A constraint-based approach to shape management in multimedia databases
Multimedia Systems
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
An Intelligent Image Database System
IEEE Transactions on Software Engineering
The Terminological Image Retrieval Model
ICIAP '97 Proceedings of the 9th International Conference on Image Analysis and Processing-Volume II
NeTra: a toolbox for navigating large image databases
ICIP '97 Proceedings of the 1997 International Conference on Image Processing (ICIP '97) 3-Volume Set-Volume 1 - Volume 1
IEEE Transactions on Software Engineering
A scheme for integrating concrete domains into concept languages
IJCAI'91 Proceedings of the 12th international joint conference on Artificial intelligence - Volume 1
Generalizing term subsumption languages to fuzzy logic
IJCAI'91 Proceedings of the 12th international joint conference on Artificial intelligence - Volume 1
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We present a simple description logic for semantic indexing in image retrieval. The language allows to describe complex shapes as composition of more simple ones, using geometric transformations to describe the relative positions of shape components. An extensional semantics is provided, which allows us to formally define reasoning services -such as recognition, subsumption, and satisfiability - and to study the computational properties of the formalism. The logic is devised for exact recognition of complex shapes, but it can be extended to include similarity degrees.