[Zurück]

E. Antunez, H. Molina Abril, W. Kropatsch:
"Representing the Surface of Objects by Combinatorial Pyramids";
Vortrag: Computer Vision Winter Workshop 2010, Nove Hrady; 03.02.2010 - 05.02.2010; in: "Proceedings of the 15th Computer Vision Winter Workshop", Libor {\v S}pa{\v c}ek and Vojt{\v e}ch Franc, Czech Society for Cybernetics and Informatics, and the Center of Machine Perception at CTU Prague/Nov\'e Hrady, Cz (2010), ISBN: 978-80-254-6499-1; S. 85 - 90.

Abstract This paper introduces a new method to rep-
resent the surface of objects using two dimensional com-
binatorial maps. The classical de nition of two dimen-
sional combinatorial maps is extended here by adding
a \back face" that corresponds to the non{visible part
of the object. As a rst step, every object in the scene
is extracted in one image pyramid, where levels are re-
lated by means of coordinates. Finally, an algorithm
to complete the description of the surface is presented.
Such representation is translation, rotation and scale
invariant. It will allow to update information about
movements and parts of the object that become visible,
reducing the complexity and the computational time.