A Quantitative Assessment of LIDAR Data Accuracy

Airborne laser scanning sensors are impressive in their ability to collect a large number of topographic points three dimensions very short time thus providing high-resolution depiction complex objects the scanned areas. The quality any final product naturally depends on original data and methods generating it. Thus, should be evaluated before assessing its products. In this research, detailed evaluation LIDAR system is presented, quantified. This area has been under-emphasized much published work applications airborne data. done by field surveying. results address both planimetric height accuracy average discrepancy elevations from surveyed study 0.12 m. general, RMSE horizontal offsets approximately 0.50 Both relative absolute discrepancies have two components variation. first component random short-period variation while second less significant frequency biases geo-positioning system.