Scope of validity of PSNR in image/video quality assessment

被引：1950

作者：

Huynh-Thu, Q. ^{[1
]}

Ghanbari, M. ^{[2
]}

机构：

[1] Psytech Ltd, Ipswich IP1 1HN, Suffolk, England

[2] Univ Essex, Dept Comp & Elect Syst, Colchester CO4 3SQ, Essex, England

来源：

ELECTRONICS LETTERS | 2008年 / 44卷 / 13期

关键词：

D O I：

10.1049/el:20080522

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Experimental data are presented that clearly demonstrate the scope of application of peak signal-to-noise ratio (PSNR) as a video quality metric. It is shown that as long as the video content and the codec type are not changed, PSNR is a valid quality measure. However, when the content is changed, correlation between subjective quality and PSNR is highly reduced. Hence PSNR cannot be a reliable method for assessing the video quality across different video contents.

引用

页码：800 / U35

页数：2