METHOD FOR PROCESSING AN IMAGE OF A PAPILLARY IMPRESSION

A method of processing a papillary print includes a step to detect a singular zone on the image, the singular zone being characterised by a position, and an orientation representative of a value of the gradient of the intensity of the image; a step to extract control patches, each control patch havi...

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Bibliographic Details
Main Authors PERRIER, Regis, BOURJOT, Mathilde
Format Patent
LanguageEnglish
Published 12.12.2019
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:A method of processing a papillary print includes a step to detect a singular zone on the image, the singular zone being characterised by a position, and an orientation representative of a value of the gradient of the intensity of the image; a step to extract control patches, each control patch having one of the singular zones detected in step a); a step to project control patches in a reference base, so as to determine the projection coordinates of each control patch on the reference base, projection of a control patch on the reference base forming a projected patch; and a step to calculate a difference in projection of control patches relative to the projected patches.
Bibliography:Application Number: US201916429875