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Multiview stereo via volumetric Graph-Cuts and occlusion robust photo-consistency.

Vogiatzis, G and Hernández Esteban, C and Torr, PH and Cipolla, R (2007) Multiview stereo via volumetric Graph-Cuts and occlusion robust photo-consistency. IEEE Trans Pattern Anal Mach Intell, 29. pp. 2241-2246. ISSN 0162-8828

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Abstract

This paper presents a volumetric formulation for the multi-view stereo problem which is amenable to a computationally tractable global optimisation using Graph-cuts. Our approach is to seek the optimal partitioning of 3D space into two regions labelled as "object" and "empty" under a cost functional consisting of the following two terms: (1) A term that forces the boundary between the two regions to pass through photo-consistent locations and (2) a ballooning term that inflates the "object" region. To take account of the effect of occlusion on the first term we use an occlusion robust photo-consistency metric based on Normalised Cross Correlation, which does not assume any geometric knowledge about the reconstructed object. The globally optimal 3D partitioning can be obtained as the minimum cut solution of a weighted graph.

Item Type: Article
Uncontrolled Keywords: Algorithms Artificial Intelligence Image Enhancement Image Interpretation, Computer-Assisted Imaging, Three-Dimensional Pattern Recognition, Automated Photogrammetry Reproducibility of Results Sensitivity and Specificity
Subjects: UNSPECIFIED
Divisions: Div F > Machine Intelligence
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:42
Last Modified: 22 Sep 2014 01:08
DOI: 10.1109/TPAMI.2007.70712

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