A calibration method for continuous video quality (SSCQE) measurements

被引：6

作者：

Aldridge, R

Pearson, D

机构：

[1] Univ Essex, Dept Elect Syst Engn, Colchester CO4 3SQ, Essex, England

[2] Mobile Syst Int, London E14 9GE, England

来源：

SIGNAL PROCESSING-IMAGE COMMUNICATION | 2000年 / 16卷 / 03期

关键词：

video quality; MPEG quality variations; SSCQE; ITU-R recommendation BT.500;

D O I：

10.1016/S0923-5965(99)00061-2

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：

It is shown that single stimulus continuous quality evaluation (SSCQE) measurements can be calibrated against a standard reference, even though they relate to long video sequences of up to 25 min duration. This can be accomplished by projecting chosen percentiles in the histogram of continuous quality judgements onto the SSCQE graph, so identifying appropriate representative sections for use in DSCQS tests. Three different algorithms were tested for detailed selection of the 10 s sections, with a modal quality criterion giving the best results. Calibration using both linear and non-linear mapping between SSCQE and MDS scores has been satisfactorily accomplished. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：321 / 332

页数：12

共 10 条

[1] MEASUREMENT OF SCENE-DEPENDENT QUALITY VARIATIONS IN DIGITALLY CODED TELEVISION PICTURES [J].

ALDRIDGE, R ;

DAVIDOFF, J ;

GHANBARI, M ;

HANDS, D ;

PEARSON, D .

IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING, 1995, 142 (03) :149-154

[2]

ALDRIDGE R, 1996, P INT PICT COD S MEL, P269

[3] Continuous quality assessment of digitally-coded television pictures [J].

Aldridge, RP ;

Hands, DS ;

Pearson, DE ;

Lodge, NK .

IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING, 1998, 145 (02) :116-123

[4]

ALDRIDGES R, 1996, THESIS U ESSEX

[5] Continuous assessment of image quality [J].

deRidder, H ;

Hamberg, R .

SMPTE JOURNAL, 1997, 106 (02) :123-128

[6]

DERIDDER H, 1996, P IEEE INT C IM PROC, V1, P869

[7]

GABRIEL E, 1996, SUBJECTIVE ASSESSMEN

[8] Time-varying image quality: Modeling the relation between instantaneous and overall quality [J].

Hamberg, R ;

de Ridder, H .

SMPTE JOURNAL, 1999, 108 (11) :802-811

[9]

HANDS DS, 1997, THESIS U ESSEX

[10]

PEARSON D, 1997, P IEEE INT C AC SPEE, P5

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