fast library for approximate nearest neighbors
FLANN is a library for performing fast approximate nearest neighbor searches in high dimensional spaces. It contains a collection of algorithms we found to work best for nearest neighbor search and a system for automatically choosing the best algorithm and optimum parameters depending on the dataset.
Homepage: https://www.cs.ubc.ca/research/flann/
Maintainer: Johannes Thyssen Tishman <jtt@openbsd.org>