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CVPR
2005
IEEE
14 years 7 months ago
A SIFT Descriptor with Global Context
Matching points between multiple images of a scene is a vital component of many computer vision tasks. Point matching involves creating a succinct and discriminative descriptor fo...
Eric N. Mortensen, Hongli Deng, Linda G. Shapiro
SIGGRAPH
1994
ACM
13 years 9 months ago
The irradiance Jacobian for partially occluded polyhedral sources
The irradiance at a point on a surface due to a polyhedral source of uniform brightness is given by a well-known analytic formula. In this paper we derive the corresponding analyt...
James Arvo
ISVC
2009
Springer
14 years 10 days ago
Cross-Correlation and Rotation Estimation of Local 3D Vector Field Patches
In this paper, we present a method for the fast and accurate computation of the local cross-correlation of 3D vectorial data. Given spherical patches of 3D vector fields, our meth...
Janis Fehr, Marco Reisert, Hans Burkhardt
PAMI
2011
13 years 22 days ago
Learning Linear Discriminant Projections for Dimensionality Reduction of Image Descriptors
This paper proposes a general method for improving image descriptors using discriminant projections. Two methods based on Linear Discriminant Analysis have been recently introduce...
Hongping Cai, Krystian Mikolajczyk, Jiri Matas
VISSYM
2003
13 years 7 months ago
Feature Flow Fields
Feature tracking algorithms for instationary vector fields are usually based on a correspondence analysis of the features at different time steps. This paper introduces a method ...
Holger Theisel, Hans-Peter Seidel