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
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