Objective picture quality scale (PQS) for image coding

Author

Miyahara, Makoto ; Kotani, Kazunori ; Algazi, V. Ralph

Author_Institution

Dept. of Inf. Process., Japan Adv. Inst. of Sci. & Technol., Ishikawa, Japan

Volume

46

Issue

9

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

1215

Lastpage

1226

Abstract

A new methodology for the determination of an objective metric for still image coding is reported. This methodology is applied to obtain a picture quality scale (PQS) for the coding of achromatic images over the full range of image quality defined by the subjective mean opinion score (MOS). This PQS takes into account the properties of visual perception for both global features and localized disturbances. The PQS closely approximates the MOS, with a correlation coefficient of more than 0.92, as compared to 0.57 obtained using the conventional weighted mean-square error (WMSE). Extensions and applications of the methodology and of the resulting metric are discussed

Keywords

coding errors; correlation methods; data compression; image coding; visual perception; MOS; WMSE; coding error; correlation coefficient; global features; image compression; image quality; localized disturbances; objective picture quality scale; still image coding; subjective mean opinion score; visual perception; weighted mean-square error; Helium; Humans; Image coding; Image quality; PSNR; Process design; Psychology; Quality of service; Testing; Visual perception;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.718563

Filename

718563