An analytical framework for frame-level dependent bit allocation in hybrid video coding

In this paper, an analytical framework for frame-level dependent bit allocation (DBA) in hybrid video coding is proposed. First, the dependency of neighboring frames is quantitatively measured with the proposed inter-frame dependency model (IFDM). Based on the proposed IFDM, the problem of frame-level DBA among a number of frames of different frame types is studied, and the optimal solution is achieved through successive convex optimization. The prove the validity of the proposed framework, a case study of current state-of-the-art standard H.264/AVC is conducted. Experimental results show that significant gain of up to 0.9dB in PSNR can be obtained.