4526 search results - page 632 / 906 » An overview of clustering methods |
151
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CVPR
2007
IEEE
16 years 8 months ago
2007
IEEE
A visual word lexicon can be constructed by clustering primitive visual features, and a visual object can be described by a set of visual words. Such a "bag-of-words" re...
152
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CVPR
2007
IEEE
16 years 8 months ago
2007
IEEE
In this paper we present two contributions to improve accuracy and speed of an image search system based on bag-of-features: a contextual dissimilarity measure (CDM) and an effici...
184
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ECCV
2008
Springer
16 years 8 months ago
2008
Springer
Each facial event will give rise to complex facial appearance variation. In this paper, we propose similarity features to describe the facial appearance for video-based facial even...
164
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ECCV
2008
Springer
16 years 8 months ago
2008
Springer
Abstract. We propose a fully automatic framework to detect and extract arbitrary human motion volumes from real-world videos collected from YouTube. Our system is composed of two s...
183
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ICPR
2008
IEEE
16 years 8 months ago
2008
IEEE
Learning typical motion patterns or activities from videos of crowded scenes is an important visual surveillance problem. To detect typical motion patterns in crowded scenarios, w...