76 search results - page 6 / 16 » Querying Spatial Databases via Topological Invariants |
CVPR
1997
IEEE
13 years 11 months ago
1997
IEEE
We describe a new multi-phase, color-based image retrieval system, FOCUS Fast Object Color-based qUery System , with an online user interface which is capable of identifying mult...
GIS
2004
ACM
14 years 8 months ago
2004
ACM
In the geometric data model [6], spatio-temporal data are modelled as a finite collection of triangles that are transformed by time-dependent affinities. To facilitate querying an...
GIS
2007
ACM
13 years 11 months ago
2007
ACM
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...
GIS
2005
ACM
14 years 8 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
Querying by Visual Thesaurus (VT) is a novel paradigm for content-based image retrieval approaches for it gives the user the possibility, in case of inappropriate starting example...