Logo insertion in MPEG transcoder

@inproceedings{Panusopone2001LogoII,
  title={Logo insertion in MPEG transcoder},
  author={Krit Panusopone and Xuemin Chen and Fan Ling},
  booktitle={ICASSP},
  year={2001}
}
Various studies [1,2] show that a basic architecture of MPEG2 transcoder consists of a cascaded decoder/encoder, shown in Figure 6. Such a transcoder re-uses the motion vectors (MVs) and minimizes the changes of macroblock (MB) mode. One interesting feature that can be added on this type of transcoder is to insert a translucent logo into the transcoded bit-stream. 

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