France Telecom

Julien Ros

Christophe Laurent

A method of characterizing a digital image, in which a point of interest (PI) in the detected in the image. For each &#x3b8; 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 (&#x3b8;), 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.

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Grenoble, France

Julien Ros