Rate control based on linear regression for H.264/MPEG-4 AVC
Image Communication
Adaptive rate control algorithm for low power video coding systems
Multidimensional Systems and Signal Processing
Study on the distribution of DCT residues and its application to R-D analysis of video coding
Journal of Visual Communication and Image Representation
Frame-layer rate control algorithm for multi-view video coding
Proceedings of the first ACM/SIGEVO Summit on Genetic and Evolutionary Computation
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
A frame-layer rate control algorithm for h.264 using rate-dependent mode selection
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
Rate control scheme for video coding using low-memory-cost look-up table
PSIVT'06 Proceedings of the First Pacific Rim conference on Advances in Image and Video Technology
A new macroblock-layer rate control for H.264/AVC using quadratic r-d model
PSIVT'06 Proceedings of the First Pacific Rim conference on Advances in Image and Video Technology
Reduced frame quantization in video coding
VLBV'05 Proceedings of the 9th international conference on Visual Content Processing and Representation
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This paper discusses some practical issues in implementing the MPEG-4 Q2 rate-control scheme, and proposes a number of ways to improve it. The improved algorithm has the following main features: (1) the bits allocated to each P-frame or B-frame are in proportion to its distance from the end this GOP. i.e., more bits are allocated to the frames that are nearer to their reference I-frame; (2) the target buffer level is a function of the frame position in the GOP, so that it will be achieved gracefully at the end of a GOP; and (3) the quantization value of an I-frame is decided based on its spatial complexity. Experimental results show that the improved rate-control scheme has significantly reduced the occurrence of frame skipping, increased the average PSNR by up to 0.6 dB, and improved the perceptual quality of the reconstructed video.