Comparison of subjective evaluation methods using impairments units [TV picture quality]

Author

Narita, Nagato

Author_Institution

NHK Broadcast Eng. Dept., Network Oper.s Center, Tokyo, Japan

Volume

50

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

185

Lastpage

191

Abstract

This article discusses the method to calculate an objective measure of picture distortions. When the normalized mean score for a reference sequence is smaller than 1.0, the conventional method is inapplicable in calculating impairment units (hereinafter referred to as imps). We propose a new method to calculate imps in sensation domain along with a verification of its validity. The imps obtained in such a way make it possible to compare the results with a large different distribution of scores directly, for example the results obtained from the DSCQS method with those from the SSQS method.

Keywords

digital television; high definition television; image sequences; optical distortion; telecommunication equipment testing; television broadcasting; DSCQS method; HDTV; SSQS method; TV picture quality; double-stimulus continuous quality scale; impairments units; normalized mean reference sequence score; objective picture distortion measure; scores distribution; sensation domain imps calculation; single-stimulus quality scale; subjective evaluation methods; Distortion measurement; Electronic mail; Psychology; Reliability engineering; Testing; DSCQS; imps; objective measure; picture distortions;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/TBC.2004.828379

Filename

1304953