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International Conference on Digital Telecommunications (ICDT'06)
Converting MPEG-2 8-tap discrete cosine transform (DCT) coefficients to H.264/AVC 4-tap integer transform (IT) coefficients is one of the indispensable operations for transcoding MPEG-2 to H.264 in the transform domain. Motion information in the input MPEG-2 sequence should be reused as much as possible to speed up the transcoding process. Motivated by this, we first exploits the distribution information of non-zero DCT coefficients to classify the input 8 8 DCT block into three types, thendoi:10.1109/icdt.2006.4 fatcat:dx6kptj6lncklpldlimoomgjim