High Precision Localization of Mobile Robot Using LIDAR Intensity of Surface

Abstract

This paper presents the technique for improving the accuracy and reliability of an autonomous mobile robot localization. Localization based on 2D LIDAR is not always satisfactory due to occlusion. Use of 3D LIDAR improves the reliability by greater field of view. However, lack of 3D objects around the robot may result in poor matching between the observation and the 3D map. Even in this case, the different brightness of the ground surface helps localization. In this paper, we propose an efficient expression of 3D map by considering of LIDAR intensity. Experiment result shows successful localization in a trail through outdoor open grass fields.