Using feature detectors and descriptors is only half of the solution. If you rea... | Hacker News

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amelim on April 3, 2014 | parent | context | favorite | on: Detecting duplicate images with Python

Using feature detectors and descriptors is only half of the solution. If you really want robust image recognition you need to use something like the vocabulary tree developed by Nister[1][2].

[1]http://www.wisdom.weizmann.ac.il/~bagon/CVspring07/files/sca... [2]http://www.cc.gatech.edu/~phlosoft/files/schindler07cvpr2.pd...

steeve on April 3, 2014 [–]

True, however, OpenCV implements a bag of visual words, too [1]

[1] http://docs.opencv.org/modules/features2d/doc/object_categor...

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