134 search results - page 21 / 27 » Approximate Nearest Neighbor Queries in Fixed Dimensions |
CVPR
2005
IEEE
15 years 11 months ago
2005
IEEE
Sets of local features that are invariant to common image transformations are an effective representation to use when comparing images; current methods typically judge feature set...
COMPGEOM
2005
ACM
14 years 11 months ago
2005
ACM
We present a new multi-dimensional data structure, which we call the skip quadtree (for point data in R2) or the skip octree (for point data in Rd, with constant d > 2). Our da...
CVPR
2007
IEEE
15 years 11 months ago
2007
IEEE
Matching local features across images is often useful when comparing or recognizing objects or scenes, and efficient techniques for obtaining image-to-image correspondences have b...
71
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ICIP
2004
IEEE
15 years 11 months ago
2004
IEEE
In many image or video retrieval systems, the search of similar objects in the database includes a spatial access method to a multidimensional feature space. This step is generall...
162
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ICDE
2002
IEEE
15 years 11 months ago
2002
IEEE
We investigate techniques for analysis and retrieval of object trajectories in a two or three dimensional space. Such kind of data usually contain a great amount of noise, that ma...