Converting DCT coefficients to H.264/AVC transform coefficients
PCM'04 Proceedings of the 5th Pacific Rim Conference on Advances in Multimedia Information Processing - Volume Part II
Manipulation and compositing of MC-DCT compressed video
IEEE Journal on Selected Areas in Communications
Introduction to the special issue on the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
Low-complexity transform and quantization in H.264/AVC
IEEE Transactions on Circuits and Systems for Video Technology
Requantization transcoding for H.264/AVC video coding
Image Communication
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The bandwidth saving of H.264 compared with MPEG-2 provides a big motivation to migrate to H.264, and this inspires the research on MPEG-2 to H.264 transcoding. We proposed two fast algorithms for MPEG-2 to H.264 transcoding in DCT domain. The first one synthesizes a H.264 integer DCT block for motion compensation from four intersected integer DCT blocks using only a few additions and shift operations. The second algorithm shows our rapid solution on dealing with the difference of scale in the integer DCT domain before and after the quantization procedure and replace the division operations with multiplications and shift operations. They are very useful in MPEG to H.264 DCT domain transcoder designing, especially for embedded RISC processors.