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Automatic Construction of Building Footprints From Airborne LIDAR Data

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3 Author(s)
Keqi Zhang ; Int. Hurricane Res. Center, Florida Int. Univ., Miami, FL ; Jianhua Yan ; Shu-Ching Chen

This paper presents a framework that applies a series of algorithms to automatically extract building footprints from airborne light detection and ranging (LIDAR) measurements. In the proposed framework, the ground and nonground LIDAR measurements are first separated using a progressive morphological filter. Then, building measurements are identified from nonground measurements using a region-growing algorithm based on the plane-fitting technique. Finally, raw footprints for segmented building measurements are derived by connecting boundary points, and the raw footprints are further simplified and adjusted to remove noise caused by irregularly spaced LIDAR measurements. Data sets from urbanized areas including large institutional, commercial, and small residential buildings were employed to test the proposed framework. A quantitative analysis showed that the total of omission and commission errors for extracted footprints for both institutional and residential areas was about 12%. The results demonstrated that the proposed framework identified building footprints well

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:44 ,  Issue: 9 )