File(s) under permanent embargo
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-KellyIn 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
Event
ICPR - Pattern Recognition. International Conference (21st : 2012 : Tsukuba, Japan)Pagination
2165 - 2168Publisher
I E E E Computer SocietyLocation
Tsukuba, JapanPlace of publication
Washington, D.C.Start date
2012-11-11End date
2012-11-15ISSN
1051-4651ISBN-13
978-1-4673-2216-4Language
engPublication classification
E1.1 Full written paper - refereedCopyright notice
2012, ICPRTitle of proceedings
ICPR 2012 : Proceedings of the 21st International Conference on Pattern RecognitionUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC