透视投影下基于轨迹基的非刚体三维结构恢复研究  

Research on Recovery of Three-dimensional Structure of Non-rigid Body Based on Trajectory Basis under Perspective Projection

作　　者：王晶[1] 包晓敏[1] 汪亚明[1] 

机构地区：[1]浙江理工大学信息学院,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2014年第1期40-44,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家自然科学基金(61272311;61070063)

摘　　要：基于预定义轨迹基重建的非刚体运动重建算法通常采用因式分解方法,该方法在仿射摄像机模型下恢复物体的结构信息和运动信息,未考虑深度信息,从而使算法在深度变化明显时具有较大重建误差甚至呈现病态。在基于预定义轨迹基的非刚体运动重建算法中引入一种线性迭代过程,使图像深度信息得以恢复,从而使算法在透视投影模型下可以适用。人体运动重建结果表明,提出的方法是可行和有效的。To improve the stability of motion restructuring algorithm of non-rigid body, people put forward a restructuring method based on predefined trajectory basis. However, this method is still based on the affine model which does not consider depth information, thus making the algorithm have big re- structuring error and even show ill condition when depth changes greatly. In allusion to this problem, this paper introduces a linear iteration process for motion restructuring algorithm of non-rigid body based on predefined trajectory basis, thus recovering image depth information and making the algorithm applicable under perspective projection model. The analysis on human motion restructuring result shows that the method put forward in this paper is feasible and effective.

关 键 词：非刚体 轨迹基 深度信息 透视投影 仿射模型 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]