New Geometric Insight on the Trifocal tensor and its Constraints
A. Dell’Acqua, C. Landi, Augusto Sarti, Stefano Tubaro · Virtual Community of Pathological Anatomy (University of Castilla La Mancha) · 2003
The literature is rich with descriptions of the possible multi-view relations and their use in computer vision. Some of them arise from a purely geometric approach, some others are derived in more of an algebraic fashion. In this paper we show that, with a re-definition of the involved objects and some additional geometric tools, we can come to a more intuitive understanding of some of the most traditionally employed tools in computer vision. In particular, by re-defining camera models, incidence relations and duality we provide an alternative geometric interpretation of the tri-linearities, the trifocal tensor and the related constraints.