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Proceedings Paper

Rate control scheme for low-delay MPEG-2 video transcoder
Author(s): Hiroyuki Kasai; Maki Sugiura; Tsuyoshi Hanamura; Wataru Kameyama; Hideyoshi Tominaga
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Paper Abstract

In this paper, we focus on the video transcoder as a bit rate reducer in a network node and propose a rate control scheme for a low-delay MPEG-2 video transcoder. First, we summarize the requirements of a rate control algorithm for low-delay transcoding. Next, based on these requirements, we describe the proposed rate control scheme in detail. Then, we analyze the input and output buffer delay and calculate the total delay time of the proposed transcoder. Finally, we evaluate the proposed scheme from the simulation results of experiments on picture quality, transcoding delay time and GOP (Group Of Pictures) structure information (N/M value) of the input bit stream. Consequently, we showed that the proposed scheme can provide the same picture quality as a traditional scheme and is independent of the GOP structure.

Paper Details

Date Published: 30 May 2000
PDF: 12 pages
Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); doi: 10.1117/12.386582
Show Author Affiliations
Hiroyuki Kasai, Waseda Univ. (Japan)
Maki Sugiura, Waseda Univ. (Japan)
Tsuyoshi Hanamura, Media Glue Corp. (Japan)
Wataru Kameyama, Waseda Univ. (Japan)
Hideyoshi Tominaga, Waseda Univ. (Japan)


Published in SPIE Proceedings Vol. 4067:
Visual Communications and Image Processing 2000
King N. Ngan; Thomas Sikora; Ming-Ting Sun, Editor(s)

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