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Modeling method of deformation movement of elastic object

An elastic object, deformation motion technology, applied in the field of simulation modeling, can solve the problem that the motion model is not realistic enough

Active Publication Date: 2015-11-18
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

However, the motion model built by applying the existing elastic object motion modeling method is not realistic enough

Method used

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  • Modeling method of deformation movement of elastic object
  • Modeling method of deformation movement of elastic object
  • Modeling method of deformation movement of elastic object

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0046] figure 1 It is a schematic flow chart of the modeling method of elastic object deformation motion in the embodiment of the present invention; as figure 1 As shown, the method includes the following steps:

[0047] Step 101: collecting the static point cloud of the elastic object and the dynamic point cloud sequence during the deformation movement;

[0048] Step 102: according to the static point cloud, establish a simulated tetrahedral mesh model for simulating the deformation and movement of the elastic object;

[0049] Step 103: drive the simulated tetrahedral mesh model to track the ...

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Abstract

Disclosed in the invention is a modeling method of a deformation movement of an elastic object. The method comprises: a static point cloud and a dynamic point cloud sequence of an elastic object are collected; a simulated tetrahedral mesh model is established; the simulated tetrahedral mesh model is driven to track the dynamic point cloud sequence to obtain a tracking deformation movement sequence; iterative estimation of a material attribute coefficient and a corresponding reference shape of the elastic object is carried out and following operations are implemented at each iterative period: the reference shape corresponding to the current material attribute coefficient is obtained; according to the coefficient and the reference shape, the simulated tetrahedral mesh model is driven to make deformation movement under same initial deformation to obtain a simulated deformation movement sequence; positional deviation between the simulated deformation movement sequence and the tracking deformation movement sequence is calculated; and the material attribute coefficient is updated along the position deviation reduction direction; and according to the material attribute coefficient and reference shape in a minimum position deviation state, a deformation movement model of the elastic object is established. On the basis of the modeling method, an authentic deformation movement model of an elastic object can be established.

Description

technical field [0001] The invention relates to the technical field of simulation modeling, in particular to a modeling method for deformation motion of an elastic object. Background technique [0002] At present, in recent decades, computer graphics technology has been greatly developed, and its research results have been widely used in the fields of film and television games, virtual simulation, design and manufacturing. In addition to dealing with fine geometric models and rendering realistic effects, generating and controlling realistic motion using appropriate mathematical and physical models of objects is a problem to be further studied. [0003] Motion generation and control with physical reality is an indispensable and important part in the field of film and television production and animation. However, the over-simplification and inaccurate parameters of the mathematical model in the traditional method have seriously damaged the accuracy of the simulation results a...

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Application Information

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IPC IPC(8): G06T13/00G06T13/60
Inventor 王滨黄惠伍龙华
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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