UM
HARD SHADOWS REMOVAL USING AN APPROXIMATE ILLUMINATION INVARIANT
Wang, Bingshu; Chen, C. L. Philip; Li, Yuyuan; Zhao, Yong; IEEE
2018
Conference Name2018 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP)
Pages1628-1632
Publication Place345 E 47TH ST, NEW YORK, NY 10017 USA
PublisherIEEE
AbstractHard shadows detection and removal from foreground masks is a challenging step in change detection. This paper gives a simple and effective method to address hard shadows. There are inside portion and boundary portion in hard shadows. Pixel-wise neighborhood ratio is calculated to remove the most of inside shadow points. For the boundaries of shadow regions, we take advantage of color constancy to eliminate the edges of hard shadows and obtain relative accurate objects contours. Then, morphology processing is explored to enhance the integrity of objects. The main contribution of this paper is to design an approximate estimation strategy for illumination invariant based on Lambertian reflectance model without prior knowledge. The proposed method is unsupervised and experimental results on six challenging sequences show the effectiveness and robustness of our approach.
KeywordHard shadows Illumination invariant Lambertian reflectance Color constancy
URLView the original
Indexed ByCPCI
Language英语
WOS Research AreaAcoustics ; Engineering
WOS SubjectAcoustics ; Engineering, Electrical & Electronic
WOS IDWOS:000446384601163
The Source to ArticleWOS
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Wang, Bingshu,Chen, C. L. Philip,Li, Yuyuan,et al. HARD SHADOWS REMOVAL USING AN APPROXIMATE ILLUMINATION INVARIANT[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018:1628-1632.
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