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Fast and memory efficient algorithm for DCT-domain inverse motion compensation of low bitrate video

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2 Author(s)
Chen, W. ; Epson Palo Alto Lab., CA, USA ; Vasudev, B.

We implement a complete compressed domain video decoding pipeline that is optimized for both fast and memory efficient decoding. We combine fast DCT-domain inverse motion compensation algorithms with memory compression methods that take advantage of the sparse number of nonzero DCT coefficients within a coded block. We integrate these into an H.263 and MPEG-4 simple profile video decoder. We measure the performance of our video decoder along three dimensions: computational complexity, memory efficiency, and PSNR.

Published in:

Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on  (Volume:1 )

Date of Conference:

2002

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