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improved single video object rate control for mpeg-4   
摘  要:   Rate control plays a central role in constant bit-rate (CBR) video coding applications using MPEG-4. The paper considers single video object (SVO) rate control for MPEG-4 and presents a new rate control algorithm based on the quadratic rate-distortion model. Based on a new measure for the encoding complexity, the constraints of the model parameter estimation and a novel quantizer control strategy are proposed. Simulation results show that the MPEG-4 coder, using the proposed algorithm, can achieve a higher PSNR than a coder using the conventional rate control algorithm.
发  表:   International Conference on Acoustics, Speech, and Signal Processing  2003

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