922 search results - page 30 / 185 » Unsupervised detection of contours using a statistical model |
CVPR
2008
IEEE
15 years 11 months ago
2008
IEEE
We present a novel method for the discovery and detection of visual object categories based on decompositions using topic models. The approach is capable of learning a compact and...
MICCAI
2003
Springer
15 years 10 months ago
2003
Springer
Abstract. When developing statistical models of normal brain perfusion, two questions are of crucial interest: How well does an atlas describe normality and how sensitive is it at ...
CVPR
2005
IEEE
15 years 11 months ago
2005
IEEE
We propose an approximate Bayesian approach for unsupervised feature selection and density estimation, where the importance of the features for clustering is used as the measure f...
ICASSP
2009
IEEE
15 years 4 months ago
2009
IEEE
We introduce a regularized kernel-based rule for unsupervised change detection based on a simpler version of the recently proposed kernel Fisher discriminant ratio. Compared to ot...
ICNC
2005
Springer
15 years 3 months ago
2005
Springer
In this paper, we review a visual approach and propose it for analysing computer-network activity, which is based on the use of unsupervised connectionist neural network models and...