EP 2394250 A1 20111214 - METHOD AND DEVICE FOR VERIFYING DOCUMENT USING A WAVELET TRANSFORMATION
Title (en)
METHOD AND DEVICE FOR VERIFYING DOCUMENT USING A WAVELET TRANSFORMATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUM VERIFIZIEREN VON DOKUMENTEN UNTER VERWENDUNG EINER WAVELET-TRANSFORMATION
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR VÉRIFIER DES DOCUMENTS PAR UTILISATION D'UNE TRANSFORMATION EN ONDELETTES
Publication
Application
Priority
- EP 2010000956 W 20100203
- DE 102009007588 A 20090205
Abstract (en)
[origin: WO2010089157A1] The invention relates to a verification method and to a verification device. The method comprises the steps of: detecting at least one image (3) of the document (46; 61); deriving features from the image (3); comparing features to expert knowledge; verifying the document (46; 61) using a result of the comparison, wherein the image (3) is subjected to a wavelet transformation, and the features are derived from individual wavelet pixels or wavelet pixel areas. A device for verifying comprises a detecting device for detecting an image (3) of the document (46; 61), a transforming unit for performing a wavelet transformation, and an analysis and verification device for deriving features and performing a verification using the derived features.
IPC 8 full level
G07D 7/20 (2006.01)
CPC (source: EP US)
G07D 7/202 (2017.04 - EP US)
Citation (search report)
See references of WO 2010089157A1
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010089157 A1 20100812; DE 102009007588 A1 20100819; EP 2394250 A1 20111214; EP 2394250 B1 20190508
DOCDB simple family (application)
EP 2010000956 W 20100203; DE 102009007588 A 20090205; EP 10705107 A 20100203