A generic smoothing algorithm for real-time variable bit rate video traffic

✍ Scribed by Rosângela Coelho; Samir Tohmé

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 488 KB
• Volume: 29
• Category: Article
• ISSN: 0169-7552
• DOI: 10.1016/s0169-7552(97)00123-2

✦ Synopsis

A generic video smoothing algorithm named video step buffer VSB considering image quality and delay guarantee is discussed in this paper. A wide-range scenario consisting of different video coders and sequences were investigated in order to measure the impact of the smoothing procedure on image quality and delay. The VSB experimental tests presented Ž . successful results for both real and non-real-time variable bit rate VBR video sources. The VSB controls rate variability while providing video source arrival prediction. The video arrival distribution is obtained by a special Markov-chain model Ž . that exploits the real VSB coding parameters. The statistical multiplexing gain SMG results for the different video coders and sequences are also discussed. q 1998 Elsevier Science B.V.