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CVPR
1999
IEEE
16 years 8 months ago
Critical Motions in Euclidean Structure from Motion
We investigate the motions that lead to ambiguous Euclidean scene reconstructions under several common calibration constraints, giving a complete description of such critical moti...
Fredrik Kahl, Bill Triggs
CVPR
1999
IEEE
16 years 8 months ago
Estimation of Epipolar Geometry from Apparent Contours: Affine and Circular Motion Cases
This paper addresses the problem of estimating the epipolar geometry from apparent contours in two special cases: under weak perspective and for circular motion. An appropriate pa...
Paulo R. S. Mendonça, Roberto Cipolla
CVPR
2004
IEEE
16 years 8 months ago
Reconstructing 3D Independent Motions Using Non-Accidentalness
Reconstructing 3D scenes with independently moving objects from uncalibrated monocular image sequences still poses serious challenges. One important problem is to find the relativ...
Kemal Egemen Ozden, Kurt Cornelis, Luc Van Eycken,...
CVPR
2005
IEEE
16 years 8 months ago
Camera Calibration and Light Source Estimation from Images with Shadows
In this paper, we describe how camera parameters and light source orientation can be recovered from two perspective views of a scene given only two vertical lines and their cast s...
Xiaochun Cao, Mubarak Shah
CVPR
2005
IEEE
16 years 8 months ago
A Minimal Solution for Relative Pose with Unknown Focal Length
Assume that we have two perspective images with known intrinsic parameters except for an unknown common focal length. It is a minimally constrained problem to find the relative or...
Henrik Stewénius, David Nistér, Fred...