SYSTEM AND METHOD FOR FILTERING A POINT CLOUD

摘要

An exemplary method for filtering a point cloud is disclosed. The method includes the steps of: acquiring a point cloud from a point cloud obtaining device; identifying an outmost point on each of surface edges of the point cloud in a coordinate system; determining a cubical figure that confines the point cloud and intersects at surface points of the point cloud; deriving the length, the width and the height of the cubical figure; mapping a grid on the cubical figure of the point cloud and obtaining a plurality of grid squares; and processing points in each of the grid squares to retain a selected point having a smallest distance from a center of the grid square and delete redundant points in the grid square, thereby yielding a filtered point cloud. A related system is also disclosed.