Research on Detection of Time Series Change of Ground Surface Using Laser Scanner

Abstract

Since the laser scanner used for continuous monitoring can acquire point cloud data with a high accuracy, it is expected to be utilized for construction management and grasping slope displacement. However, in order to realize these purposes, it is necessary to find a technique to detect the difference of ground surfaces in different time using point cloud data. As for existing researches, there are approaches for grasping secular changes of structures and visualizing soil volume in construction site. However, there has not any attempt to visualize difference of ground surfaces in every day. Therefore, in this research, we propose a method to detect difference of ground surfaces surveyed in different time.