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ICASSP
2008
IEEE
14 years 1 months ago
Performance and robustness: A trade-off in dynamic signature verification
A performance and robustness study for on-line signature veri cation is presented. Experiments are carried out on the MCYT database comprising 16,500 signatures from 330 subjects,...
Javier Galbally, Julian Fiérrez, Javier Ort...
COMPGEOM
2007
ACM
13 years 11 months ago
Bi-criteria linear-time approximations for generalized k-mean/median/center
We consider the problem of approximating a set P of n points in Rd by a collection of j-dimensional flats, and extensions thereof, under the standard median / mean / center measur...
Dan Feldman, Amos Fiat, Micha Sharir, Danny Segev
DGCI
2006
Springer
13 years 11 months ago
On Minimal Perimeter Polyminoes
This paper explores proofs of the isoperimetric inequality for 4-connected shapes on the integer grid Z2 , and its geometric meaning. Pictorially, we discuss ways to place a maxima...
Yaniv Altshuler, Vladimir Yanovski, Daniel Vainsen...
CVPR
2008
IEEE
14 years 1 months ago
Recovering Shape Characteristics on Near-flat Specular Surfaces
We consider the problem of capturing shape characteristics on specular (refractive and reflective) surfaces that are nearly flat. These surfaces are difficult to model using tradit...
Yuanyuan Ding and Jingyi Yu
MICCAI
2005
Springer
14 years 8 months ago
Fiber Tract-Oriented Statistics for Quantitative Diffusion Tensor MRI Analysis
Diffusion tensor imaging (DTI) has become the major modality to study properties of white matter and the geometry of fiber tracts of the human brain. Clinical studies mostly focus ...
Isabelle Corouge, P. Thomas Fletcher, Sarang C. Jo...