105 search results - page 9 / 21 » A Window Retrieval Algorithm for Spatial Databases Using Qua... |
COMPSAC
2002
IEEE
14 years 21 days ago
2002
IEEE
In this paper, an effective content-based visual image retrieval system is presented. This system consists of two main components: visual content extraction and indexing, and quer...
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
We propose in this paper a general kernel framework to deal with database object retrieval embedded in images with heterogeneous background. We use local features computed on fuzz...
JCDL
2004
ACM
14 years 1 months ago
2004
ACM
Automatic generation of semantic metadata describing spatial relations is highly desirable for image digital libraries. Relative spatial relations between objects in an image conv...
PODS
1989
ACM
13 years 11 months ago
1989
ACM
In this paper we propose the use of fractals and especially the Hilbert curve, in order to design good distance-preserving mappings. Such mappings improve the performance of secon...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Spatial database operations are typically performed in two steps. In the filtering step, indexes and the minimum bounding rectangles (MBRs) of the objects are used to quickly dete...