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Development of a Portable Multi-sensor System for Geo-referenced Images and its Accuracy Evaluation  

Lee, Ji-Hun (서울시립대학교 대학원 공간정보공학과)
Choi, Kyoung-Ah (서울시립대학교 대학원 공간정보공학과)
Lee, Im-Pyeong (서울시립대학교 도시과학대학 공간정보공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.28, no.6, 2010 , pp. 637-643 More about this Journal
Abstract
In this study, we developed a Portable Multi-sensor System, which consists of a video camera, a GPS/MEMS IMU and a UMPC to acquire video images and position/attitude data. We performed image georeferencing based on the bundle adjustment without ground control points using the acquired data and then evaluated the effectiveness of our system through the accuracy verification. The experimental results showed that the RMSE of relative coordinates on the ground point coordinates obtained from our system was several centimeters. Our system can be efficiently utilized to obtain the 3D model of object and their relative coordinates. In future, we plan to improve the accuracy of absolute coordinates through the rigorous calibration of the system and camera.
Keywords
Portable Multi Sensor System; Image geo-referencing; Video camera; GPS/MEMS IMU;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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