Dynamic collision detection method

A collision detection and dynamic technology, applied in the field of collision detection, can solve the problems of low detection accuracy, accelerated collision detection of polyhedron scenes, and insignificant improvement in efficiency, and achieve the effect of improving collision detection speed.

Inactive Publication Date: 2018-01-19
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hierarchical bounding box technology is used to speed up the collision detection of polyhedron scenes, but the bounding box method as a whole method has low detection accuracy and the efficiency improvement is not obvious

Method used

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Embodiment Construction

[0031] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0032] A dynamic collision detection method provided by the present invention is based on the following definitions:

[0033] Definition 1. For any vertex P of a polyhedron, all faces with P as vertices are called P’s adjacent faces, all edges with P as endpoints are called P’s adjacent sides, and the other end points of all adjacent sides are called P’s Adjacent vertices; as shown in Figure 1(a), the adjacent points of Pc are...

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Abstract

The invention provides a dynamic collision detection method. According to the invention, after a convex polyhedron is divided into a plurality of tetrahedrons, and a detection problem of the collisionbetween two complex convex bodies is converted into a problem of parallel detection of collision between the plurality of tetrahedrons. A parallel collision detection algorithm based on a convex bodypart improves the collision detection speed in a better way, and the execution time of a program tends to linearly decrease with the increase of the number of processing nodes.

Description

technical field [0001] The invention relates to a collision detection method. Background technique [0002] The collision problem has been paid more attention for many years, and the collision detection method has a good application prospect in the fields of computational geometry, computer animation, simulation robot and virtual reality. [0003] In recent years, domestic and foreign scholars have done a lot of meaningful work in the field of collision detection and proposed some efficient detection methods. These methods can be divided into static collision detection algorithms, discrete collision detection methods and continuous collision detection methods from the perspective of time domain; from the perspective of space domain, they can be divided into collision detection methods based on entity space and collision detection methods based on image space. Detection method. For the method based on entity space, it can be divided into two categories according to the diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/10G06T15/08G06T15/10
Inventor 熊玉梅
Owner SHANGHAI DIANJI UNIV
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