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:
Jan. 25, 2011
Filed:
May. 24, 2004
Julien Ros, Grenoble, FR;
Christophe Laurent, Vignoc, FR;
Julien Ros, Grenoble, FR;
Christophe Laurent, Vignoc, FR;
France Telecom, Paris, FR;
Abstract
A method of characterizing a digital image, in which a point of interest (PI) in the detected in the image. For each θ of a plurality I of different prescribed orientations in the digital image a family {f(n)}of K one-dimensional lines f(n) of points is extracted from a region (RPI) of the image along K straight lines of orientation (θ), and for each line f(n) and for each sub-sampling level s, a foveal energy signal E(n) is calculated using foveal wavelets. The signals E(n)) on the K lines and their arguments n are used to calculate a foveal signature SI characterizing the working region.