Development of a Portable Multi-sensor System for geo-referenced images and its accuracy evaluation

Jihun Lee, Kyoungah Choi, Impyeong Lee

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)637-643
Number of pages7
JournalJournal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
Volume28
Issue number6
StatePublished - 2010

Keywords

  • GPS/MEMS IMU
  • Image geo-referencing
  • Portable Multi Sensor System
  • Video camera

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