Scan-Point Planning and 3-D Map Building for a 3-D Laser Range Scanner in an Outdoor Environment
During search missions in disaster environments, an important task for mobile robots is map building. An advantage of three-dimensional (3-D) mapping is that it can provide depictions of disaster environments that will support robotic teleoperations used in locating victims and aid rescue crews in strategizing. However, the 3-D scanning of an environment is timeconsuming because a 3-D scanning procedure itself takes a time and scan data must be matched at several locations. Therefore, in this paper, we propose a scan-point planning algorithm to obtain a large scale 3-D map, and we apply a scan-matching method to improve the accuracy of the map. We discuss the use of scan-point planning to maintain the resolution of sensor data and to minimize occlusion areas. The scan-matching method is based on a combination of the Iterative Closest Point (ICP) algorithm and the Normal Distribution Transform (NDT) algorithm.We performed several experiments to verify the validity of our approach.
KeywordsSearch and Rescue Scan points planning
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- 2.Biber, P., Straber, W.: The normal distributions transform: A new approach to laser scan matching. In: IEEE/RSJ International Conference on Intelligent Robots and Systems, pp. 2743–2748 (2003)Google Scholar
- 3.Ayache, N.: Artificial Vision for Mobile Robots. MIT Press, Cambridge (1991)Google Scholar
- 6.Klein, K., Sequeira, V.: View planning for the 3d modelling of real world scenes. In: Proc. of IEEE/RSJ International Conference on Intelligent Robots and Systems (2000)Google Scholar
- 7.Yamauchi, B.: A frontier-based approach for autonomous exploration. In: IEEE International Symposium on Computational Intelligence in Robotics and Automation, pp. 146–151 (1997)Google Scholar
- 9.Fong, E.H.L., Adams, W., Crabbe, F.L., Schultz, A.C.: Representing a 3-d environment with a 2 1/2-d map structure. In: IEEE/RSJ Conference on Intelligent Robots and Systems, pp. 2986–2991 (2003)Google Scholar
- 10.Triebel, R., Pfaff, P., Burgard, W.: Multi-level surface maps for outdoor terrain mapping and loop closing. In: IEEE/RSJ International Conference on Intelligent Robots and Systems, pp. 2276–2282 (2006)Google Scholar