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Efficient intra refreshment and synchronization algorithms for robust transmission of video over wireless networks

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3 Author(s)
Kyeong Ho Yang ; Lucent Technol. Bell Labs, Holmdel, NJ, USA ; Dong Wook Kang ; Faryar, A.

This paper proposes efficient intra refreshment and packetization algorithms to enhance error resilience of video coding systems for wireless applications. We attack the two problems separately to alleviate the computational burden, instead of jointly optimizing them. We first enhance error resilience of intra/inter coding mode selection by introducing new cost functions for the two coding modes, and then optimize the placement of synchronization markers by incorporating data partitioning and error concealment at the decoder in the rate-distortion optimization procedure. Experiments show that the proposed techniques in conjunction with the MPEG4 standard (Simple Profile) provide significant improvements in the error resilience performance

Published in:

Image Processing, 2001. Proceedings. 2001 International Conference on  (Volume:1 )

Date of Conference:

2001

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