Variable bit-rate coding based on human visual system

Jiro Katto*, Katsumasa Onda, Yasuhiko Yasuda

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

One of the merits with the introduction of variable bit-rate coding to moving pictures is the constancy of picture quality. However, considering the fact that conventional SNR cannot reflect the result of subjective assessment sufficiently, other quality measures should be considered to design the variable bit-rate coders. In this paper, weighted SNR (WSNR), which is calculated by weighting coding errors with the spatial frequency response of human vision, is introduced as a quality measure in place of SNR, and the variable bit-rate coder based on this measure is considered. Then, subjective assessment is carried out and the effectiveness of our approach is confirmed.

本文言語English
ページ(範囲)313-320
ページ数8
ジャーナルSignal Processing: Image Communication
3
4
DOI
出版ステータスPublished - 1991 9
外部発表はい

ASJC Scopus subject areas

  • ソフトウェア
  • 信号処理
  • コンピュータ ビジョンおよびパターン認識
  • 電子工学および電気工学

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