Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference (한국측량학회:학술대회논문집)
- 2004.04a
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- Pages.15-26
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- 2004
The Evaluation of Accuracy for Airborne Laser Surveying via LiDAR System Calibration
시스템 초기화(Calibration)에 따른 항공레이저측량의 정확도 평가
Abstract
The calibration for systematic error in LiDAR is crucial for the accuracy of airborne laser scanning. The main error is the misalignment of platforms between INS(Inertial Navigation System) and Laser scanner For planimetrical calibration of LiDAR, the building is good feature which has great changes in height and continuous flat area in the top. The planimetry error(pitch, roll) is corrected by adjustment of height which is calculated from comparing ground control points(GCP) of building to laser scanning data. We can know scale correction of laser range by the comparison of LiDAR data and GCP is arranged at the end of scan angle where maximize the height error. The area for scale calibration have to be large flat and have almost same elevation. At 1000m for average flying height, The Accuracy of laser scanning data using LiDAR is within 110cm in height and
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