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Proceedings Paper

Optimal sequence duration for subjective video quality assessment
Author(s): Felix J. Mercer Moss; Ke Wang; Fan Zhang; Roland Baddeley; David Bull
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Paper Abstract

This paper reports an empirical investigation into increasing the efficiency of subjective data collection by reducing the length of test sequences below the recommended 10 seconds. Twenty-four observers viewed four 10 second reference sequences, in addition to four truncated versions of each: 7 seconds; 5 seconds; 3 seconds and 1.5 seconds. Results indicated that, compared to the 10 second sequences, the ability of observers to identify compression artefacts was significantly reduced only when viewing the 1.5 second sequences. These results indicate that, when using the DSCQS methodology, a significant benefit in the efficiency of subjective data collection can be gained by reducing the length of test sequences to potentially as low as 3 seconds, without a significant impact upon reliability.

Paper Details

Date Published: 22 September 2015
PDF: 6 pages
Proc. SPIE 9599, Applications of Digital Image Processing XXXVIII, 959915 (22 September 2015); doi: 10.1117/12.2190893
Show Author Affiliations
Felix J. Mercer Moss, Univ. of Bristol (United Kingdom)
Ke Wang, Univ. of Bristol (United Kingdom)
Fan Zhang, Univ. of Bristol (United Kingdom)
Roland Baddeley, Univ. of Bristol (United Kingdom)
David Bull, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 9599:
Applications of Digital Image Processing XXXVIII
Andrew G. Tescher, Editor(s)

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