EP 2625673 A2 20130814 - METHOD FOR CHECKING AN OPTICAL SECURITY FEATURE OF A VALUABLE DOCUMENT
Title (en)
METHOD FOR CHECKING AN OPTICAL SECURITY FEATURE OF A VALUABLE DOCUMENT
Title (de)
VERFAHREN ZUM PRÜFEN EINES OPTISCHEN SICHERHEITSMERKMALS EINES WERTDOKUMENTS
Title (fr)
PROCÉDÉ POUR CONTRÔLER UN SIGNE DE SÉCURITÉ OPTIQUE D'UN DOCUMENT DE VALEUR
Publication
Application
Priority
- DE 102010047948 A 20101008
- EP 2011005025 W 20111007
Abstract (en)
[origin: WO2012045472A2] Described is a method for checking a specified optical security feature in or on a specified section of a valuable document on the basis of pixel data of pixels of an image of the specified section, which are assigned in each case to locations in or on the section, and represent optical properties of the valuable document at the locations, in which method a check is carried out as to whether a first number of those pixels or a first proportion of those pixels of the pixels of the image whose pixel data are within a first reference region specified for the security feature according to a first specified criterion exceeds a first hit minimum value specified for the security feature, and whether a first scattering of the pixel data of those pixels which are within the first reference region for the pixel data according to the first criterion exceeds a first scatter minimum value specified for the security feature, and, in dependence on the result of the check, an authenticity signal is formed which represents an authenticity indication only if the first number or the first proportion exceeds the first hit minimum value and the scattering exceeds the first scatter minimum value.
IPC 8 full level
CPC (source: EP US)
G07D 7/1205 (2017.04 - EP US); G07D 7/2041 (2013.01 - EP US); G07D 7/205 (2013.01 - EP US)
Citation (search report)
See references of WO 2012045472A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010047948 A1 20120412; CN 103155008 A 20130612; CN 103155008 B 20160928; EP 2625673 A2 20130814; EP 2625673 B1 20201209; RU 2013120913 A 20141120; RU 2598296 C2 20160920; US 2013170747 A1 20130704; US 9147108 B2 20150929; WO 2012045472 A2 20120412; WO 2012045472 A3 20120705
DOCDB simple family (application)
DE 102010047948 A 20101008; CN 201180048650 A 20111007; EP 11769788 A 20111007; EP 2011005025 W 20111007; RU 2013120913 A 20111007; US 201113822344 A 20111007