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Human limbs three-dimensional model construction based on muscle volume invariance

A limb and volume technology, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as reducing the amount of calculation for motion analysis, and achieve the effect of reducing computational complexity, easy implementation, and easy installation

Inactive Publication Date: 2005-07-27
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing three-dimensional model of the human body has too many parameters representing skin deformation, and propose a three-dimensional modeling method for human limbs based on the invariance of muscle volume, which is simple and easy to implement, and the established model uses very few parameters It can represent the deformation of human limb skin, reduce the calculation amount of motion analysis, and is suitable for the modeling of various elastic connection rigid bodies

Method used

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  • Human limbs three-dimensional model construction based on muscle volume invariance
  • Human limbs three-dimensional model construction based on muscle volume invariance
  • Human limbs three-dimensional model construction based on muscle volume invariance

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Embodiment Construction

[0025] In order to better understand the technical solutions of the present invention, further detailed descriptions are given below in conjunction with the accompanying drawings and embodiments. The embodiments are specific to the attached Figure 4 In the first line, the first frame and the second frame of images (photographed by the left camera) describe the process of modeling the upper limbs.

[0026] 1. Extract and match the marked points from the image and obtain the three-dimensional coordinates corresponding to the marked points. In the method of the present invention, six paper marking points are pasted on the skin of human limbs, of which three are on the upper limbs and three are on the lower limbs. A binocular stereo vision system is used to shoot image sequences of human body posing. Figure 4 Each frame of images shown in the first row is an image sequence taken by the left camera. In the present invention, each limb only needs 3 feature points on the first frame of i...

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Abstract

A method for setting up 3-D model of human limbs includes shooting image series of human limbs postures and picking up mark point from them, confirming space 3-D coordinates corresponded by these marks then obtaining space 3-D position data of limb bone at each time, solving out corresponding deformation parameter and volume by equation with coordinate value as well as deformation parameter of rotation conical curve, and using ball and curve to draw out model of human limbs.

Description

Technical field [0001] The invention relates to a three-dimensional modeling method of human limbs based on the invariance of muscle volume, which is used in application fields such as perception interfaces, motion analysis and virtual reality, and is used in medical images, biomedicine, gesture recognition, video conferences, video games, automatic news Broadcasting, film making, material deformation, image compression and other aspects have practical application value. It belongs to the field of computer vision and computer graphics. Background technique [0002] The research objects in the field of motion analysis are mainly divided into rigid objects, connected rigid bodies and non-rigid objects. Motion analysis research in computer vision mainly focuses on the research of rigid body motion, and scholars have achieved a series of results and established a relatively complete theoretical framework. However, in the real world, most of them are non-rigid body motion. The human b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
Inventor 潘海朗刘允才
Owner SHANGHAI JIAO TONG UNIV
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