Error detection and correction using the correlation of the parameters in MPEG-2 video bitstream

Dong-Hwan Choi; Sang-Hak Lee; Chan-Sik Hwang

doi:10.1117/12.455684

10 December 2002 Error detection and correction using correlation of parameters in MPEG-2 video bitstream

Dong-Hwan Choi, Sang-Hak Lee, Chan-Sik Hwang

Proceedings Volume 4861, Multimedia Systems and Applications V; (2002) https://doi.org/10.1117/12.455684
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

A new error detection and correction method is proposed that relies on the correlations among the syntax parameters of an MPEG-2 bitstream. Since MPEG-2 has led to a variety of applications, the MPEG-2 video specification is quite flexible. The header parameters in a video-coding standard are very important, as the syntax elements, tables, and decoding processes all depend on the values of the header information. Therefore, transmission errors in the header information not only result in a serious visual degradation of the output video, but also cause an abnormal decoding process. A number of error detection and correction techniques have already been developed to recover the MPEG-2 visual quality. However, since most of these methods only consider macroblock data information including quantized DCT coefficients, they are unable to produce good results with videos that include errors in the header information. Accordingly, the current paper proposes a method for detecting and correcting bit errors in headers based on the correlations between header parameters, between consecutive pictures, and between macroblock data and header parameters. As a result, even if bit errors are generated in header parameters, which are crucial to successful decoding, experimental results showed that the proposed header error detection and correction method can improve the video quality without increasing the transmission bit rate.

Citation Download Citation

Dong-Hwan Choi, Sang-Hak Lee, and Chan-Sik Hwang "Error detection and correction using correlation of parameters in MPEG-2 video bitstream", Proc. SPIE 4861, Multimedia Systems and Applications V, (10 December 2002); https://doi.org/10.1117/12.455684

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