MPEG VBR slice layer model using linear predictive coding and generalized periodic Markov chains

We present an MPEG slice layer model for VBR encoded video using linear predictive coding (LPC) and generalized periodic Markov chains. Each slice position within an MPEG frame is modeled using an LPC autoregressive function. The selection of the particular LPC function is governed by a generalized periodic Markov chain; one chain is defined for each I, P, and B frame type. The model is sufficiently modular in that sequences which exclude B frames can eliminate the corresponding Markov chain. We show that the model matches the pseudo-periodic autocorrelation function quite well. We present simulation results of an asynchronous transfer mode (ATM) video transmitter using a FIFO queue and measure the average cell delay. Simulation results showed good agreement with results obtained using actual traces as sources.