English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/30592
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Recovering epipolar direction from two affine views of a planar object

AuthorsAlberich-Carramiñana, Maria ; Alenyà, Guillem ; Andrade-Cetto, Juan ; Martínez Marroquín, Elisa; Torras, Carme
KeywordsAffine epipolar direction estimation
Active contours
Precision analysis
Issue Date2008
CitationComputer Vision and Image Understanding 112(2): 195-209 (2008)
AbstractThe mainstream approach to estimate epipolar geometry from two views requires matching the projections of at least 4 non-coplanar points in the scene, assuming a full projective camera model. Our work deviates from this in three respects: affine camera, planar scene and active contour tracking instead of point matching. Using results in Projective Geometry, we prove that the affine epipolar direction can be recovered provided camera motion is free of cyclorotation. A setup consisting of a Staubli robot holding a planar object in front of a camera is used to obtain calibrated image streams, which are used as ground truth to evaluate the performance of the method, and to test its limiting conditions in practice. The fact that our method (applicable to planar, poorly textured scenes) and the Gold Standard algorithm (applicable to highly textured scenes with significant relief) produce comparable results shows the potential of our proposal.
Publisher version (URL)http://dx.doi.org/10.1016/j.cviu.2008.02.007
Appears in Collections:(IRII) Artículos
Files in This Item:
File Description SizeFormat 
Recovering epipolar.pdf772,15 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.