Title :
Improved Motion Vector Recovery in Temporal Error Concealment for H.264/AVC Decoder
Author :
Yang, Wenjie ; Liu, Xingang ; Sun, Chao
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In unreliable communication environment, an efficient motion vector (MV) recovery method is proposed in this paper for video temporal error concealment (TEC) with H.264/AVC standard in order to provide better quality. To increase the accuracy, 4´4 block size is regarded as the basic operation unit in the proposal. Furthermore, the detailed processing procedures of the proposed algorithm for 3 packet loss cases which happen frequently are separately discussed. Simulation results show that the proposed algorithm could achieve better subjective and objective qualities compared with the existing temporal EC algorithms. It is fast and pervasive to be used in multimedia communication systems with H.264/AVC coding standard.
Keywords :
image motion analysis; video coding; AVC decoder; H.264 decoder; MV; TEC; improved motion vector recovery; multimedia communication systems; objective qualities; subjective qualities; video temporal error concealment; Accuracy; Encoding; PSNR; Standards; Video coding; H.264/AVC; Mean Shift; Temporal Error Concealment;
Conference_Titel :
Computer and Information Technology (CIT), 2012 IEEE 12th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-4873-7
DOI :
10.1109/CIT.2012.76
