Optimum bit allocation and rate control for H.264/AVC

Authors:
Wu Yuan;Shouxun Lin;Yongdong Zhang;Wen Yuan;Haiyong Luo
Affiliations:
Inst. of Comput. Technol., Chinese Acad. of Sci., Beijing, China;-;-;-;-
Venue:
IEEE Transactions on Circuits and Systems for Video Technology
Year:
2006

Citing 0
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Optimizing the H.264/AVC Video Encoder Application Structure for Reconfigurable and Application-Specific Platforms

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Abstract

For the rate control of H. 264/AVC, one of the most important things is to get the statistics of the current frame accurately. To achieve this, a novel adaptive coding characteristics prediction scheme is presented to improve the accuracy of R-D modeling, by exploiting spatio-temporal correlations. With the proposed prediction scheme, we present a novel rate function and a linear distortion model, and then deduce a simple close-form solution to the problem of optimum bit allocation, just in a TMN-8-alike way. Extensive experiments show that improvements with gains up to 0.92dB per frame over JVT-G012, the current standardized rate control scheme, are achieved by the proposed scheme for a variety of test sequences with less demanding bandwidth.