TY - GEN
T1 - Coding face at very low bit rate via visual face tracking
AU - Tu, Jilin
AU - Wen, Zhen
AU - Tao, Hai
AU - Huang, Thomas
PY - 2003
Y1 - 2003
N2 - Facial expressions convey very important information which is sometimes indispensable for people to fully understand the speech during communication. When the volume of video data is overwhelming and channel resources are limited, very low bit rate video coding becomes a solution for teleconferencing. In this paper, we propose an efficient and robust very low bit rate face coding method via visual face tracking. After the face is located in the video frame, the generic facial geometric model is adapted to the face, and facial texture for the model is extracted from the first frame of the video. The facial motion is then tracked and synthesized. The facial motion parameters, synthesized residual error and video background are transmitted at very low bit rate. Experiments show that our method can achieve better PSNR around facial area than H.26L at about the same low bit rate and have better subjective visual effects.
AB - Facial expressions convey very important information which is sometimes indispensable for people to fully understand the speech during communication. When the volume of video data is overwhelming and channel resources are limited, very low bit rate video coding becomes a solution for teleconferencing. In this paper, we propose an efficient and robust very low bit rate face coding method via visual face tracking. After the face is located in the video frame, the generic facial geometric model is adapted to the face, and facial texture for the model is extracted from the first frame of the video. The facial motion is then tracked and synthesized. The facial motion parameters, synthesized residual error and video background are transmitted at very low bit rate. Experiments show that our method can achieve better PSNR around facial area than H.26L at about the same low bit rate and have better subjective visual effects.
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M3 - Conference contribution
AN - SCOPUS:0344466703
SN - 2726112420
T3 - Picture Coding Symposium
SP - 301
EP - 304
BT - Picture Coding Symposium
T2 - Picture Coding Symposium
Y2 - 23 April 2003 through 25 April 2003
ER -