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An New Coefficients Transform Matrix for the Transform Domain MPEG-2 TO H.264/AVC Transcoding

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An New Coefficients Transform Matrix for the Transform Domain MPEG-2 TO H.264/AVC Transcoding
In this paper, a fast transform method is proposed to convert MPEG-2 8-tap discrete cosine transform (DCT) coefficients to H.264/AVC 4-tap integer transform coefficients directly in the transform domain. The proposed transform method saves 16 operations for each 8 8 DCT block by utilizing a novel transform kernel matrix and a fast computing method for multiplication of this new matrix. The simulation results show that the proposed method causes only a very little quality degradation, which is completely negligible in practice with the maximum value lower than 8 10 3 dB, as compared with Jun Xin’s method. Hence, it can be efficiently used in the transform-domain MPEG-2 to H.264 transcoding.
Gao Chen, Shouxun Lin, Yongdong Zhang, Gang Cao
Added 11 Jun 2010
Updated 11 Jun 2010
Type Conference
Year 2006
Where ICMCS
Authors Gao Chen, Shouxun Lin, Yongdong Zhang, Gang Cao
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