Joint quality-temporal (Q-T) bit allocation for H.264/SVC
A joint quality-temporal (Q-T) bit allocation scheme is proposed for H.264/SVC in this work. First, rate and distortion (R-D) models for dependent quality layers are derived, where the complex inter-layer dependency is considered. Then, the joint Q-T bit allocation problem is formulated as an optimization problem using the Lagrange method and solved numerically with the derived R-D models. As a result, we develop a low-complexity bit allocation scheme for the joint Q-T scalability of H.264/SVC. It is demonstrated by experimental results that the new R-D models results in a highly efficient bit allocation scheme, which outperforms the JSVM benchmark by a significant margin.