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This paper presents an improved update operator for H.264 scalable extension, which is a new joint standardization effort of ISO/IEC and ITU-T. Energy Distributed Update (EDU)  is utilized to reduce decoder complexity. The relationship between EDU and the optimum update in  is revealed. Moreover, for the constrained motion-compensated lifting structure employed in H.264 scalable extension, we derive a set of new update coefficients to improve coding performance based on distortiondoi:10.1109/mmsp.2005.248637 dblp:conf/mmsp/ChenXWX05 fatcat:lddp6d2yjbdnrddqngm3uswxqi