Does anyone know how to determine key points in SIFT after finding candidate points?

25 March 2014 1 4K Report

After calculation of DOG we find extrema at each octave and scale independently, how should we relate the candidate points in octave 3 to the original image as keypoint?

Bin Wang

vlfeat gives a source code for SIFT.

http://www.vlfeat.org/download.html

It may be useful.

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