A New Framework for Fine Granularity Scalability Video Coding in AVS.

Abstract: Fine scalable video coding is a common method for video quality scalable of H264 and MPEG-4, but it has not been used on AVS as yet. This paper presents a new algorithm of fine granularity scalability based on AVS. The DCT residue coefficients of the FGS enhancement layer proposed in this paper are firstly scanned by zigzag and then scaled with the energy distribution characteristic of frequency domain. Then, the scalable coefficients are coded by bit-plane coding and Exp-Golomb coding. Finally, we simulate the algorithm on the software codec model version rm52k of AVS-P2. The experimental results show that the ameliorated scalable coding method can improve the coding efficiency obviously compared with the original FGS in terms of average PSNR. [Copyright &y& Elsevier]