Airborne LIDAR building detection method based on volume element segmentation

The invention proposes an airborne LIDAR building detection method based on volume element segmentation, and the method comprises the steps: reading original airborne LIDAR point cloud data, and forming an original airborne LIDAR point cloud data set; regularizing the original airborne LIDAR point cloud data into a gray 3D volume element data set; segmenting the gray 3D volume element data based on connectivity and a radiation characteristic similarity rule, and marking the segmented gray 3D volume element data as a plurality of 3D connected regions; sequentially detecting 3D connected regionsformed by the roof and vertical planes of a building based on the characteristics of the roof and vertical planes of the building, and completing the airborne LIDAR building detection based on the volume element segmentation. The method makes good use of the hidden neighborhood relation of all volume elements in the 3D volume element data and the characteristics of the building, and facilitates the development of the air