A Study on the Accuracy of Building Boundary and Elevation Extracted from HyBrid Aerial LiDAR

Key Points

• This research aims to analyze the accuracy of building boundaries and elevations obtained from a hybrid aerial LiDAR system compared to traditional sensors.
• Compared building boundary and elevation data from a hybrid aerial LiDAR with traditional measurement values.
• Analyzed data from 15 buildings categorized by height (above and below 80m).
• Measured horizontal and vertical accuracy using root mean square error (RMSE) metrics.
• Horizontal position RMSE was 0.153m, and vertical RMSE was 0.151m, indicating high accuracy.
• Precision improvements: approximately 45.4% in horizontal and 66.6% in vertical for high-rise buildings compared to existing methods.
• For low-rise buildings, improvements were approximately 61.1% horizontally and 64.6% vertically.

Abstract