Automated Reconstruction of Urban Three Dimensional Model by Vehicle-borne Sensors

Abstract

A new mobile mapping system which efficiently constructs an urban three dimensional model was developed. In this technology, the Hybrid Inertial Surveying System (HISS), which combines an inertial navigation system (INS), a GPS receiver and an odometer, acquires position and attitude data. The laser scanner profiles cross-sectional shape as distance data. In addition, the line sensor camera captures image data. While the vehicle runs, these data are acquired simultaneously. By the geometric image processing based on time information of each data, the automatic construction of the three dimensional model with the texture has been realized on a personal computer. A series of field tests have been carried out experimentally in an urban area. It has been verified that the cost and time to construct the urban three dimensional model were drastically reduced in comparison with the conventional method.