Scene oriented model for VBR video
E. Casilari, María Lorente, A. Reyes, Antonio Díaz Estrella, Francisco Sandoval · Electronics Letters · 1998
A new model for variable bit rate (VBR) video traffic is presented. The model, which could be used as a traffic generator, considers two time scales: scenes, for periods of several minutes, and groups of pictures (GOP), for periods of half a second. To model the scene changes, a Markov chain is used. For the GOP level, a modification for the projected autorregresive (PAR) model is proposed so that the fitting of the autocorrelation function is improved. The model is used to imitate two real MPEG video signals, showing that it is able to accurately capture the behaviour of the real traffic in a queue.