Affine Stereo Calibration for Relative Affine Shape Reconstruction

Long Quan 1, 2
1 MOVI - Modeling, localization, recognition and interpretation in computer vision
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : It has been shown that relative projective shape, determined up to an unknown projective transformation, with respect to 5 reference points can be obtained from point-to-point correspondences of a pair of images; Affine shape up to an unknown affine transformation with respect to 4 points can be obtained from parallel projection. We show in this paper that afTine shape with respect to 4 reference points can be obtained from two perspective images provided that the pair of images is affinely calibrated. By affine calibration, it means the establishment of a special plane collineation between two image planes, this collineation is the product of two plane collineations each of which establishes a (1,1) correspondence between an image plane and the plane at infinity. Experimental results are also presented.
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Communication dans un congrès
John Illingworth. 4th British Machine Vision Conference (BMVC '93), Sep 1993, Surrey, United Kingdom. pp.659--668, 1993
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Long Quan. Affine Stereo Calibration for Relative Affine Shape Reconstruction. John Illingworth. 4th British Machine Vision Conference (BMVC '93), Sep 1993, Surrey, United Kingdom. pp.659--668, 1993. 〈inria-00590024〉

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