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Authors: Raphael Lerbour ; Bruno Mercier ; Daniel Meneveaux and Chaker Larabi

Affiliation: SIC Laboratory, University of Poitiers, France

Keyword(s): Image-based rendering, light field, compression, subjective assessment.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Image-Based Rendering ; Lighting and Appearance ; Real-Time Rendering ; Rendering

Abstract: In the last decade, many methods have been proposed for rendering image-based objects. However, the number and the size of the images required are highly memory demanding. Based on the light field data structure, we propose an improved compression scheme favoring visual appearance and fast random access. Our method relies on vector quantization for preserving access in constant time. 2D Bounding boxes and masks are used to reduce the number of vectors during quantization. Several light field images are used instead of blocks of 4D samples, so that image similarities be exploited as much as possible. Psychophysical experiments performed in a room designed according to ITU recommendations validate the quality metrics of our method.

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Paper citation in several formats:
Lerbour, R.; Mercier, B.; Meneveaux, D. and Larabi, C. (2007). QUALITY-BASED IMPROVEMENT OF QUANTIZATION FOR LIGHT FIELD COMPRESSION. In Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 2: GRAPP; ISBN 978-972-8865-71-9; ISSN 2184-4321, SciTePress, pages 235-243. DOI: 10.5220/0002078802350243

@conference{grapp07,
author={Raphael Lerbour. and Bruno Mercier. and Daniel Meneveaux. and Chaker Larabi.},
title={QUALITY-BASED IMPROVEMENT OF QUANTIZATION FOR LIGHT FIELD COMPRESSION},
booktitle={Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 2: GRAPP},
year={2007},
pages={235-243},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002078802350243},
isbn={978-972-8865-71-9},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 2: GRAPP
TI - QUALITY-BASED IMPROVEMENT OF QUANTIZATION FOR LIGHT FIELD COMPRESSION
SN - 978-972-8865-71-9
IS - 2184-4321
AU - Lerbour, R.
AU - Mercier, B.
AU - Meneveaux, D.
AU - Larabi, C.
PY - 2007
SP - 235
EP - 243
DO - 10.5220/0002078802350243
PB - SciTePress

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