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» Quadrangulations of Planar Sets
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ICIP
1997
IEEE
14 years 10 months ago
SVD and log-log frequency sampling with Gabor kernels for invariant pictorial recognition
This paper presents an e cient scheme for a neinvariant object recognition. A ne invariance is obtained by a representation which is based on a new sampling con guration in the fr...
Zhiqian Wang, Jezekiel Ben-Arie
VIS
2007
IEEE
103views Visualization» more  VIS 2007»
14 years 10 months ago
Generalized Streak Lines: Analysis and Visualization of Boundary Induced Vortices
Abstract--We present a method to extract and visualize vortices that originate from bounding walls of three-dimensional timedependent flows. These vortices can be detected using th...
Alexander Wiebel, Xavier Tricoche, Dominic Schne...
VIS
2004
IEEE
146views Visualization» more  VIS 2004»
14 years 10 months ago
Tracking of Vector Field Singularities in Unstructured 3D Time-Dependent Datasets
In this paper, we present an approach for monitoring the positions of vector field singularities in time-dependent datasets. The concept of singularity index is discussed and exte...
Christoph Garth, Xavier Tricoche, Gerik Scheuerman...
ISBI
2006
IEEE
14 years 10 months ago
Landmark matching on the sphere using distance functions
Nonlinear registration of 3D surfaces is important in many medical imaging applications, including the mapping of longitudinal changes in anatomy, or of multi-subject functional M...
Natasha Lepore, Alex D. Leow, Paul M. Thompson
CHI
2009
ACM
14 years 9 months ago
Graph sketcher: extending illustration to quantitative graphs
Scientists, engineers, and educators commonly need to make graphs that quickly illustrate quantitative ideas yet are not based on specific data sets. We call these graphs quantita...
Robin Stewart, m. c. schraefel