Patent ID: 7925110

Claim:
A system for filtering a point cloud, the system comprising an application server connected to a point cloud obtaining device, the application server comprising: a point cloud acquiring module configured for acquiring a point cloud of an object from the point cloud obtaining device; a topological structure establishing module configured for establishing a topological structure for the point cloud to make points of the point cloud confined in a plurality of related cubical grids; a point selecting module configured for selecting a maiden point from the point cloud as a selected point; a near points searching module configured for searching a plurality of points which are near to the selected point from the point cloud according to the topological structure as near points of the selected point; a noise point determining module configured for determining whether the selected point is a noise point by comparing coordinate values of the selected point with coordinate values of the near points; and a noise point filtering module configured for deleting or smoothing the noise point from the point cloud.