대한원격탐사학회:학술대회논문집 (Proceedings of the KSRS Conference)
- 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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- Pages.612-614
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- 2003
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- 1226-9743(pISSN)
Topological Relationship Operators on 4D Moving Object Databases
- Jun, Sung-Woo (Database Laboratory of Computer Science Department, Chungbuk National University) ;
- Kim, Sang-Ho (Database Laboratory of Computer Science Department, Chungbuk National University) ;
- Park, Jin-Soo (Chongju University) ;
- Ryu, Keun-Ho (Database Laboratory of Computer Science Department, Chungbuk National University)
- 발행 : 2003.11.03
초록
In this paper we propose four-dimensional (4D) operators, which can be used to deal with sequential changes of topological relationships between 4D moving objects and we call them 4D development operators. In contrast to the existing operators, we can apply the operators to real applications on 4D moving objects. We also propose a new approach to define them. The approach is based on a dimension-separated method, which considers x-y coordinates and z coordinates separately. In order to show the applicability of our operators we show the algorithms for the proposed operators and development graph between 4D moving objects.