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:
Sep. 16, 2014

Filed:

Dec. 17, 2010
Applicants:

Antoine Chouly, Paris, FR;

Sandrine Merigeault Rhein, Bordeaux, FR;

Inventors:

Antoine Chouly, Paris, FR;

Sandrine Merigeault Rhein, Bordeaux, FR;

Assignees:

ST-Ericsson SA, Plan-les-Ouates, CH;

ST-Ericsson (France) SAS, Grenoble, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/46 (2006.01); G06T 7/00 (2006.01); G06K 9/52 (2006.01);
U.S. Cl.
CPC ...
G06K 9/46 (2013.01); G06K 9/4633 (2013.01); G06T 7/0061 (2013.01); G06T 7/004 (2013.01); G06T 2207/20061 (2013.01); G06T 7/0018 (2013.01); G06K 9/52 (2013.01);
Abstract

The invention particularly relates to a method for identifying an image acquisition feature of a digital image oriented in a coordinate system having a reference axis. According to the invention, this method comprises the steps of: (A) detecting the contours of each distinctive element of the image; -(B) forming a list including each contour constituted by a rectilinear segment; (C) searching, in the list of rectilinear contours, a pair of significant rectilinear segments; (D) in the case where step (C) is successful, checking for a condition of relative symmetry of the significant rectilinear segments with respect to the reference axis; and (E) producing, respectively in the case where step (D) is successful and in the case where one of steps (C) and (D) fails, a data respectively representative of the presence and absence of perspective in the image acquisition, with respect to the reference axis.


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