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Multiview image coding scheme transformations: artifact characteristics and effects on perceived 3D quality
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (Realistic3D, SensibleReality, STC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (Realistic3D, SensibleReality, STC)ORCID iD: 0000-0003-3751-6089
2010 (English)In: Stereoscopic Displays and Applications XXI 2010, SPIE - International Society for Optical Engineering, 2010Conference paper, Published paper (Refereed)
Abstract [en]

Compression schemes for 3D images and -video gain much of their efficiency from transformations that convert the signal into forms suitable for quantization. The achieved compression efficiency is principally determined by rate-distortion analysis using objective quality evaluation metrics. In 2D, quality evaluation metrics operating in the pixel domain implicitly assumes an ideal display modelled as a unity transformation. Similar simplifications are not feasible in 3D analysis and different coding schemes introduce significantly different compression artefacts even though operating at the same rate-distortion ratio.

 

In this paper we have performed a subjective assessment of the quality of compressed 3D images presented on an autostereoscopic display. In the qualitative part of the assessment different properties of the induced coding artefacts was identified with respect to image depth, pixelation, and zero-parallax distortion. The quantitative part was conducted using a group of non-expert observers that assessed the 3D quality.

In the results we show how the compression schemes introduce specific groups of artefacts manifesting with significantly different characteristics. In addition, each characteristic is derived from the transformation domains and the relationships between coding scheme and distortion property are presented. Moreover, the characteristics are related to the image quality assessment produced by the observation group.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2010.
Series
Proceedings of SPIE, ISSN 0277-786X
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-10000DOI: 10.1117/12.838975ISI: 000284868500033Scopus ID: 2-s2.0-77949590343ISBN: 978-0-8194-7917-4 (print)OAI: oai:DiVA.org:miun-10000DiVA, id: diva2:245981
Conference
Conference on Stereoscopic Displays and Applications XXI, Jan 18-20, 2010, San Jose, CA
Available from: 2010-06-14 Created: 2009-10-08 Last updated: 2017-08-22Bibliographically approved

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Olsson, RogerSjöström, Mårten

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CiteExportLink to record
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