采用标记点的弹性连接体三维建模与运动估计

3D Modeling and Motion Estimation of Elastic Articulated Objects from Image Points

为了采用非常少的参数就能反映人肢体皮肤的变形,提出了一种新的旋转圆锥曲面进行弹性连接体(人体)三维建模,模型包括了人体三维骨架和代表人肢体皮肤的变形曲面方程,每个肢体只需调整一个变形参数就能反映出人肢体皮肤的变形.根据双目图像序列的标记点估计人体三维变形和运动参数,包括了骨架的运动参数估计和变形曲面的变形参数确定.实验结果表明:模型能正确地反映人肢体皮肤的变形,运动估计算法能精确地估计人体运动参数.

This paper presented a new method of elastic articulated objects （human bodies） modeling based on a new revolving conic surface. The model includes 3D object skeleton and deformable surfaces which can represent the deformation of human body surfaces. The deformation of human body surfaces can be represented by adjusting only one deformation parameter for each limb. Then, the 3D deformation and motion parameters are determined by corresponding 2D image points with volume invariable constraint from a sequences of stereo images. The algorithm presented in this paper includes motion parameter estimation of the skeleton and parameter determination of deformable surface.