An efficient H.264 based fine-granular-scalable video coding system

TitleAn efficient H.264 based fine-granular-scalable video coding system
Publication TypeConference Paper
Year of Publication2005
AuthorsUgur, K., P. Nasiopoulos, and R. Ward
Conference NameSignal Processing Systems Design and Implementation, 2005. IEEE Workshop on
Pagination399 - 402
Date Publishednov.
Keywordsdata compression, discrete cosine transform, discrete cosine transforms, H.264 based fine-granular-scalable video coding system, integer transform, video broadcasting, video codecs, video coding

H.264, with its superior coding efficiency and network friendly design, has emerged as the newest international video standard and is expected to become the preferred codec for video broadcasting. Presently, there is an effort to add scalability to H.264, in order to offer a solution to network congestion and bandwidth variations. Proposals range from scalable subband extension to introduction of FGS to the H.264 standard. We propose a novel structure for the FGS layer that uses 4 times;4 integer transform, instead of 8 times;8 discrete cosine transform (DCT), so that the same transform is used for both layers. We also propose a novel hierarchical algorithm to code macroblock header of FGS layer that uses less bits than the standard FGS algorithm and significantly increases the coding efficiency. When compared with the original FGS structure, the proposed structure uses 70% less bits for macroblock headers, has less complexity and has an increased PSNR of 0.7 dB on average.


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