自由角度显示系统下的运动向量算法  

A 3-D motion vector algorithm in a free angle system

作　　者：何雨兰[1] 顾人舒[1] 袁杰[1] 

机构地区：[1]南京大学电子科学与工程学院,江苏南京210093

出　　处：《智能系统学报》2012年第2期115-120,共6页CAAI Transactions on Intelligent Systems

基　　金：江苏省自然科学基金资助项目(BK2010386)

摘　　要：为了解决三维运动矢量计算的问题,提出一种算法,这种算法是在静态三维重建的基础上用二维图片计算刚体运动的线性方法,利用QR分解求解线性方程的最小均方误差解,迭代来消除离群值,来得到运动矢量.这种算法不需要摄像机标定,实时性好,有利于视频的流畅显示,实验结果表明,此种算法具有一定的鲁棒性.In order to solve a 3-D motion vector calculation, a new algorithm was proposed. This algorithm is a linear method that calculates the rigid-body movement from two-dimensional views based on the static 3-D reconstruction. The QR decomposition was adopted to obtain the minimum mean square error of a linear equation set and an iterative process enables the method to eliminate outliers and thus obtain motion vector. This algorithm does not require camera calibration, and it is real-time, which enables smooth video. The experimental results show the algorithm has good robustness.

关 键 词：运动估计 点匹配 线性方程组 QR 分解 迭代 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]