Variable bit-rate coding based on human visual system

Jiro Katto; Katsumasa Onda; Yasuhiko Yasuda

doi:10.1016/0923-5965(91)90037-3

Variable bit-rate coding based on human visual system

Jiro Katto^*, Katsumasa Onda, Yasuhiko Yasuda

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	313-320
Number of pages	8
Journal	Signal Processing: Image Communication
Volume	3
Issue number	4
DOIs	https://doi.org/10.1016/0923-5965(91)90037-3
Publication status	Published - 1991 Sept
Externally published	Yes

Keywords

Variable bit-rate coding
human visual system

ASJC Scopus subject areas

Software
Signal Processing
Computer Vision and Pattern Recognition
Electrical and Electronic Engineering

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10.1016/0923-5965(91)90037-3

Cite this

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abstract = "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.",

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AU - Onda, Katsumasa

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AB - 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.

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Variable bit-rate coding based on human visual system

Abstract

Keywords

ASJC Scopus subject areas

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