DESIGN AND APPLICATION OF THE GPSVISION MOBILE MAPPING SYSTEM

摘要

The continuous improvement and application of computer technology is rapidly changing the way the people manage their environments. With the sophisticated software in use, data acquisition is becoming the most expensive part of establishing a road network database. For this challenge, the mobile mapping technology is developed to quickly and accurately collect roadway infrastructures. One of these systems is the GPSVision system which integrates the Global Positioning System (GPS), an Inertia! Navigation System (INS) and digital cameras into a moving platform. The GPSVision system captures the images of road environment at the normal driving speed. The position and orientation of each image are known from the GPS and INS. Based on the photogrammetric triangulation method* the location and attributes of any visible object can be determined from images. Single point features such as signs and signals, line features such as street marking and guard rails, polyline features such as road edges and centerlines as well as area features can be identified, positioned, tagged with attributes and delivered in standard CAD and GIS formats. A typical user can accurately measure and inspect the infrastructures from images, can simulate the view as one drives down the road and can create complete vector map from images. The GPSVision data is also used together with aerial images to create complete vector map with detailed view both from the air and on the ground. This paper will discuss the basic issues of a mobile mapping system. A brief description of the system configuration is given, followed by data processing procedure. Variety mapping projects are presented to demonstrate the application of the mobile mapping technology in transportation and telecommunication market.