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Shadow Carving

Savarese, Silvio and Rushmeier, Holly and Bernardini, Fausto and Perona, Pietro (2001) Shadow Carving. In: Eighth IEEE International Conference on Computer Vision. IEEE Computer Society , Los Alamitos, CA, pp. 190-197. ISBN 0-7695-1143-0.

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The shape of an object may be estimated by observing the shadows on its surface. We present a method that is robust with respect to a conservative classification of shadow regions. Assuming that a conservative estimate of the object shape is available, we analyze images of the object illuminated with known point light sources taken from known camera locations. We adjust our surface estimate using the shadow regions to produce a refinement that is still a conservative estimate. A proof of correctness is provided. No assumptions about the object topology are made, although any tangent plane discontinuities over the object's surface are supposed to be detectable. An implementation and some experimental results are presented.

Item Type:Book Section
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Perona, Pietro0000-0002-7583-5809
Additional Information:© 2001 IEEE. Date of Current Version: 07 August 2002. Part of this work was performed during an internship by S. Savarese at the IBM T. J. Watson Research Center and part funded by the NSF Engineering Research Center for Neuromorphic Systems Engineering (CNSE) at Caltech (NSF9402726).
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Caltech NSF Engineering Research Center for Neuromorphic Systems Engineering (CNSE)NSF9402726
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INSPEC Accession Number7024172
Record Number:CaltechAUTHORS:20111118-142233024
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Official Citation:Savarese, S.; Rushmeier, H.; Bernardini, F.; Perona, P.; , "Shadow carving," Computer Vision, 2001. ICCV 2001. Proceedings. Eighth IEEE International Conference on , vol.1, no., pp.190-197 vol.1, 2001 doi: 10.1109/ICCV.2001.937517 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:27867
Deposited By: Ruth Sustaita
Deposited On:20 Nov 2011 23:53
Last Modified:31 Oct 2019 23:55

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