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http://dx.doi.org/10.7780/kjrs.2018.34.2.2.7

Ship Positioning Using Multi-Sensory Data for a UAV Based Marine Surveillance  

Ryu, Hyoungseok (Department of Geoinformatics, University of Seoul)
Klimkowska, Anna Maria (Department of Geoinformatics, University of Seoul)
Choi, Kyoungah (Department of Geoinformatics, University of Seoul)
Lee, Impyeong (Department of Geoinformatics, University of Seoul)
Publication Information
Korean Journal of Remote Sensing / v.34, no.2_2, 2018 , pp. 393-406 More about this Journal
Abstract
Every year in the ocean, various accidents occur frequently and illegal fishing is rampant. Moreover, their size and frequency are also increasing. In order to reduce losses of life or property caused by these, it is necessary to have a means to perform remote monitoring quickly. As an effective platform of such monitoring means, an Unmanned Aerial Vehicle (UAV) is receiving the spotlight. In these situations where marine accidents or illegal fishing occur, main targets of monitoring are ships. In this study, we propose a UAV based ship monitoring system and suggest a method of determining ship positions using UAV multi-sensory data. In the proposed method, firstly, the position and attitude of individual images are determined by using the pre-performed system calibration results and GPS/INS data obtained at the time when images were acquired. In addition, after the ship being detected automatically or semi-automatically from the individual images, the absolute coordinates of the detected ships are determined. The proposed method was applied to actual data measured at 200 m, 350 m, and 500 m altitude, the ship position can be determined with accuracy of 4.068 m, 8.916 m, and 13.734 m, respectively. According to the minimum standard of a hydrographical survey, the ship positioning results of 200 m and 350 m data satisfy grade S and the results of 500 m data do grade 1a, where the accuracy is required for positioning the coastline and topography less significant to navigation order. Therefore, it is expected that the proposed method can be effectively used for various purposes of marine monitoring or surveying.
Keywords
Ship Positioning; UAV; Multi-sensor; direct georeferencing; system calibration;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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