272 search results - page 12 / 55 » Unsupervised Learning of Hierarchical Spatial Structures In ... |
CVPR
2008
IEEE
15 years 23 days ago
2008
IEEE
Parameterized Appearance Models (PAMs) (e.g. eigentracking, active appearance models, morphable models) use Principal Component Analysis (PCA) to model the shape and appearance of...
ICCV
2007
IEEE
15 years 21 days ago
2007
IEEE
We develop nonparametric Bayesian models for multiscale representations of images depicting natural scene categories. Individual features or wavelet coefficients are marginally de...
IROS
2009
IEEE
14 years 5 months ago
2009
IEEE
—This paper presents a novel appearance-based technique for qualitative spatial localization. A vocabulary of visual words is built automatically, representing local features tha...
CVPR
2007
IEEE
14 years 5 months ago
2007
IEEE
Manifold learning methods are promising data analysis tools. However, if we locate a new test sample on the manifold, we have to find its embedding by making use of the learned e...
ICIP
2004
IEEE
15 years 11 days ago
2004
IEEE
The work presents the first effort to automatically annotate the semantic meanings of temporal video patterns obtained through unsupervised discovery processes. This problem is in...