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PRL
2007
89views more  PRL 2007»
13 years 11 months ago
Segmentation of heterogeneous blob objects through voting and level set formulation
Blob-like structures occur often in nature, where they aid in cueing and the pre-attentive process. These structures often overlap, form perceptual boundaries, and are heterogeneo...
Hang Chang, Qing Yang, Bahram Parvin
PRL
2007
125views more  PRL 2007»
13 years 11 months ago
Combining color and spatial information for object recognition across illumination changes
One of the most widely used approaches in the context of object recognition across illumination changes consists in comparing the images by means of the intersection between invar...
Damien Muselet, Ludovic Macaire
PRL
2007
108views more  PRL 2007»
13 years 11 months ago
Towards a measure of deformability of shape sequences
In this paper we develop a theory for characterizing how deformable a shape is given a sequence of its observations. We define a term called ‘‘deformability index’’ (DI) ...
Amit K. Roy Chowdhury
PRL
2007
154views more  PRL 2007»
13 years 11 months ago
Regularized mixture discriminant analysis
Abstract – In this paper we seek a Gaussian mixture model (GMM) of the classconditional densities for plug-in Bayes classification. We propose a method for setting the number of ...
Zohar Halbe, Mayer Aladjem
PRL
2007
164views more  PRL 2007»
13 years 11 months ago
Retrieval of objects in video by similarity based on graph matching
In this paper, we tackle the problem of matching of objects in video in the context of the rough indexing paradigm. The approach developed is based on matching of region adjacency...
F. Chevalier, Jean-Philippe Domenger, Jenny Benois...
PRL
2007
150views more  PRL 2007»
13 years 11 months ago
A method for initialising the K-means clustering algorithm using kd-trees
We present a method for initialising the K-means clustering algorithm. Our method hinges on the use of a kd-tree to perform a density estimation of the data at various locations. ...
Stephen J. Redmond, Conor Heneghan
PRL
2007
140views more  PRL 2007»
13 years 11 months ago
Introducing a very large dataset of handwritten Farsi digits and a study on their varieties
A very large dataset of handwritten Farsi digits is introduced. Binary images of 102,352 digits were extracted from about 12,000 registration forms of two types, filled by B.Sc. ...
Hossein Khosravi, Ehsanollah Kabir
PRL
2007
209views more  PRL 2007»
13 years 11 months ago
Rigid and non-rigid face motion tracking by aligning texture maps and stereo 3D models
Accurate rigid and non-rigid tracking of faces is a challenging task in computer vision. Recently, appearance-based 3D face tracking methods have been proposed. These methods can ...
Fadi Dornaika, Angel Domingo Sappa
PRL
2007
287views more  PRL 2007»
13 years 11 months ago
2D and 3D face recognition: A survey
Government agencies are investing a considerable amount of resources into improving security systems as result of recent terrorist events that dangerously exposed flaws and weakn...
Andrea F. Abate, Michele Nappi, Daniel Riccio, Gab...
PRL
2007
98views more  PRL 2007»
13 years 11 months ago
Error probabilities for local extrema in gene expression data
Current approaches for the prediction of functional relations from gene expression data often do not have a clear methodology for extracting features and are not accompanied by a ...
Perry Groot, Christian Gilissen, Michael Egmont-Pe...