A vehicle-borne urban 3-D acquisition system using single-row laser range scanners

被引:43
作者
Zhao, HJ [1 ]
Shibasaki, R [1 ]
机构
[1] Univ Tokyo, Ctr Spatial Informat Sci, Tokyo 1538505, Japan
来源
IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS | 2003年 / 33卷 / 04期
关键词
single-row laser range scanner; 3-D acquisition system; urban outdoor; vehicle-borne;
D O I
10.1109/TSMCB.2003.814280
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this research, a novel vehicle-borne system of measuring three-dimensional (3-D) urban data using single-row laser range scanners is proposed. Two single-row 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 a vertical range profile of the surroundings are 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 make up 3-D data. An experiment is conducted where 3-D data of a real urban scene is obtained 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 testing site. Accuracy and efficiency of the method in measuring 3-D urban scene is demonstrated.
引用
收藏
页码:658 / 666
页数:9
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