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Journal of Electronic Imaging

Video data reduction with error resilience based on macroblock reorder
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Paper Abstract

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.

Paper Details

Date Published: 1 January 2005
PDF: 7 pages
J. Electron. Imaging. 14(1) 013008 doi: 10.1117/1.1868001
Published in: Journal of Electronic Imaging Volume 14, Issue 1
Show Author Affiliations
Tanzeem Muzaffar, Gwangju Institute of Science and Technology (South Korea)
TaeSun Choi, Gwangju Institute of Science and Technology (South Korea)

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