The  Simple, Thread-safe Approximate Nearest Neighbor (STANN) C++ Library is a library designed to perform nearest neighbor searches on point clouds. The STANN library was designed to be easily included into applications, and to showcase and compare various nearest neighbor algorithms, including dynamic and parallel algorithms.

STANN is available for download here:  STANN_0.5.tar.gz

New users should check out the STANN User Guide


Interested in modifying STANN?  Check out the STANN API (still under construction)

August 5, 2008
New Release(Version 0.5)!  Some major changes

• Simplified the interface, removed several versions of the sfcnn algorithm
• Changed the template parameters to allow for non reviver::dpoint point types.
• Fixed numerous bugs slowing down floating point nearest neighbor searches
• Updated documentation and website