Sciweavers

54 search results - page 1 / 11
» Representing Rotations and Orientations in Geometric Computi...
Sort
View
CGA
2008
13 years 4 months ago
Representing Rotations and Orientations in Geometric Computing
Geometric computing with three-dimensional rotations and orientations is a fundamental issue in three-dimensional computer graphics. Our approach was inspired by affine geometry a...
Jehee Lee
GIS
2008
ACM
14 years 5 months ago
Indexing planar point quartets via geometric attributes
An index is devised to support position-independent search for images containing quartets of icons. Point quartets exist that do not unambiguously map to quadrilaterals, however, ...
Charles Ben Cranston, Hanan Samet
TCS
2008
13 years 4 months ago
Curves and surfaces represented by polynomial support functions
This paper studies shapes (curves and surfaces) which can be described by (piecewise) polynomial support functions. The class of these shapes is closed under convolutions, offsett...
Zbynek Sír, Jens Gravesen, Bert Jüttle...
ICPR
2006
IEEE
14 years 5 months ago
Rotation-Invariant Neoperceptron
Approaches based on local features and descriptors are increasingly used for the task of object recognition due to their robustness with regard to occlusions and geometrical defor...
Beat Fasel, Daniel Gatica-Perez
CORR
2006
Springer
242views Education» more  CORR 2006»
13 years 4 months ago
Matching Edges in Images ; Application to Face Recognition
: This communication describes a representation of images as a set of edges characterized by their position and orientation. This representation allows the comparison of two images...
Joël Le Roux, Philippe Chaurand, Mickael Urru...