Title :
Complexity scalable MPEG-2 to WMV transcoder with adaptive error compensation
Author :
Shen, Guobin ; He, Yuwen ; Cao, Wanyong ; Li, Shipeng
Author_Institution :
Microsoft Res. Asia, Beijing
Abstract :
In this paper, we study the problem of video transcoding from MPEG-2 to WMV format, together with several desired functionalities such as bit rate reduction etc. We propose two architectures (for different typical application scenarios) that are unique in their complexity scalability and adaptive drifting error control, which in return provide a mechanism to achieve desired trade-off between the complexity and the quality. A simple model-based rate control algorithm is also presented. We performed extensive experiments for various design targets such as complexity scalability, performance tradeoff, drifting control effect etc. The proposed transcoding architectures can be straightforwardly applied to the MPEG-2 to MPEG-4 transcoding applications due to the significant overlap between the MPEG-4 and WMV coding technology
Keywords :
computational complexity; error compensation; error correction; video coding; MPEG-2 coding; MPEG-4 coding; WMV coding; adaptive drifting error control; adaptive error compensation; video transcoding; Asia; Bit rate; Error compensation; Error correction; Helium; MPEG 4 Standard; Motion compensation; Motion control; Scalability; Transcoding;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692934