Title
Shadows Removal by Edges Matching
Abstract
Motion detection algorithms usually detect moving regions in a rough way; in some application contexts it could be mandatory to obtain the exact shape of such objects by removing cast shadows as well as ghosts and reflections due to variations in light conditions. To address this problem we propose an approach based on edge matching. The basic idea is that edges extracted in shadow (or ghost) regions in current image exactly match with edges extracted in the correspondent regions in the background image. On the contrary, edges extracted on foreground objects have not correspondent edges in the background image. In order to remove all shadow regions instead of only shadow points, we firstly segment the foreground image into subregions, according to uniformity of photometric gain between adjacent points. The algorithm has been tested in many different real contexts, both in indoor and outdoor environments.
Year
DOI
Venue
2009
10.1007/978-3-642-10520-3_41
International Symposium on Visual Computing
Keywords
Field
DocType
correspondent region,shadows removal,shadow point,foreground image,background image,shadow region,cast shadow,edges matching,correspondent edge,foreground object,adjacent point,current image
Computer vision,Shadow,Motion detection,Pattern recognition,Computer science,Edge matching,Artificial intelligence
Conference
Volume
ISSN
Citations 
5876
0302-9743
0
PageRank 
References 
Authors
0.34
22
4
Name
Order
Citations
PageRank
Paolo Spagnolo116822.37
Pier Luigi Mazzeo27213.84
Marco Leo38112.03
Tiziana D'Orazio420431.62