Method and apparatus for non-contact signature imaging

Details Method and apparatus for non-contact signature imaging Method and apparatus for non-contact signature imaging

G - Physics

06

K

G06K 9/78 (2006.01) G06K 9/00 (2006.01)

Patent

CA 2222240

A portable, hand-held apparatus for capturing a gray scale image of a signature within a box having fiducial marks in the corners. Portions of the image outside the box are trimmed away and the box is oriented and scaled to a standard size and shape. Signature storage requirements are minimized and signature recognition is facilitated by thresholding the gray scale image and thinning the strokes of the signature to an image width of one pixel.

Appareil à main portatif permettant de capter une image à échelle de gris à l'intérieur d'un cadre portant des marques de référence dans les angles. Les parties d'image situées à l'extérieur du cadre sont coupées, et le cadre est orienté et dimensionné suivant une dimension et une forme normalisées. On réduit les contraintes de stockage de signatures et on facilite la reconnaissance de signatures par le seuillage de l'image à échelle de gris et l'amincissement des traits de la signature pour obtenir une largeur d'image de un pixel.

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