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.

Date of Patent:
Aug. 13, 2019

Filed:

Feb. 07, 2017
Applicant:

Safran Identity & Security, Issy les Moulineaux, FR;

Inventors:

Laurent Rostaing, Issy les Moulineaux, FR;

Alain Rouh, Issy les Moulineaux, FR;

Jean Beaudet, Issy les Moulineaux, FR;

Assignee:

SAFRAN IDENTITY & SECURITY, Issy les Moulineaux, FR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06K 9/40 (2006.01); G06K 9/46 (2006.01); G06T 7/68 (2017.01); G06T 7/73 (2017.01); G06T 7/90 (2017.01); G06K 9/36 (2006.01);
U.S. Cl.
CPC ...
G06K 9/00449 (2013.01); G06K 9/00463 (2013.01); G06K 9/40 (2013.01); G06K 9/4652 (2013.01); G06T 7/68 (2017.01); G06T 7/75 (2017.01); G06T 7/90 (2017.01); G06K 2009/363 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/30176 (2013.01);
Abstract

A method for determining an apparent color value of pixels corresponding to a subpart of an object in the acquired image, including: estimating a geometric distortion model of the object in the acquired image compared with a reference model of the object; determining a position in the acquired image of the subpart and determining a zone of the acquired image, referred to as the reference zone, situated in a predetermined vicinity of the subpart, each pixel of the reference zone resulting from a projection in the acquired image of a zone of the reference model, referred to as a blank zone, the blank zone being associated with a predetermined color value in the reference model, the projection using the geometric distortion model; and determining an apparent color value of the pixels of the subpart, from a color value of at least one pixel of the reference zone.


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