Title :
Error-resilient transmission of H.264/AVC streams using flexible macroblock ordering
Author :
Thomos, Nikolaos ; Argyropoulos, S. ; Boulgouris, N.V. ; Strintzis, M.G.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Thessaloniki, Thessaloniki, Greece
fDate :
Nov. 30 2005-Dec. 1 2005
Abstract :
We present a novel scheme for the transmission of H.264/AVC video streams over packet loss networks. The proposed scheme exploits the error resilient features of H.264/AVC codec and employs Reed-Solomon codes to protect effectively the streams. A novel technique for adaptive classification of macroblocks into three slice groups using Flexible Macroblock Ordering is also proposed. The optimal classification of macroblocks and the optimal channel rate allocation are achieved by iterating two interdependent steps by means of dynamic programming techniques. Simulations clearly demonstrate the superiority of the proposed method over other recent algorithms for transmission of H.264/AVC streams.
Keywords :
Reed-Solomon codes; dynamic programming; image classification; video coding; video streaming; H.264/AVC video streams; Reed-Solomon codes; adaptive classification; dynamic programming; error resilient feature; error-resilient transmission; flexible macroblock ordering; macroblock classification; optimal channel rate allocation; packet loss networks;
Conference_Titel :
Integration of Knowledge, Semantics and Digital Media Technology, 2005. EWIMT 2005. The 2nd European Workshop on the (Ref. No. 2005/11099)
Conference_Location :
London
Print_ISBN :
0-86341-595-4