The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2016
Filed:
Jul. 06, 2010
Ayoub Massoudi, Angers, FR;
Simon Dolle, Issy les Moulineaux, FR;
Alexandre Winter, Brooklyn, NY (US);
Frederic Jahard, Vincennes, FR;
Pierre Moulon, Antony, FR;
Christian Wengert, Zurich, CH;
Ayoub Massoudi, Angers, FR;
Simon Dolle, Issy les Moulineaux, FR;
Alexandre Winter, Brooklyn, NY (US);
Frederic Jahard, Vincennes, FR;
Pierre Moulon, Antony, FR;
Christian Wengert, Zurich, CH;
JASTEC CO., Tokyo, JP;
Abstract
The present invention concerns a method for deriving from an arbitrary local image descriptor a descriptor that is invariant under arbitrary mirror symmetries. For a point of interest, pi, for which the descriptor is to be determined a direction, ODi is determined. The local patch from which the descriptor is to be extracted is mirrored along ODi if a 'smaller than' relation does not hold a feature extracted from the left half of the local image patch, in regard of ODi, compared to the right half of the local image patch. Thereby, the local patch is brought into a normalized intrinsic orientation. Thereafter, the descriptor is extracted. Examples include a mirror symmetry invariant version of Lowe's SIFT.