关键词: 背包式, 移动激光扫描, SLAM, 点云配准, 精度验证

Abstract:

In this paper,we study three current representative Backpack-mounted 3D mobile scanning systems and analyze the key technics used in these devices. Then we verify the precision and efficiency of such devices through the data acquisition test methods. The results show that these devices can achieve the requirements of general surveying and mapping projects such as the standard of large scale topographic surveying and mapping, on which the precision is better than 5 cm in the positional and spacing domain. Nevertheless the elevation precision of these devices doesn't achieve the requirements. In addition,compared with the traditional methods,there are obvious advantages in the operation efficiency. In the future,the integration of multi-sensor and multi-location algorithms is one of the key trends for the application of such devices.

Key words: backpack-mounted, mobile laser scanning, SLAM, point cloud registration, precision verification