Table of Contents
Similarity Assessment between Cardinal Directions
Qualitative Directions
Cone-based Models
Cone-based Models
Projection-based Models
Need for a Direction Model for Extended Objects
Directions in Queries over Spatial Databases
Directions in Spatial Reasoning
Directions between Geographic Objects
Direction in Multi-Resolution Spatial Databases
Direction in Content-Based Retrieval
A Comparison of the Direction Models for Extended Objects
Coarse Direction-Relation Matrix for Regions
Detailed Direction-Relation Matrix
Detailed Direction-Relation Matrix
Detailed Direction-Relation Matrix
Similarity Assessment between Directions
Conceptual Neighbors of Nine Cardinal Directions
Distance between Nine Cardinal Directions
Assessment Method
Similarity Value
A Direction Comparison System
Rotating Object B2 in Scene 2
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Another Example
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Conclusions
References
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