84 search results - page 5 / 17 » Unsupervised Learning of Visual Feature Hierarchies |
ICPR
2008
IEEE
15 years 3 months ago
2008
IEEE
Visual dictionaries are widely employed in object recognition to map unordered bags of local region descriptors into feature vectors for image classification. Most visual dictiona...
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CVPR
2009
IEEE
16 years 4 months ago
2009
IEEE
Scalable image retrieval systems usually involve hierarchical quantization of local image descriptors, which produces a visual vocabulary for inverted indexing of images. Although ...
CVPR
2007
IEEE
15 years 11 months ago
2007
IEEE
In this paper we propose to use lexical semantic networks to extend the state-of-the-art object recognition techniques. We use the semantics of image labels to integrate prior kno...
CVPR
2008
IEEE
15 years 11 months ago
2008
IEEE
We propose an approach for learning visual models of object categories in an unsupervised manner in which we first build a large-scale complex network which captures the interacti...
CVPR
2007
IEEE
15 years 11 months ago
2007
IEEE
We propose a novel unsupervised learning framework for activity perception. To understand activities in complicated scenes from visual data, we propose a hierarchical Bayesian mod...