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Proceedings Paper

Subjective evaluation of an edge-based depth image compression scheme
Author(s): Yun Li; Mårten Sjöström; Ulf Jennehag; Roger Olsson; Sylvain Tourancheau
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Paper Abstract

Multi-view three-dimensional television requires many views, which may be synthesized from two-dimensional images with accompanying pixel-wise depth information. This depth image, which typically consists of smooth areas and sharp transitions at object borders, must be consistent with the acquired scene in order for synthesized views to be of good quality. We have previously proposed a depth image coding scheme that preserves significant edges and encodes smooth areas between these. An objective evaluation considering the structural similarity (SSIM) index for synthesized views demonstrated an advantage to the proposed scheme over the High Efficiency Video Coding (HEVC) intra mode in certain cases. However, there were some discrepancies between the outcomes from the objective evaluation and from our visual inspection, which motivated this study of subjective tests. The test was conducted according to ITU-R BT.500-13 recommendation with Stimulus-comparison methods. The results from the subjective test showed that the proposed scheme performs slightly better than HEVC with statistical significance at majority of the tested bit rates for the given contents.

Paper Details

Date Published: 12 March 2013
PDF: 8 pages
Proc. SPIE 8648, Stereoscopic Displays and Applications XXIV, 86480D (12 March 2013); doi: 10.1117/12.2003053
Show Author Affiliations
Yun Li, Mid Sweden Univ. (Sweden)
Mårten Sjöström, Mid Sweden Univ. (Sweden)
Ulf Jennehag, Mid Sweden Univ. (Sweden)
Roger Olsson, Mid Sweden Univ. (Sweden)
Sylvain Tourancheau, Mid Sweden Univ. (Sweden)

Published in SPIE Proceedings Vol. 8648:
Stereoscopic Displays and Applications XXIV
Andrew J. Woods; Nicolas S. Holliman; Gregg E. Favalora, Editor(s)

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