A Methodology for Extraction Building Facades from VLS

The components and position principle of vehicle-borne LIDAR system are expatiated. Based on the previous experience a new method for automated extraction of building facades from VLS was put forward. It adopt image segmentation and contour extraction tracing to extract building boundaries in the geo-referenced feature image. the existing methods of RANSAC, point cloud segmentation, feature extraction are analyzed, At last the experimental results show that the proposed method provides useful and valid solution for automatically extracting building footprints from mobile LIDAR point clouds.