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人脸特征点跟踪及夸张人脸动画系统

Keywords: 光流,弹性图匹配,Gabor小波,主动形状模型,MPEG-4

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Abstract:

为了研究视频中人脸特征点的跟踪问题,根据人脸特征点的不同特征,提出了不同的跟踪方法.对于眉都等特征点,利用光流跟踪方法,用拉普拉斯金字塔图代替了通常的灰度图作为光流输入图,减少了累积误差,提高了光流跟踪的准确性;对于嘴部特征点,将光流与弹性图匹配相结合,通过光流预先得到大致位置,减小了弹性图匹配时的搜索范围,提高了跟踪速度;对于眼部特征点,采用图像二值化方法进行跟踪.通过MPEG-4机制将跟踪到的运动数据克隆到系统根据真实人脸特点生成的夸张人脸上进行动画,具有很强的娱乐色彩.

References

[1]  庄莉,徐光祐,艾海舟,等.视频中多线索的人脸特征检测与跟踪[J].计算机学报,2003,26(2):160-167.ZHUANG Li,XU Guang-you,AI Hai-zhou,et al.Multi-clue based facial feature detection and tracking in video[J]. Chinese Journal of Computers,2003,26(2),160-167.(in Chinese)
[2]  宋刚,艾海舟,徐光祐.纹理约束下的人脸特征点跟踪[J].软件学报,2004,15(11):1607-1615.SONG Gang,AI Hai-zhou,XU Guang-you.Texture constrained facial feature point tracking[J].Journal of Software, 2004,15(11):1607-1615.(in Chinese)
[3]  JEPSON A D,FLEET D J,EL-MARAGHI T F.Robust online appearance models for visual tracking[J].IEEE Transactions on Pattern Analysis and Machine Intelligence,2003,25(10):1296-1311.
[4]  WANG Ke,YIN Bao-cai,GUO Jin-tong,et al.Face animation parameters extraction and driving[C]//ISCIT2004. Sappom,Japan:IEEE,2004:1242-1245.
[5]  JOSHI P,TIEN W C,DESBRUN M.Learning controls for blend shape based realistic facial animation[C]//Proc of Symposium on Computer Animation.San Diego:ACM,2003:187-192.
[6]  JIANG Pei-ying,LIAO Wen-hong,LI Cai-yan.Automatic caricature generation by analyzing facial features[C]//ACCV 04. Jeju Island,Korea:ACM,2004:89-94.
[7]  BUENAPOSADA Jose M.Performance driven facial animation using illumination independent appearance-based tracking[C] //Proc of ICPR.Hong Kong:IEEE Comput Soc,2006:303-306.
[8]  BUI The Duy,HEYLEN Dird,NIJHOLT Anton.Improvements on a simple muscle-based 3D face for realistic facial expressions[C]//CASA'2003.Piscataway,NJ:IEEE Comput Soc,2003:33-40.
[9]  KOSHIMIZU H,TOMINAGA M,FUJIWARA T,et al.On kansei facial processing for computerized facial caricaturing system picasso[C]//Proc of IEEE International Conference on Systems,Man,and Cybernetics.Tokyo:IEEE Comput Soc, 1999:294-299.

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