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Improved error detection and localization techniques for MPEG-4 video

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3 Author(s)
Bansal, P. ; Sasken Commun. Tech. Ltd., Bangalore, India ; Narendran, M.R. ; Murali, M.N.K.

Recently, the growth in mobile communication and Internet usage has lead to an increase in demand for robust transmission of compressed video over error prone channels. The quality of decoded video in an erroneous environment depends on efficient detection, localization and concealment of errors. In fact, the role of error detection and localization is very important because undetected erroneous macroblocks may not be concealed and correct macroblocks may be termed as erroneous. Given these challenges, MPEG-4 has emerged as a powerful video standard for transmission over a lossy transmission channel due to its error resilience tools and compression efficiency. We propose improved methods for error detection and localization using syntactic, semantic and statistical consistency methods in MPEG-4. Also, the improvements are suggested for spatial error concealment techniques in intra-frames.

Published in:

Image Processing. 2002. Proceedings. 2002 International Conference on  (Volume:2 )

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