Title :
Flexible face animation using MPEG-4/SNHC parameter streams
Author_Institution :
Bell Labs., Lucent Technol., Murray Hill, NJ, USA
Abstract :
We describe a new approach to animating generic 3D wireframe models of human heads using MPEG-4 synthetic/natural hybrid coding (MPEG4/SNHC) facial definition parameters (FDP) points and facial animation parameters (FAP) streams. The FDP points are used to partition a head model into sections that have approximately conforming motion with human muscles. Using the borders of these sections as features, a 3D morphing algorithm is developed to morph vertices from one frame to the next while preserving the qualities of facial expressions such as those of human visual speech. A comparison is made with the facial animation table (FAT) approach proposed in MPEG-4/SNHC. Experimental results on standard FAP sequences and on a proprietary system are shown
Keywords :
code standards; computer animation; image morphing; image sequences; telecommunication standards; video coding; 3D morphing algorithm; FAP streams; FDP points; MPEG-4 synthetic/natural hybrid coding; MPEG-4/SNHC parameter streams; experimental results; facial animation parameters; facial animation table; facial definition parameters; facial expressions; generic 3D wireframe models; head model partitioning; human heads; human muscles; human visual speech; proprietary system; standard FAP sequences; Biological system modeling; Decoding; Face; Facial animation; Financial advantage program; Humans; MPEG 4 Standard; Muscles; Speech; Streaming media;
Conference_Titel :
Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-8186-8821-1
DOI :
10.1109/ICIP.1998.723706
