SYSTEM AND METHOD FOR MONITORING FOREST GAP USING LIDAR SURVEY DATA

摘要

The objective of the present invention is to provide a system and method for detecting a forest gap occurring in a city and monitoring a change in the forest gap. Therefore, the present invention comprises: a data input unit for receiving LiDAR survey data; a pre-processing unit for removing noise from the LiDAR survey data and classifying each point cloud; a modeling unit for generating a canopy height model for the point cloud classified as trees; a forest gap classification unit for classifying a region as a forest gap, if the sum of the areas of regions corresponding to adjacent point clouds, in which the height of a canopy height model is less than or equal to a first height, is more than or equal to a first area and otherwise classifying the same as a closed canopy; and a forest gap change measurement unit for classifying a region as a closed forest gap, if the region classified as the forest gap has been changed to a closed canopy, and classifying the same as a continuous forest gap if the region classified as the forest gap remains as the forest gap.