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Multimedia applications such as video streaming and mobile TV are emerging as the most promising applications over wireless networks. The increased coding efficiency and network friendly architecture of the latest video coding standard H.264/AVC has facilitated the delivery of coded video content to wireless users. However, wireless networks allow lower transmission bit-rates than wired networks while...
Implementing MPEG-2 to H.264 transcoding schemes in the pixel domain introduces a high degree of computational complexity. In the transform domain, this transcoding is more computationally efficient, and several methods have been developed to address that approach. However, incompatibilities between the two standards, such as the mismatches between the MPEG-2 and H.264 motion compensation processes,...
During transcoding, the coefficients have to pass through another quantization step. This introduces re-quantization errors to the coefficients. H.264 integer transform and quantization features are different from those of MPEG2 and other standards. Based on these features, in MPEG2 to H.264 transcoding, an efficient algorithm that measures the re-quantization error is proposed. Then this measured...
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