This paper focuses on the problem of video transmission over the emerging high-speed asynchronous networks. A video coder that achieves a good quality/throughput/complexity compromise is proposed. Moreover, this coder is hierarchized and has a variable bit rate, which provides good characteristics for transmission over asynchronous transfer mode networks. After a brief discussion of flow control techniques for high-speed networks, a specific implementation of the leaky-bucket mechanism is introduced. An adaptive version of this algorithm is then presented. The behavior of the adaptive leaky bucket loaded with the output of a compressed video source is discussed. We show how a simple modification of the leaky bucket permits the use of this flow-control technique to regulate a compressed video source.
By: P. Scotton, C. Galand and J. Menez
Published in: RZ2958 in 1997
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