TY - GEN
T1 - Rate-distortion modeling and its application to quality layer assignment in SVC/H. 264 fine-granular snr scalable videos
AU - Sun, Jun
AU - Gao, Wen
AU - Zhao, Debin
PY - 2007
Y1 - 2007
N2 - To support efficient quality extraction in H. 264/AVC-based scalable video coding, it's important to obtain the rate-distortion (R-D) or distortion-rate (D-R) function of each FGS packet. In this paper, firstly, we analyze the sub-bitplane technology of SVC FGS coding, and conclude the MSE-based D-R function should be linear within a FGS layer, which also explains the slow-start phenomena of PSNR-based D-R function. Consequently, a piece-wise linear model is proposed to describe the no-drift R-D function of FGS EL. Secondly, considering both the picture prediction structure and the reference picture correlation, we investigate the SVC drift of hierarchical B pictures and propose a simple and effective distortion model to estimate the reconstructed frame distortion with drift. At last, based on above analysis and models, a new model-based quality layer assignment algorithm is proposed to achieve equivalent coding efficiency as the SVC test model with significantly reduced complexity.
AB - To support efficient quality extraction in H. 264/AVC-based scalable video coding, it's important to obtain the rate-distortion (R-D) or distortion-rate (D-R) function of each FGS packet. In this paper, firstly, we analyze the sub-bitplane technology of SVC FGS coding, and conclude the MSE-based D-R function should be linear within a FGS layer, which also explains the slow-start phenomena of PSNR-based D-R function. Consequently, a piece-wise linear model is proposed to describe the no-drift R-D function of FGS EL. Secondly, considering both the picture prediction structure and the reference picture correlation, we investigate the SVC drift of hierarchical B pictures and propose a simple and effective distortion model to estimate the reconstructed frame distortion with drift. At last, based on above analysis and models, a new model-based quality layer assignment algorithm is proposed to achieve equivalent coding efficiency as the SVC test model with significantly reduced complexity.
KW - Drift analysis
KW - FGS
KW - H. 264/AVC
KW - Quality layer
KW - Rate-distortion model
KW - SVC
UR - https://www.scopus.com/pages/publications/84898060451
M3 - 会议稿件
AN - SCOPUS:84898060451
SN - 9789898109057
T3 - PCS 2007 - 26th Picture Coding Symposium
BT - PCS 2007 - 26th Picture Coding Symposium
T2 - 26th Picture Coding Symposium, PCS 2007
Y2 - 7 November 2007 through 9 November 2007
ER -