Does Inverse Lighting Work Well under Unknown Response Function?

Shuya Ohta, Takahiro Okabe

Abstract

Inverse lighting is a technique for recovering the lighting environment of a scene from a single image of an object. Conventionally, inverse lighting assumes that a pixel value is proportional to radiance value, i.e. the response function of a camera is linear. Unfortunately, however, consumer cameras usually have unknown and nonlinear response functions, and therefore conventional inverse lighting does not work well for images taken by those cameras. In this study, we propose a method for simultaneously recovering the lighting environment of a scene and the response function of a camera from a single image. Through a number of experiments using synthetic images, we demonstrate that the performance of our proposed method depends on the lighting distribution, response function, and surface albedo, and address under what conditions the simultaneous recovery of the lighting environment and response function works well.

References

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Paper Citation


in Harvard Style

Ohta S. and Okabe T. (2015). Does Inverse Lighting Work Well under Unknown Response Function? . In Proceedings of the 10th International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2015) ISBN 978-989-758-089-5, pages 652-657. DOI: 10.5220/0005344406520657


in Bibtex Style

@conference{visapp15,
author={Shuya Ohta and Takahiro Okabe},
title={Does Inverse Lighting Work Well under Unknown Response Function?},
booktitle={Proceedings of the 10th International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2015)},
year={2015},
pages={652-657},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005344406520657},
isbn={978-989-758-089-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 10th International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2015)
TI - Does Inverse Lighting Work Well under Unknown Response Function?
SN - 978-989-758-089-5
AU - Ohta S.
AU - Okabe T.
PY - 2015
SP - 652
EP - 657
DO - 10.5220/0005344406520657