SHADOW AND SPECULAR REMOVAL BY PHOTOMETRIC LINEARIZATION BASED ON PCA WITH OUTLIER EXCLUSION

Takahiro Mori, Shinsaku Hiura, Kosuke Sato

2012

Abstract

The photometric linearization method converts real images, including various photometric components such as diffuse reflection, specular reflection, attached and cast shadow, into images with diffuse reflection components only, which satisfies the Lambertian law. The conventional method(Mukaigawa et al., 2007) based on a random sampling framework successfully achieves the task; however, it contains two problems. The first is that the three basis images selected from the input images by the user seriously affect the linearization result quality. The other is that it takes a long time to process the enormous number of random samples needed to find the correct answer probabilistically. We therefore propose a novel algorithm using the PCA (principal component analysis) method with outlier exclusion. We used knowledge of photometric phenomena for the outlier detection and the experiments show that the method provides fast and precise linearization results.

Paper Citation

in Harvard Style

Mori T., Hiura S. and Sato K. (2012). SHADOW AND SPECULAR REMOVAL BY PHOTOMETRIC LINEARIZATION BASED ON PCA WITH OUTLIER EXCLUSION . In Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2012) ISBN 978-989-8565-03-7, pages 221-229. DOI: 10.5220/0003817202210229

in Bibtex Style

@conference{visapp12,
author={Takahiro Mori and Shinsaku Hiura and Kosuke Sato},
title={SHADOW AND SPECULAR REMOVAL BY PHOTOMETRIC LINEARIZATION BASED ON PCA WITH OUTLIER EXCLUSION},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2012)},
year={2012},
pages={221-229},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003817202210229},
isbn={978-989-8565-03-7},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2012)
TI - SHADOW AND SPECULAR REMOVAL BY PHOTOMETRIC LINEARIZATION BASED ON PCA WITH OUTLIER EXCLUSION
SN - 978-989-8565-03-7
AU - Mori T.
AU - Hiura S.
AU - Sato K.
PY - 2012
SP - 221
EP - 229
DO - 10.5220/0003817202210229