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Erschienen in:
2014 | OriginalPaper | Buchkapitel
A New Bit-Rate Control Algorithm for H.264 on the Basic Unit Layer
verfasst von : Huo-sheng Li, Zhi-wei Tang, Hai-lang Huang, Bo Zhao, Li Bin
Erschienen in: Future Information Technology
Verlag: Springer Berlin Heidelberg
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In the paper, we focus on the H.264’s Bit-Rate control algorithm and propose a new method based on the basic unit layer. The MAD prediction of basic unit in G012 scheme exist larger deviation from the actual MAD value, which may be induce the performance degradation of the rate controlling. In order to reduce the prediction error, we give a self-adaption algorithm based on the spatial and the temporal correlation. Experimental results demonstrate the proposed algorithm can predict MAD more accurately. Compared with the classic G012 algorithm, the PSNR gain of the proposed method can be up to 0.08db at most.