Anatomy of the SIFT Method
Ives Rey Otero, Mauricio Delbracio
Ives Rey Otero, and Mauricio Delbracio, Anatomy of the SIFT Method, Image Processing On Line, 4 (2014), pp. 370–396.

Communicated by Gabriele Facciolo
Demo edited by Ives Rey Otero


This article presents a detailed description and implementation of the Scale Invariant Feature Transform (SIFT), a popular image matching algorithm. This work contributes to a detailed dissection of SIFT’s 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 individually set each parameter to analyze its impact on the algorithm results.