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Video data reduction with error resilience based on macroblock reorder

[+] Author Affiliations
Tanzeem Muzaffar, Tae-Sun Choi

Kwangju Institute of Science and Technology, SIPL, Mechatronics Department, 1 Oryong Dong, Buk Gu, Kwangju 500-712, Korea E-mail: tschoi@kjist.ac.kr

J. Electron. Imaging. 14(1), 013008 (Mar. 1, 2005). doi:10.1117/1.1868001
History: Received Apr. 11, 2003; Revised Sep. 17, 2003; Accepted Jun. 18, 2004; Mar. 1, 2005; Online March 01, 2005
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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. © 2005 SPIE and IS&T.

© 2005 SPIE and IS&T

Citation

Tanzeem Muzaffar and Tae-Sun Choi
"Video data reduction with error resilience based on macroblock reorder", J. Electron. Imaging. 14(1), 013008 (Mar. 1, 2005). ; http://dx.doi.org/10.1117/1.1868001


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