MPEG-4 simple profile transcoder for low-data-rate wireless applications

Jinwha Yang; Edward J. Delp III

doi:10.1117/12.453046

4 January 2002 MPEG-4 simple profile transcoder for low-data-rate wireless applications

Jinwha Yang, Edward J. Delp III

Proceedings Volume 4671, Visual Communications and Image Processing 2002; (2002) https://doi.org/10.1117/12.453046
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

A synchronization scheme that can specify the start position of each macroblock in a compressed video bitstream for low data rate wireless applications is proposed by extending the Error Resilient Entropy Coding (EREC) method. Our scheme is implemented in the form of a transcoder, placed before and after the channel, of a MPEG-4 Simple Profile bitstream. We compare our proposed technique using reconstructed video quality (measured in PSNR) and the length of the extra redundancy bits incurred by the transcoder with the error resilient tools of H.263⁺. A simple syntax-based codeword repair method is also proposed so that the transcoder generates a MPEG-4 compliant bitstream which can then be decoded with a standard MPEG-4 decoder such as MoMuSys (FDIS V1.0).

Citation Download Citation

Jinwha Yang and Edward J. Delp III "MPEG-4 simple profile transcoder for low-data-rate wireless applications", Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); https://doi.org/10.1117/12.453046

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