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Carving from Ray-Tracing Constraints: IRT-Carving

Andreetto, M. and Savarese, S. and Perona, P. (2007) Carving from Ray-Tracing Constraints: IRT-Carving. In: Proceedings, 3rd International Symposium on 3D Data Processing, Visualization, and Transmission. IEEE , Piscataway, NJ, pp. 49-56. ISBN 978-0-7695-2825-0.

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We present a new algorithm for improving an available (conservative) estimate of the shape of an object using constraints from ray-tracing. In particular, we exploit incoherences between the lit portions of the object - detected on a set of acquired images - and the shadows that the current estimate casts on itself. Whenever a contradiction is found the current estimate is modified in order to remove the inconsistency. Sufficient conditions for the correctness of the algorithm and a discussion of their validity are provided. Finally, we describe a simple implementation of the method and present some preliminary experimental results from computer simulations.

Item Type:Book Section
Related URLs:
Perona, P.0000-0002-7583-5809
Additional Information:© 2006 IEEE.
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INSPEC Accession Number10285049
Record Number:CaltechAUTHORS:20100819-112709677
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19516
Deposited By: Tony Diaz
Deposited On:19 Aug 2010 23:45
Last Modified:08 Nov 2021 23:53

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