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논문검색

A New Directional Relation Model

초록

영어

Formal model of spatial directional relation is one of the most important parts in the area of spatial relation, and it is necessary to develop a new model with high generality and practicality. Firstly this paper analyzes the characteristics and disadvantages of the present models. Secondly it introduces in detail the basic notion and construction method of quadtree histogram。Thirdly a new approach to judging basic and special spatial directional relations based on quadtree histogram is proposed. Finally in order to prove the correctness of this model, several examples are given. The experimental results show that this model is feasible.

목차

Abstract
 1. Introduction
 2. Spatial Directional Relation
  2.1. The Notion of Directional Relation
  2.2. Existing Formal Models of Directional Relation
 3. The Model of Spatial Directional Relation based on Quadtree Histogram
  3.1. Quad-tree Histogram
  3.2. The Judgment Approach of the Basic Directional Relation
  3.3. The Judgment Approach of the Special Directional Relation
 4. Experimental Results
 5. Conclusion
 Acknowledgements
 References

저자정보

  • Ke Zhang Department of Electronic and Communication Engineering North China Electric Power University, Baoding, China
  • Tao Liu Department of Electronic and Communication Engineering North China Electric Power University, Baoding, China
  • Zhong Li Department of Electronic and Communication Engineering North China Electric Power University, Baoding, China
  • Wei Zhao Department of Electronic and Communication Engineering North China Electric Power University, Baoding, China

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