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Proceedings Paper

Linking distortion perception and visual saliency in H.264/AVC coded video containing packet loss
Author(s): Ulrich Engelke; Romuald Pepion; Patrick Le Callet; Hans-Jürgen Zepernick
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Paper Abstract

In this paper, distortions caused by packet loss during video transmission are evaluated with respect to their perceived annoyance. In this respect, the impact of visual saliency on the level of annoyance is of particular interest, as regions and objects in a video frame are typically not of equal importance to the viewer. For this purpose, gaze patterns from a task free eye tracking experiment were utilised to identify salient regions in a number of videos. Packet loss was then introduced into the bit stream such as that the corresponding distortions appear either in a salient region or in a non-salient region. A subjective experiment was then conducted in which human observers rated the annoyance of the distortions in the videos. The outcomes show a strong tendency that distortions in a salient region are indeed perceived as much more annoying as compared to distortions in the non-salient region. The saliency of the distorted image content was further found to have a larger impact on the perceived annoyance as compared to the distortion duration. The findings of this work are considered to be of great use to improve prediction performance of video quality metrics in the context of transmission errors.

Paper Details

Date Published: 13 July 2010
PDF: 10 pages
Proc. SPIE 7744, Visual Communications and Image Processing 2010, 774406 (13 July 2010); doi: 10.1117/12.863508
Show Author Affiliations
Ulrich Engelke, Blekinge Institute of Technology (Sweden)
Romuald Pepion, IRCCyN, CNRS, Univ. of Nantes (France)
Patrick Le Callet, IRCCyN, CNRS, Univ. of Nantes (France)
Hans-Jürgen Zepernick, Blekinge Institute of Technology (Sweden)

Published in SPIE Proceedings Vol. 7744:
Visual Communications and Image Processing 2010
Pascal Frossard; Houqiang Li; Feng Wu; Bernd Girod; Shipeng Li; Guo Wei, Editor(s)

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