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 http://resolver.caltech.edu/CaltechAUTHORS:20100819-112709677
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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|
|Additional Information:||© 2006 IEEE.|
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|Deposited By:||Tony Diaz|
|Deposited On:||19 Aug 2010 23:45|
|Last Modified:||26 Dec 2012 12:20|
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