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Shadow detection via Rayleigh scattering and Mie theory

conference contribution
posted on 2013-01-01, 00:00 authored by Lin Gu, Antonio Robles-KellyAntonio Robles-Kelly
In this paper, we present a method to detect shadows in outdoor scenes. Here, we note that the shadow areas correspond to the diffuse skylight which arises from the scattering of the sunlight by particles in the atmosphere. This yields a treatment in which shadows in the image can be viewed as a linear combination of scattered light obeying Rayleigh scattering and Mie theory. This treatment allows for the computation of a ratio which permits casting the problem of recovering the shadowed areas in the image into a clustering setting making use of active contours. We illustrate the utility of the method for purposes of detecting shadows in real-world imagery and compare our results against a number of alternatives elsewhere in the literature.

History

Pagination

2165-2168

Location

Tsukuba, Japan

Start date

2012-11-11

End date

2012-11-15

ISSN

1051-4651

ISBN-13

978-1-4673-2216-4

Language

eng

Publication classification

E1.1 Full written paper - refereed

Copyright notice

2012, ICPR

Title of proceedings

ICPR 2012 : Proceedings of the 21st International Conference on Pattern Recognition

Event

ICPR - Pattern Recognition. International Conference (21st : 2012 : Tsukuba, Japan)

Publisher

I E E E Computer Society

Place of publication

Washington, D.C.

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