대한원격탐사학회:학술대회논문집 (Proceedings of the KSRS Conference)

대한원격탐사학회 (Korean Society of Remote Sensing)
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PROJECTION OF TRAJECTORY FOR SUPPORTING UNCERTAINTY FUTURE TIME OF MOVING OBJECT

  • Won Ho-Gyeong (Database/Bioinformatics Laboratory, Chungbuk National University) ;
  • Jung Young Jin (Database/Bioinformatics Laboratory, Chungbuk National University) ;
  • Lee Yang Koo (Database/Bioinformatics Laboratory, Chungbuk National University) ;
  • Park Mi (Database/Bioinformatics Laboratory, Chungbuk National University) ;
  • Kim Hak-cheol (Electronics and Telecommunications Research Institute(ETRI)) ;
  • Ryu Keun Ho (Database/Bioinformatics Laboratory, Chungbuk National University)
  • 발행 : 2005.10.01
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초록

Uncertainty of objects in Moving Object Database is a coherent property. It has been discussed in a lot of researches on modelling and query processing. The previous studies assume that uncertain future time is determined through utilizing recent speed and direction of vehicles. This method is simple and useful for estimating the time of the near future location. However, it is not appropriate when we estimate the time of the far future location. Therefore, in this paper, we propose a concept of planned route. It is used to estimate uncertain future time, which has to be located at a given point. If the route of an object is planned beforehand its locations are uncertainly distributed near that route. By a simple projection operation, the probability that a location lies in the planned route is increased. Moreover, we identify the future time of an object based on the speed for passing the route, which is offered via a website.

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