Study on MPEG-2 Encoding Scheme Designed for Digital Broadcasting Based on Optimal Rate Control

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Other Title
  • ビット配分の最適化に基づく放送用MPEG-2符号化制御の検討(ハイビジョンおよび一般)
  • ビット配分の最適化に基づく放送用MPEG-2符号化制御の検討
  • ビット ハイブン ノ サイテキカ ニ モトヅク ホウソウヨウ MPEG 2 フゴウカ セイギョ ノ ケントウ

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Description

Digital terrestrial TV broadcasting will start service in Japan from the year 2003 and extensive plans are being made to provide fully equipped broadcast systems. In this service, the available bit-rate for the secondary distribution of HDTV is limited from 11 to 15Mbps, and an effective high compression encoding technologies are required to maintain a satisfactory picture quality at such a low bit-rate. In this paper, HDTV is assumed to be a typical digital television application and an optimal rate control is introduced as an effective technology to achieve higher coding gain. First, the problems caused by the conventional scheme when applied at such low bit-rates are shown, and the modified rate control scheme is proposed and evaluated for the picture layer and the macroblock layer, respectively.

Journal

  • ITE Technical Report

    ITE Technical Report 26.17 (0), 1-6, 2002

    The Institute of Image Information and Television Engineers

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