16 search results - page 2 / 4 » Degrees of Monotonicity of Spatial Transformations |
TSP
2008
13 years 5 months ago
2008
This paper proposes a novel feature-based invariant descriptor termed Radon composite features (RCFs) for planar shapes. Instead of analyzing shapes directly in the spatial domain,...
SSD
2007
Springer
2007
Springer
Blind Evaluation of Nearest Neighbor Queries Using Space Transformation to Preserve Location Privacy
13 years 11 months ago
In this paper we propose a fundamental approach to perform the class of Nearest Neighbor (NN) queries, the core class of queries used in many of the location-based services, withou...
ICPR
2004
IEEE
14 years 6 months ago
2004
IEEE
Abstract. This paper presents a set of image operators for detecting regions in space-time where interesting events occur. To define such regions of interest, we compute a spatio-t...
SSD
2001
Springer
13 years 9 months ago
2001
Springer
Like people who casually assess similarity between spatial scenes in their routine activities, users of pictorial databases are often interested in retrieving scenes that are simil...
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CVPR
2012
IEEE
11 years 7 months ago
2012
IEEE
A novel approach for event summarization and rare event detection is proposed. Unlike conventional methods that deal with event summarization and rare event detection independently...