吉林大学学报(工学版) ›› 2009, Vol. 39 ›› Issue (05): 1292-1296.

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Detailed topological relation model of directed line objects

WANG Sheng-sheng1, WANG Zhao-dan1, LIU Da-you1, LI Xin2, ZHANG Hui-jie3   

  1. 1.College of Computer Science and Technology, Jilin University, Changchun 130012, China|2.Software College of Jilin University| Changchun 130012, China|3.College of Computer Science| Northeast Normal University|Changchun |130117, China
  • Received:2008-04-08 Online:2009-09-01 Published:2009-09-01

Abstract:

    According to the characteristics of directed line objects, such as track, a detailed topological relation model is proposed, thus the complex details can be captured. First, DLO matrix is defined based on the 4intersection method of spatial reasoning. Then, by apply the intersection types to DLO, the DDLO model with rich spatial semantics is obtained. Finally, the analysis and comparison with classical models (HBT etc.) show that DDLO can precisely describe the detailed intersection of directed line objects and distinguish intersection and tangency, while HBT can only distinguish fixed 68 simple relations.

Key words: artificial intelligence, spatiotemporal reasoning, directed line objects, detailed topological relation model

CLC Number: 

  • TP182
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