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Reconstructing urban 3D model using vehicle-borne laser range scanners

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2 Author(s)
Zho, H. ; Inst. of Ind. Sci., Tokyo Univ., Japan ; Shibasaki, R.

In this research, a novel method of reconstructing 3D urban scene using vehicle-borne laser range scanners is proposed. Two one-dimensional laser range scanners are mounted on the roof of a vehicle, doing horizontal and vertical profiling respectively. As the vehicle moves ahead, a horizontal and vertical range profile of the surroundings is captured at each odometer trigger. The freedom of vehicle motion is reduced from six to three by assuming that the ground surface is flat and smooth so resulting in the vehicle moving on almost the same horizontal plane. Horizontal range profiles, which have an overwhelming overlay between successive ones, are registered to trace vehicle location and attitude. Vertical range profiles are aligned to the coordinate system of the horizontal one according to the physical geometry between the pair of laser range scanners, and subsequently to a global coordinate system to generate a 3D model. An experiment is conducted where a 3D model is reconstructed by registering and integrating 2412 horizontal and vertical range profiles. Two ground truths are used in examination. They are the outputs of a GPS/INS/Odometer based positioning system and a 1:500 digital map of the test site. Accuracy and efficiency of the method in reconstructing 3D urban scene is demonstrated

Published in:

3-D Digital Imaging and Modeling, 2001. Proceedings. Third International Conference on

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