Patent · US Active

Method for examining a value document, and means for carrying out the method

US10262200B2 · kind B2 · utility

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14Claims

0Family size

Assignee

GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH · DE

Inventors

Steffen Schmalz · Munich, DE
Shanchuan Su · Neubiberg, DE
Norbert Holl · Germering, DE

Key dates

Filing date	Feb 18, 2015
Grant date	Apr 16, 2019
Priority date	—
Expiry date	Feb 18, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30176
WIPO fieldControl
WIPO sectorInstruments

Abstract

There is described a method for examining a value document while employing a digital image of the value document which comprises pixels, wherein the image is examined for the presence of at least one irregularity relating to a pre-specified property of the value document, when such an irregularity is found an examination region representing the irregularity is fixed in dependence on the size and/or position and/or form of the irregularity in the image, and for checking the irregularity only a part of those pixels of the digital image that correspond to the examination region is employed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.