AIR AND GROUND COMBINED INTERTIDAL ZONE INTEGRATED MAPPING METHOD

摘要

An air and ground combined intertidal zone integrated mapping method. After original data is acquired and downloaded, point cloud spatiotemporal fusion is performed to complete transformation from an instrument coordinate system to an earth-centered earth-fixed coordinate system; a correspondence is established by obtaining point, line, plane and other geometric characteristics between single beam point cloud and laser scanner point cloud data and between laser scanner point cloud and airborne laser detection and measurement system point cloud data, so as to solve a rotation matrix and a translation amount for point cloud matching. An airborne laser detection and measurement system is integrated with a towing measurement system, and thus underwater topography and overwater topography data of an intertidal zone can be obtained, thereby solving the problem of intertidal zone topography measurement. The two systems can perfectly cover a measurement blind area, so as to achieve integrated and seamless intertidal zone measurement.