DocumentCode :
2401377
Title :
What can missing correspondences tell us about 3D structure and motion?
Author :
Zach, Christopher ; Irschara, Arnold ; Bischof, Horst
Author_Institution :
VRVis Res. Center, Chapel Hill, NC
fYear :
2008
fDate :
23-28 June 2008
Firstpage :
1
Lastpage :
8
Abstract :
Practically all existing approaches to structure and motion computation use only positive image correspondences to verify the camera pose hypotheses. Incorrect epipolar geometries are solely detected by identifying outliers among the found correspondences. Ambiguous patterns in the images are often incorrectly handled by these standard methods. In this work we propose two approaches to overcome such problems. First, we apply non-monotone reasoning on view triplets using a Bayesian formulation. In contrast to two-view epipolar geometry, image triplets allow the prediction of features in the third image. Absence of these features (i.e. missing correspondences) enables additional inference about the view triplet. Furthermore, we integrate these view triplet handling into an incremental procedure for structure and motion computation. Thus, our approach is able to refine the maintained 3D structure when additional image data is provided.
Keywords :
Bayes methods; computer vision; geometry; image motion analysis; nonmonotonic reasoning; 3D motion; 3D structure; Bayesian formulation; camera pose; computer vision; epipolar geometry; image correspondence; image triplets; nonmonotone reasoning; Bayesian methods; Cameras; Computer graphics; Computer vision; Engines; Geometry; Image reconstruction; Layout; Pipelines; Solid modeling;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Vision and Pattern Recognition, 2008. CVPR 2008. IEEE Conference on
Conference_Location :
Anchorage, AK
ISSN :
1063-6919
Print_ISBN :
978-1-4244-2242-5
Electronic_ISBN :
1063-6919
Type :
conf
DOI :
10.1109/CVPR.2008.4587707
Filename :
4587707
Link To Document :
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