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MPEG coding for variable bit rate video transmission

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2 Author(s)
Pancha, P. ; Dept. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA ; El Zarki, M.

For real-time transmission of broadcast-quality video on ATM-based B-ISDN, the intraframe to interframe ratio and the quantizer scale are two key parameters that can be used to control a video source in a network environment. Their impact on the traffic characteristics of the coder provides insights into the cell arrival process for an MPEG source. The authors obtain video source models for coders that utilize a standard algorithm that can be applied to a multitude of video services. The output stream of a video coder, which complies with the Motion Pictures Expert Group (MPEG) coding standard, is studied with an National Television Systems Committee (NTSC) quality video sequence as the input. Because the MPEG video coding algorithm has been proposed for a variety of applications, they also investigate the effect of changing the coding parameters on the statistics of interest.<>

Published in:

Communications Magazine, IEEE  (Volume:32 ,  Issue: 5 )