428 search results - page 53 / 86 » Unsupervised mammograms segmentation |
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IPAS
2010
14 years 7 months ago
2010
In this paper, we consider facial expression recognition using an unsupervised learning framework. Specifically, given a data set composed of a number of facial images of the same...
AVSS
2009
IEEE
15 years 4 months ago
2009
IEEE
We present a novel unsupervised inter-camera trajectory correspondence algorithm that does not require prior knowledge of the camera placement. The approach consists of three step...
JIIS
2002
14 years 9 months ago
2002
Abstract. We propose a novel probabilistic method, based on latent variable models, for unsupervised topographic visualisation of dynamically evolving, coherent textual information...
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CVPR
2005
IEEE
15 years 11 months ago
2005
IEEE
This paper introduces a formulation which allows using wavelet-based priors for image segmentation. This formulation can be used in supervised, unsupervised, or semisupervised mod...
ECCV
2010
Springer
15 years 4 days ago
2010
Springer
Unsupervised learning requires a grouping step that defines which data belong together. A natural way of grouping in images is the segmentation of objects or parts of objects. Whi...