the ICP algorithm. CloudCompare an open source point and model processing tool that includes an implementation of the ICP algorithm. Released under the GNU General Public License. PCL (Point Cloud Library) is an open-source framework for n-dimensional point clouds and 3D geometry processing. It includes several variants of the ICP algorithm. Open source C++ implementations of the ICP algorithm are available in VTK, ITK and Open3D libraries. libpointmatcher is an implementation of point-to-point and point-to-plane ICP released under a BSD license. simpleICP is an implementation of a rather simple version of the ICP algorithm in various languages. See also Point set registration References Geometry in computer vision Robot navigation