Title :
Low complexity multiple description coding method for wireless video
Author :
Wang, Yangli ; Wu, Chengke
Author_Institution :
Xidian Univ., Xi´´an, China
Abstract :
In this paper, we present a new multiple description video coding method. It starts from GOB alternation to create two descriptions for each frame encoded, carriage of motion information in both descriptions helps to improve the quality of single channel reconstruction, and a process called low quality macroblock update helps to not only further improve the quality of single channel reconstruction but also reduce the mismatch between the encoder and decoder. The advantages of the proposed approach include: effectiveness, which has better performance than the well known MDTC video coder both in terms of redundancy rate distortion, and in the packet loss scenario; low complexity, and standard compliant to the extent that each description can be decoded by a standard video decoder.
Keywords :
computational complexity; data compression; decoding; video coding; GOB alternation; MDTC video coder; low complexity multiple description coding; low quality macroblock update; multiple description video coding; packet loss scenario; redundancy rate distortion; single channel reconstruction; standard video decoder; wireless video; Code standards; Decoding; Discrete cosine transforms; Internet; Performance loss; Propagation losses; Rate-distortion; Robustness; Video coding; Video compression; GOB Alternation; Low Quality Macroblock Update; Multiple Description;
Conference_Titel :
Advanced Information Networking and Applications, 2005. AINA 2005. 19th International Conference on
Print_ISBN :
0-7695-2249-1
DOI :
10.1109/AINA.2005.237