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30 October 1997 Adaptive two-layer MPEG-2 codec for video transmission over ATM
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Classical approaches of video scalability may produce some problems for medium or high cell loss ration and when traffic load on the transmission network is rapidly varying In this paper, the standard MPEG-2 video codec is modified to manage packet losses during the transmission over an ATM network. A layered coding scheme is adopted, which sues an adaptive data- partition method to generate two compressed video layers to be transmitted with different priority. The MPEG-2 slice structure of the upper layer is completely redefined and a new synchronization procedure between the two layers is introduced. The experimental results prove the superiority of the two-layer model with respect to the standard approach, particularly for increasing values of cell loss probability.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrea Garzelli, Alessandro Andreadis, Giuliano Benelli, and Massimo Cingottini "Adaptive two-layer MPEG-2 codec for video transmission over ATM", Proc. SPIE 3164, Applications of Digital Image Processing XX, (30 October 1997);

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