DBoW2: bag-of-words library for C++ with generic descriptors

Copyright (c) 2015 Dorian Galvez-Lopez <http://doriangalvez.com> (Universidad de Zaragoza)
All rights reserved.

Redistribution and use in source and binary forms, with or without
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1. Redistributions of source code must retain the above copyright
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2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
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3. Neither the name of copyright holders nor the names of its
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If you use it in an academic work, please cite:

  @ARTICLE{GalvezTRO12,
    author={G\'alvez-L\'opez, Dorian and Tard\'os, J. D.}, 
    journal={IEEE Transactions on Robotics},
    title={Bags of Binary Words for Fast Place Recognition in Image Sequences},
    year={2012},
    month={October},
    volume={28},
    number={5},
    pages={1188--1197},
    doi={10.1109/TRO.2012.2197158},
    ISSN={1552-3098}
  }

