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This paper presents a QEM-based simplification approach for extracting and delineating building footprints from Airborne LiDAR data. Our approach consists of three steps: first of all, Digital Surface Model (DSM) is generated from the raw point cloud by using the interpolation method. Secondly, the potential points on building outlines have to be aggregated to form connected building blobs. Those...
Fast and reliable building damage analysis is crucial for survivors rescue and disaster management when a destructive natural disaster occurs which helps to limit life losses. For this purpose, a method was developed in this paper to extract building's geometric axis line from aerial LiDAR data which helps to do further building damage analysis like to identify inclined buildings. To extract building's...
Recent years LiDAR data is widely used for constructing 3D terrain models which provide realistic impressions of the urban environment. This paper presents an automatic method for extracting 3D building model by the fusion of LiDAR data, 2D building outlines and orthoimage. 2D building outlines is generated by classifying the LiDAR data to terrain and off-terrain points, then detecting building edges...
In recent years, with new services expected, such as navigation systems, location based services, and augmented reality, the need for automatically, efficient 3D building reconstruction systems becomes more urgent than ever. As a new spatial information technology, airborne LiDAR is widely used for the acquisition of 3D objects on the earth. The automatic reconstruction of 3D buildings from airborne...
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