Determining position of ship with UAV multi-sensory data at marine area

Every year, at marine area, a lot of accidents and illegal fishing work are take place. In order to alleviate human life and property damage being occurred thereby, remote monitoring means are required. Among these, UAV (Unmanned Aerial Vehicle) is a platform that is economical and has excellent temporality compared with other monitoring means like satellite, radar, manned aerial vehicle. In order to determine position of ship that is main marine monitoring object, multi-sensor system of UAV may be used. In this study, by using such system, a method of determining ship position is intended to be suggested. Ship position is determined by using collinearity equation after determining image position in global coordinates through image and GPS/IMU data pre-processing and georeferencing process. Suggested method was applied to test data acquired from the ocean. Ship position was determined as 4.773m at altitude of 200m, 9.761m at altitude of 350m, 14.150m at altitude of 500m. It is considered that by using suggested method, ship positioning is able to be fully performed by using UAV and it is expected that ship monitoring could be performed effectively at marine area.