Single pass dependent bit allocation for spatial scalability coding of H.264/SVC

This paper investigates the problem of bit allocation for spatial scalability coding of H.264/SVC. Little prior work deal with the H.264/SVC bit allocation problem considering the correlation between the enhancement and base layers. Nevertheless, most of the bit allocation algorithms suffer from high computational complexity which grows significantly with the number of layers. In this paper, a single-pass spatial layer bit allocation algorithm, based on dependent Rate-Distortion modeling is proposed. In this algorithm, the R-D model parameters are adaptively updated during the coding process. Experimental results demonstrate that the proposed algorithm achieves a significant improvement in the coding gain as compared to the multi-pass model-based algorithm and the Joint Scalable Video Model reference software algorithm.