Study on the distribution of DCT residues and its application to R-D analysis of video coding
Journal of Visual Communication and Image Representation
Adaptive video coding control for real-time H.264/AVC encoder
Journal of Visual Communication and Image Representation
Efficient one-pass frame level rate control for H.264/AVC
Journal of Visual Communication and Image Representation
An Efficient MB Layer Rate Control for H.264/AVC Based on Adaptive QP Decision
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Improved MB-layer rate control for H.264/AVC
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
An improved method for initializing quantization parameter in h.264 rate control
IScIDE'11 Proceedings of the Second Sino-foreign-interchange conference on Intelligent Science and Intelligent Data Engineering
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This paper points out some defects in the techniques used in H.264 rate control and presents several new algorithms to improve them. The improved algorithm has the following main features: 1) the bits allocated to each P-frame is proportional to the local motion in it, i.e, more bits are allocated to a frame if the local motion in it is stronger; 2) the quantization parameter for I-frame is choosed based on a new bits allocation scheme for I-frame; 3)the quantization parameter calculation is based on a simple encoding complexity prediction scheme, which is more robust and of less complexity than the quadratic model used by H.264 in low bit rate video coding. Experimental results and analysis show that the improved rate-control scheme has significantly increased the average peak signal-to-noise ratio up to 1.53 dB, reduced the variation of buffer level, improved the perpetual quality of the reconstructed video and reduced the computation complexity.