1 January 2005 Video data reduction with error resilience based on macroblock reorder
Author Affiliations +
J. of Electronic Imaging, 14(1), 013008 (2005). doi:10.1117/1.1868001
We present a new technique to improve the video compression ratio. In this technique, macroblock data are reordered in such a way that one block includes the important data of a macroblock, while the other three data blocks hold difference values in the horizontal, vertical, and diagonal directions. This results in reduced bit stream size because of low-valued data in the three blocks, giving a higher compression ratio. The proposed method can be easily used for error resilience applications as well. In that case, the important data block in a macroblock is transmitted on a secure channel while the remaining three blocks with difference data are sent via a lossy channel. In the case of an error in the lossy channel, the picture can still be reconstructed with a reasonably good quality using the block that contains important data transmitted on the secure channel. The proposed method generates better reconstruction quality when used at low bit rates.
Tanzeem Muzaffar, TaeSun Choi, "Video data reduction with error resilience based on macroblock reorder," Journal of Electronic Imaging 14(1), 013008 (1 January 2005). https://doi.org/10.1117/1.1868001


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