Title :
Projective translations and affine stereo calibration
Author :
Ruf, Andreas ; Csurka, Gabriella ; Horaud, Radu
Author_Institution :
INRIA, Montbonnot St. Martin, France
Abstract :
This paper investigates the structure of projective translations-rigid translations expressed as homographies in projective space. A seven parameter representation is proposed, which explicitly represents the geometric entities constraining and defining the translation. A practical algebraic method for estimating these parameters is developed. It provides affine calibration of a stereo rig, determines the translation axis, and allows projective translations to be composed. The practical effectiveness of the calibration is evaluated on synthetic and real image data
Keywords :
calibration; computer vision; image reconstruction; stereo image processing; affine calibration; affine stereo calibration; calibration; geometric entities; homographies; image data; practical algebraic method; projective space; projective translations; rigid translations; seven parameter representation; stereo rig; translation axis; Calibration; Cameras; Data mining; Image reconstruction; Machine vision; Matrix decomposition; Noise measurement; Parameter estimation; Robot kinematics; Robot vision systems;
Conference_Titel :
Computer Vision and Pattern Recognition, 1998. Proceedings. 1998 IEEE Computer Society Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8497-6
DOI :
10.1109/CVPR.1998.698648
