DSM GENERATION METHOD USING LIDAR AND AERIAL IMAGES DATA

摘要

PURPOSE: A DSM generation method using an LIDAR and aerial Images data is provided to improve the accuracy over image matching by performing image matching of compensated aerial images through a planar patch generated from LIDAR data. CONSTITUTION: A geometric error of aerial images and LIDAR(Light Detection And Ranging) is minimized(S10), and a ground point is extracted from an aerial image(S12). A planar patch is generated from LIDAR data(S13), and an external expression element is gradually compensated(S15). Image points indicating identical ground point is detected from a duplicated aerial image(S20), and a DSM(Digital Surface Model) is generated by the matched aerial images and the matched aerial images and LIDAR data(S30).