COLOR MODELS OF SHADOW DETECTION IN VIDEO SCENES

Csaba Benedek, Tamás Szirányi

Abstract

In this paper we address the problem of appropriate modelling of shadows in color images. While previous works compared the different approaches regarding their model structure, a comparative study of color models has still missed. This paper attacks a continuous need for defining the appropriate color space for this main surveillance problem. We introduce a statistical and parametric shadow model-framework, which can work with different color spaces, and perform a detailed comparision with it. We show experimental results regarding the following questions: (1) What is the gain of using color images instead of grayscale ones? (2) What is the gain of using uncorrelated spaces instead of the standard RGB? (3) Chrominance (illumination invariant), luminance, or ”mixed” spaces are more effective? (4) In which scenes are the differences significant? We qualified the metrics both in color based clustering of the individual pixels and in the case of Bayesian foreground-background-shadow segmentation. Experimental results on real-life videos show that CIE L*u*v* color space is the most efficient.

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Paper Citation


in Harvard Style

Benedek C. and Szirányi T. (2007). COLOR MODELS OF SHADOW DETECTION IN VIDEO SCENES . In Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, ISBN 978-972-8865-73-3, pages 225-232. DOI: 10.5220/0002052202250232


in Bibtex Style

@conference{visapp07,
author={Csaba Benedek and Tamás Szirányi},
title={COLOR MODELS OF SHADOW DETECTION IN VIDEO SCENES},
booktitle={Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP,},
year={2007},
pages={225-232},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002052202250232},
isbn={978-972-8865-73-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP,
TI - COLOR MODELS OF SHADOW DETECTION IN VIDEO SCENES
SN - 978-972-8865-73-3
AU - Benedek C.
AU - Szirányi T.
PY - 2007
SP - 225
EP - 232
DO - 10.5220/0002052202250232