id
	12079
Url
	https://chloe.cnr.it/s/BiDiAr/item/12079
Resource template
	Academic Article
Resource class
	bibo:AcademicArticle
Title
	The 4-source photometric stereo technique for three-dimensional surfaces in the presence of highlights and shadows
Creator
	Barsky, Svetlana
	Petrou, Maria
Date
	2003
Language
	eng
Abstract
	We present an algorithm for separating the local gradient information and Lambertian color by using 4-source color photometric stereo in the presence of highlights and shadows. We assume that the surface reflectance can be approximated by the sum of a Lambertian and a specular component. The conventional photometric method is generalized for color images. Shadows and highlights in the input images are detected using either spectral or directional cues and excluded from the recovery process, thus giving more reliable estimates of local surface parameters.
Is Part Of
	IEEE Transactions on Pattern Analysis and Machine Intelligence
Cited by
	11056
Doi
	https://doi.org/10.1109/TPAMI.2003.1233898
Issn
	1939-3539
Issue
	10
Pages
	1239-1252
Uri
	https://ieeexplore.ieee.org/document/1233898
Volume
	25
Homepage
	https://www.zotero.org/groups/5293298/bidiar/items/GV88JS6D/item-list

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