Facial Expression Recognition Based on Extended Optical Flow Constraint
Optical flow is an important method of motion image analysis and has a widely application in machine vision and image processing. The extended optical flow constraint based on the continuity equation of fluid motion is robust to the changes of brightness and deformation of motion objects. In this paper, on the basis of the extended optical flow constraint, a novel approach for estimating facial expression motion is presented. First-order and second-order div-curi splines as an additional constraint conditions are introduced for the calculation of nonrigid motion optical flow field, and the approach is used to calculated optical flow field of facial expressions sequences, The experiment results show the methods can compute effectively facial expression optical flow fields.
Optical flow extended constraint Facial expression recognition
Wang Guojiang Yang Guoliang Fu Kechang
Chengdu University of Information Technology, Chengdu, 610225, China Jiangxi University of Science and Technology, Ganzhou, 341000, China
国际会议
长沙
英文
1467-1470
2010-05-11（万方平台首次上网日期，不代表论文的发表时间）