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A Novel Rate Control Initialization Algorithm for H.264
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DOI：10.1109/TCE.2009.5174437.png)
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Abstract
En 中文
This paper presents a novel rate control initialization algorithm for H.264. Firstly the first instantaneous decoding refresh frame in a video sequence is intra-coded to get the mean absolute difference (MAD) value, then the average MAD value of the second, third and fourth frames which are inter-coded is computed, finally the initial quantization parameter is determined depending on the bits per pixel and the two MAD values. When compared with the algorithm JVT-G012 [4] which is the current recommended algorithm implemented in the H.264 reference software JM13.0 and the algorithm [5], the proposed algorithm can increase the average peak signal-to-noise ratio of reconstructed video by tip to 1.241 dB and 1.262 dB, respectively(1).
Keywords:
rate control initialization
H.264
mean absolute difference
quantization parameter
peak signal-to-noise ratio
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10.9
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5.1K
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