This is a modified version of the original Fast Bag of Words by @rmsalinas.
FBoW (Fast Bag of Words) is an extremely optimized version of the DBoW2/DBoW3 libraries.
The library is highly optimized to speed up the Bag of Words creation using AVX,SSE and MMX instructions.
In loading a vocabulary, FBoW is about 80x faster than DBoW2.
In transforming an image into Bag of Words using on machines with AVX instructions, it is about 6.4x faster.
$ git clone https://github.com/stella-cv/FBoW.git
$ cd FBoW && mkdir build && cd build
$ cmake .. -DBUILD_TESTS=ON -DBUILD_UTILS=ON
$ makeThis software is distributed under MIT License.
See the LICENSE.