Anatomy of the SIFT Method
Ives Rey Otero, Mauricio Delbracio
⚠ This is a preprint. It may change before it is accepted for publication.


This article presents a detailed description and implementation of the Scale Invariant Feature Transform, a popular image matching algorithm. This work contributes to a detailed dissection of SIFT complex chain of transformations and to a careful presentation of each of its design parameters. A companion online demonstration allows the reader to use SIFT and set individually each of its design parameter to analyze its impact on the algorithm invariance properties.