A 3D Face Coordinate System for Ezpression-Changed Pose Alignment
3D face data have been increased recently with the development of 3D data acquisition technology. 3d face has extensive applications. A proper coordinate system defined on faces is sometimes necessary. However, building a canonical coordinate system for all the 3D faces presenting the physiological vertical direction of human face is still an open question. In this paper, we propose a new 3D face canonical coordinate system based on the physiological structure of human face. Once locating the nose tip and finding the symmetry plane, we use the circular points on the face around the cheekbones to decide the front view, as the direction of the average normal of them is almost vertical to the center axis of human head. The experiment shows that our method is robust to rough data and provides a uniform description for all the 3D face models with different positions and expressions.
Ping Hu Weiguo Cao Hua Li Zongkai Lin
National Research Center for Intelligent Computing Systems, Institute of Computing Technology,Chines Graduate University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
国际会议
The Fifth International Conference on Image and Graphics(第五届国际图像图形学学术会议 ICIG 2009)
西安
英文
847-852
2009-09-20（万方平台首次上网日期，不代表论文的发表时间）