High-definition video coding with super-macroblocks

Siwei Ma; C.-C. Jay Kuo

doi:10.1117/12.707582

29 January 2007 High-definition video coding with super-macroblocks

Siwei Ma, C.-C. Jay Kuo

Proceedings Volume 6508, Visual Communications and Image Processing 2007; 650816 (2007) https://doi.org/10.1117/12.707582
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

A high definition video coding technique using super-macroblocks is investigated in this work. Our research is motivated by the observation that the macroblock-based partition in H.264/AVC may not be efficient for high definition video since the maximum macroblock size of 16 x 16 is relatively small against the whole image size. In the proposed super-macboblock based video coding scheme, the original block size MxN in H.264 is scaled to 2Mx2N. Along with the super-macroblock prediction framework, a low-complexity 16 x 16 discrete cosine transform (DCT) is proposed. As compared with the 1D 8 x 8 DCT, only 16 additions are added for a 1D 16 points 16 x 16 DCT. Furthermore, an adaptive scheme is proposed for the selection the best coding mode and best transform size. It is shown by experimental results that the super-macroblock coding scheme can achieve a higher coding gain.

Citation Download Citation

Siwei Ma and C.-C. Jay Kuo "High-definition video coding with super-macroblocks", Proc. SPIE 6508, Visual Communications and Image Processing 2007, 650816 (29 January 2007); https://doi.org/10.1117/12.707582

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