1 As shown, including 1 parametric human body modeling, 2 clothing and human body model preprocessing, 3 clothing simulation animation realization, 4 post-integral correction, 5 collision detection and response.

[0081] Concrete steps of the present invention are as follows:

[0082] 1) Parametric human body modeling

[0083] Such as figure 2 as shown,

[0084] a. Obtain the feature points and feature dimensions of the human body surface. The specific acquisition method can be set through the depth camera or manually

[0085] b. Preprocessing the acquired data;

[0086] c. Each human body part establishes a surface grid by layering, so it is necessary to calculate the model value points of the layered section;

[0087] d. Reconstruct the surface of the human body in blocks, and use the interpolation spline surface mentioned in Document 4 to build the surface of each part. The gener...