三维人脸建模中面部特征轮廓线的提取.pdfVIP

18 8 © Vol. 18 No. 8 2006 8 Journal of System Simulation Aug., 2006 1,2 2 2 3 , , , (1., 300072 2., , 518060 3., 518060) Snake Snake Snake TP391.41 A 1004-731X (2006) 08-2105-04 Facial Feature Contour Extraction for 3D Head Modeling 1,2 2 2 2 GAO Peng-dong PENG Xiang TIAN Jin-dong LIU Ze-yi (1.State Key Lab of Precision Measurement Technology and Instrumentation, Tianjin University, Tianjin 300072, China; 2.Key Lab of Optoelectronic Devices and Systems of Chinese Education Ministry, Shenzhen University, Shenzhen 518060, China 3.Department of Mathematics of Science College, Shenzhen University, Shenzhen 518060, China) Abstract A new approach of facial feature contour extraction for realistic 3D facial modeling is proposed, based on the color Snake model and some prior facial knowledge. On the basis of image segmentation by complexion and gray information, some rough facial feature contours can be outlined by seed-filling the non-complexional regions. Then a modified color Snake model was used to fine-draw the rough contours. Finally, based on some prior facial knowledge and directional morphological edge detector, the chin can be traced by checking the point once in turn. Experiment results indicate our approach has good performance in both speed and accuracy. Therefore it has a wide range of applications in both realistic 3D facial modeling and face recognition