Comparing SIFT features stored in a mysql database

Question

I\'m currently extending an image library used to categorize images and i want to find duplicate images, transformed images, and images that contain or are contained in other im

Answer 1

I have some tools in python you can play with here . Basically its a package that uses SIFT transformed vectors, and then computes a nearest lattice hashing of each 128d sift vector. The hashing is the important part, as it is locality sensitive, simply meaning that vectors near in R^n space result in equivalent hash collision probabilities. The work I provide is an extension of Andoni that provides a query adaptive heuristic for pruning the LSH exact search lists, as well as an optimized CUDA implementation of the hashing function. I also have a small app that does image database search with nice visual feedback, all under bsd (exception is SIFT which has some additional restrictions).