Theoretic Analysis of Inter Frame Dependency in Video Coding

Authors:
Yue Wang;Jun Sun;Siwei Ma;Wen Gao
Affiliations:
Graduate University of Chinese Academy of Sciences, Beijing, China 100080;Institute of Digital Media, School of Electronic Engineering and Computer Science, Peking University, Beijing, China 100871;Institute of Digital Media, School of Electronic Engineering and Computer Science, Peking University, Beijing, China 100871;Institute of Digital Media, School of Electronic Engineering and Computer Science, Peking University, Beijing, China 100871
Venue:
PCM '08 Proceedings of the 9th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Year:
2008

Citing 2
Cited 0

Efficient Bit Allocation for Dependent Video Coding

DCC '04 Proceedings of the Conference on Data Compression
Bit-rate control using piecewise approximated rate-distortion characteristics

IEEE Transactions on Circuits and Systems for Video Technology

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Abstract

In this paper, we present theoretic analysis of optimal bit allocation in prediction-based video coders. Usually, the optimal bit allocation is to minimize the sum of frame distortions under a total bit rate constraint. We use the Laplacian model to describe the distribution of DCT coefficients of residual frame and analyze the dependency between reference frame and predicted frame at different bit rates. Then we found that inter frame dependency will increase as bit rates decrease. Finally, based on this rule, we give some suggestions for rate allocation in practical video coding.