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Proceedings Paper

Comparison of the detectability and annoyance value of embedded MPEG-2 artifacts of different type, size, and duration
Author(s): Michael Scott Moore; John M. Foley; Sanjit K. Mitra
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Paper Abstract

One fundamental problem in predicating the subject5ive quality of a degraded video is that the perceived quality depends on the properties of the video itself, or the context of the degradation. In this paper, we present the result for a series of experiments designed to measure the detection thresholds and annoyance values of small regions of MPEG-2 artifacts inserted into mostly uncorrupted video sequences. In previous work, we found that the detection threshold contains much, but not all, of the information needed to remove the dependence of quality on the context. In this paper, we report the result of two experiments. In one experiment, we varied the type of MPEG-2 artifacts inserted into the test sequences. In the other experiment, we varied the location , size, and duration of the corrupted regions in the test sequences. From each set of dat, we estimated detection thresholds and fitted the parameters of a quality function. The experimental results demonstrated that, under a wide set of test conditions, the detection threshold is still very useful for the estimation of quality as context varies. In fact, the detection threshold was the only factor necessary to model the changes in the quality function parameters with artifact type. The experimental data showed that the detection threshold and the quality function parameters do depend on the size and duration of the degraded region. However, the effects of size and duration are minor relative to the effect of artifact location.

Paper Details

Date Published: 8 June 2001
PDF: 12 pages
Proc. SPIE 4299, Human Vision and Electronic Imaging VI, (8 June 2001); doi: 10.1117/12.429531
Show Author Affiliations
Michael Scott Moore, Univ. of California/Santa Barbara (United States)
John M. Foley, Univ. of California/Santa Barbara (United States)
Sanjit K. Mitra, Univ. of California/Santa Barbara (United States)

Published in SPIE Proceedings Vol. 4299:
Human Vision and Electronic Imaging VI
Bernice E. Rogowitz; Thrasyvoulos N. Pappas, Editor(s)

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