Performance analysis of error concealment algorithms for MPEG-2 video

Authors:
Yuk Ying Chung;Siqi Li;Xiaoming Chen;Changseok Bae
Affiliations:
School of Information Technologies, University of Sydney, NSW, Australia;School of Information Technologies, University of Sydney, NSW, Australia;School of Information Technologies, University of Sydney, NSW, Australia;Post-PC Research Group, ETRI, Daejeon, Korea
Venue:
MUSP'06 Proceedings of the 6th WSEAS international conference on Multimedia systems & signal processing
Year:
2006

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Abstract

In this paper, three derivations of linear frequency concealments were simulated and compared. These three Error Concealment (EC) algorithms use linear frequency re-interpolation. We have implemented and compared different numbers of neighboring blocks involved during the re-interpolation. These three error concealments are Previous Coded Block Linear Error Concealment (PCB-EC), Four Neighbors Linear Error Concealment (4N-EC) and Eight Neighbors Linear Error Concealment (8N-EC). The results show that 4NEC algorithm can achieve the best performance and have PSNR increment by 8.2dB after recovery while other algorithms can only improve 1-2dB after recovery.