Xiaowei Song, Yu Liu, Qinggang Meng, Jianfu Teng, Guiling Li
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A new method of selective enhancement for MPEG-2 to MPEG-4 FGS transcoding
AJter comparison and anal,vsis ofthree di@rent traiiscoding architectures, we suggested a more eJj;cient stiwcture/iir MPEG-2 to MPEG-4 FGS tronscoding. We also solved iiicompatible problem caiised Iiy the diffirence.s between the two standards and provided a new method of Selective Eiihot7cement hmed on the MV vahres. In oddition, two Freeyirenp Weigliting matrices are emnploved to utilize the significance d$f&ence.s among the DCT coefficients. Using these tecl7nulugie.~ 01 the MPEG-2 to MPEG-4 FGS transcoding. goodper:jorniance hus been achieved I. Index Terms Transcoding, MPEG-4, FGS
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