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Authors: Romain Hoarau 1 ; Eric Coiro 1 ; Sébastien Thon 2 and Romain Raffin 2

Affiliations: 1 Onera - The French Aerospace Lab, France ; 2 Aix Marseille University and Toulon University, France

Keyword(s): Spectral Image Rendering, Global Illumination, GPU Computing, Predictive Rendering.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; High-Performance Computing and Parallel Rendering ; Rendering ; Rendering Algorithms

Abstract: In this paper, we describe a framework focused on spectral images rendering. The rendering of a such image leads us to three major issues: the computation time, the footprint of the spectral image, and the memory consumption of the algorithm. The computation time can be drastically reduced by the use of GPUs, however, their memory capacity and bandwidth (compared to their compute power) are limited. When the spectral dimension of the image will raise, the straightforward approach of the Path Tracing will lead us to high memory consumption and latency problems. To overcome these problems, we propose the DPEPT (Deferred Path Evaluation Path Tracing) which consists in decoupling the path evaluation from the path generation. This technique reduces the memory latency and consumption of the Path Tracing. It allows us to use an efficient wavelength samples batches parallelization pattern to optimize the path evaluation step and outperforms the straightforward approach when the spectral reso lution of the simulated image increases. (More)

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Paper citation in several formats:
Hoarau, R.; Coiro, E.; Thon, S. and Raffin, R. (2018). Interactive Hyper Spectral Image Rendering on GPU. In Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - GRAPP; ISBN 978-989-758-287-5; ISSN 2184-4321, SciTePress, pages 71-80. DOI: 10.5220/0006549800710080

@conference{grapp18,
author={Romain Hoarau. and Eric Coiro. and Sébastien Thon. and Romain Raffin.},
title={Interactive Hyper Spectral Image Rendering on GPU},
booktitle={Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - GRAPP},
year={2018},
pages={71-80},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006549800710080},
isbn={978-989-758-287-5},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - GRAPP
TI - Interactive Hyper Spectral Image Rendering on GPU
SN - 978-989-758-287-5
IS - 2184-4321
AU - Hoarau, R.
AU - Coiro, E.
AU - Thon, S.
AU - Raffin, R.
PY - 2018
SP - 71
EP - 80
DO - 10.5220/0006549800710080
PB - SciTePress