RT Journal Article
SR 00
ID 10.1007/s10851-008-0095-0
A1 Ronda Prieto, José Ignacio
A1 Valdés Morales, Antonio
A1 Gallego Bonet, Guillermo
T1 Line geometry and camera autocalibration
JF Journal Of Mathematical Imaging And Vision
YR 2008
FD 2008-10
VO 32
IS 2
SP 193
OP 214
K1 Camera autocalibration, varying parameters, absolute quadratic complex
AB We provide a completely new rigorous matrix formulation of the absolute quadratic complex (AQC), given by the set of lines intersecting the absolute conic. The new results include closed-form expressions for the camera intrinsic parameters in terms of the AQC, an algorithm to obtain the dual absolute quadric from the AQC using straightforward matrix operations, and an equally direct computation of a Euclidean-upgrading homography from the AQC. We also completely characterize the 6×6 matrices acting on lines which are induced by a spatial homography. Several algorithmic possibilities arising from the AQC are systematically explored and analyzed in terms of efficiency and computational cost. Experiments include 3D reconstruction from real images.
NO Tratamiento de Imágenes GTI
PB Springer Verlag
SN 0924-9907
LK http://oa.upm.es/2350/
UL http://link.springer.com/article/10.1007/s10851-008-0095-0