Arjo Solutions

Fanny Cugnet

Hubert Glasson

Hervé Guiot Du Doignon

Herve Guiot Du Doignon

A method of generating at least one digital signature for at least one surface of a material element, referred to as an 'examined surface.' The method is performed by a data processor system, and may include, for each examined surface: obtaining an 'offset' image having at least a portion showing the examined surface; obtaining at least one zone of interest in the offset image by putting into correspondence the offset image with at least one predetermined &#x201c;equivalent&#x201d; zone that is included in a model image having at least a portion representing a &#x201c;reference&#x201d; surface; obtaining a &#x201c;registered&#x201d; image by registering the offset image with the model image by applying a homography transformation to the offset image, wherein the transformation is obtained from the at least one zone of interest and the at least one equivalent zone; and generating the digital signature, which characterizes the structure of the examined surface, from the registered image.

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Chambery, France

Fanny Cugnet