Title :
A gamma-based framework for modeling variable-rate MPEG video sources: the GOP GBAR model
Author :
Frey, Michael ; Nguyen-Quang, Son
Author_Institution :
Dept. of Math., Bucknell Univ., Lewisburg, PA, USA
fDate :
12/1/2000 12:00:00 AM
Abstract :
A flexible model called the group-of-pictures gamma-beta auto-regression (GOP GBAR) model based on gamma-distributed variables is proposed for variable-rate MPEG video sources. This model is an extension of Heyman´s (see IEEE/ACM Trans. Networking, vol.5, p.554-60, 1997) GBAR model for video teleconferencing. The GOP GBAR model explicitly accounts for MPEG GOP cyclicity and has convenient analytical properties with easily estimated parameters. Possible extensions of the GOP GBAR model are proposed to capture special features of MPEG video
Keywords :
asynchronous transfer mode; autoregressive processes; code standards; data compression; gamma distribution; parameter estimation; teleconferencing; video coding; ATM network; GOP GBAR model; Heyman´s GBAR model; MPEG GOP cyclicity; analytical properties; data compression; gamma-based framework; gamma-distributed variables; group-of-pictures gamma-beta auto-regression; parameter estimation; variable-rate MPEG video sources; video teleconferencing; Asynchronous transfer mode; Bandwidth; Data compression; Quality of service; Redundancy; Telecommunication traffic; Traffic control; Transfer functions; Transform coding; Video compression;
Journal_Title :
Networking, IEEE/ACM Transactions on
