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A New Error Concealment Based on Edge Detection  

Yang, Yo-Jin (Department of Computer Science and the Information & Telecommunication Research Institute, Chonnam National University)
Son, Nam-Rye (Department of Computer Science, Chonnam National University)
Lee, Guee-Sang (Department of Computer Science and the Information & Telecommunication Research Institute, Chonnam National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.39, no.6, 2002 , pp. 623-629 More about this Journal
Abstract
In transmitting compressed video bit-stream over Internet, packet losses cause error propagations in both spatial and temporal domains, which in turn leads to severe degradation I image quality. In this paper, a new error concealment algorithm, called EBMA(Edge Detection based Boundary Matching Algorithm), is proposed to repair damaged portions of the video frames in the receiver. Conventional BMA(Boundary Matching Algorithm) assumes that the pixels on the boundary of the missing block and its neighboring blocks are very similar, but has no consideration of edges across the boundary. In our approach, the edges are detected across the boundary of the lost or erroneous block. Once the orientation of each edge is found, only the pixel difference along the expected edges across the boundary is measured instead of the calculation of difference along the expected edges across the boundary is measured instead of the calculation of differences between all adjacent pixels on the boundary Therefore, the proposed approach needs very few computations and the experiment shows and improvement of the performance over the conventional BMA in terms of both subjective and objective quality of video sequences.
Keywords
Error Conceal; Boundary Matching Algorithm; Modified BMA; Candidate Vector Sets; H.263;
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1 J.S.Hwang, D.K.Park, C.S.Won, J.C.Jung, and S.Y.Kim, A Concealment Algorithm Based on the Analysis of Transmission Errors or H.263 Bitstream, in Proceeding of the 1997 Korean Signal Processing conference Vol. 10, No.1, pp. 555-558, 1997
2 H.C.Shyu and J.J.Leou, Detection and Concealment of Transmission Errors in MPEG-2 Images A Genetic Algorithm Approach, IEEE Trans. Circuits Syst. Video Technol., Vol. 9, No. 6, pp. 937-948, Sept, 1999   DOI   ScienceOn
3 SungChan Park, NamRey Son, JungHyun Kim and GueeSang Lee 'Recovery of Motion Vectors by Detecting Homogeneous Movements for H.263 Video Communications', IEEE ICME2001, Tokyo, Japan, pp. 33-36, 2001   DOI
4 W.M. Lam, A.R. Reibman, and B.Lin, Recovery of Lost or Erroneously Received Motion Vectors, In Proc. ICASSP, 1993, Vol. 5, pp. 417-420   DOI
5 ISO/IEC13818-2:Information Technology Generic Coding of Moving Pictures and Associated Audio, Draft International Standard, March, 1994
6 ITU-T Recommendation H.263 Version 2, ITU-T SG-16, Video Coding for Low Bitrate Communication, Sept. 1997
7 J. W. Park, J. W. Kim and S. U. Lee, 'DCT Coefficients Recovery-Based Error Concealment Technique and Its Application to the MPEG-2 Bit Stream Error,' IEEE Trans. CSVT, vol. 7, no. 6, pp. 845-854, Dec. 1997   DOI   ScienceOn
8 Jian Feng, Kwok-Tung Lo and Hanssna Mehrpour, Error Concealment for MEPG Video Transmissions, IEEE Trans. Consumer Electronics, Vol. 43, No. 2, pp. 183-187, 1997   DOI   ScienceOn
9 Y.Wang, Qin-Fan Shu and Leonard Shaw, 'Maximally Smoothness Image RecoverY in Transform'Coding,' IEEE Trans. Commn., Vol.41, pp.1544-1551, Oct., 1993   DOI   ScienceOn