A METHOD AND A SYSTEM FOR GENERATING 3-DIMENSIONAL GEOGRAPHICAL INFORMATION USING AERIAL LIDAR INFORMATION AND DIGITAL AERIAL PHOTOGRAPH INFORMATION

摘要

PURPOSE: A method and a system for generating 3-dimensional geographical information using aerial LADAR information and digital aerial photograph information are provided to reduce a cost by automatically generating a building/road numerical value layer and planarized three-dimensional geometrical information through a digital aerial photo information and aerial LADAR information. CONSTITUTION: An elevation information extractor extracts elevation information from aerial LIDAR(Light Detection And Ranging) information(S530), and a three-dimensional object information generator generates three-dimensional building object information through 2D building object information of two-dimensional object information generator and the elevation information(S570). A planarization coordinate information acquisition unit obtains planarization coordinate information, and a planarization unit corrects the elevation information of the building object through the planarized coordinate information of the building object(S582). A three-dimensional image output unit outputs three-dimensional geographical information(S590).