Three-view camera calibration using geometric algebra

In a former work of ours [I], we proposed a new way to express and interpret the epipolar constraint using Geometric Algebra, and we derived from it a novel and efficient2view camera calibration technique. In this paper we extend this GA approach to the 3-view case. Aiter expressing the trifocal constraint in t e m of bivectors and trivectors, we provide an altemative geometric interpretationof the coefficients of the trifocaltensor. On the basis of that, we propose a novel solution for the simultaneous determination of the focal lengths of the cameras and the rigid motion between three views.

• Type: Conference
• Year: 2003
• Where: ICIP
• Authors: Andrea Dell'Acqua, Augusto Sarti, Stefano Tubaro
• Keywords: 3-view Case, Camera Calibration Technique, Epipolar Constraint, Focal Lengths, Geometric Algebra, ICIP 2003, Image Processing