Joint block-based video source/channel coding for packet-switched networks

Raynard O. Hinds; Thrasyvoulos N. Pappas; Jae S. Lim

doi:10.1117/12.298322

9 January 1998 Joint block-based video source/channel coding for packet-switched networks

Raynard O. Hinds, Thrasyvoulos N. Pappas, Jae S. Lim

Proceedings Volume 3309, Visual Communications and Image Processing '98; (1998) https://doi.org/10.1117/12.298322
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

Abstract

Block-based video coders rely on motion compensated block prediction for more data compression. With the introduction of video coding over packet-switched networks such as the Internet and the resulting packet loss that occurs on congested networks, coding mode selection for each macro- block is significant in determining the overall distortion on the decoded video sequence. In this work, we examine the problem of mode selection for macro-blocks in the presence of loss and a channel rate constraint. We present and evaluate several methods for mode selection that attempt to minimize perceptual distortion from packet loss. We formulate a simplified problem which is useful for gaining some insight, and present an efficient algorithm to finding an optimal solution.

Citation Download Citation

Raynard O. Hinds, Thrasyvoulos N. Pappas, and Jae S. Lim "Joint block-based video source/channel coding for packet-switched networks", Proc. SPIE 3309, Visual Communications and Image Processing '98, (9 January 1998); https://doi.org/10.1117/12.298322

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