Prediction of bit rate sequences of encoded video signals (for ISDN)

A new approach for video traffic characterization (VTC) is proposed. In this approach, it is assumed that every video sequence is characterized by a set of fundamental indexes or parameters and that the bit rate process can be generated by a parametric model of the corresponding indices. Among the implications of this approach are: the encoding process is no longer necessary to simulate the bit rate process for a particular video sequence: a video sequence needs to be processed only once to obtain its fundamental parameters: and, in general, the computation of the index processes requires much less processing than the actual encoding. If parametric models are identified for all encoding algorithms of interest, then the problem of developing models for various combinations of encoders and classes of video sequences reduces to the problem of developing a single model for the index processes of various classes of video sequences.<
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