A method and apparatus for verifying a hologram and a credit card

A method for verifying a hologram (3), comprising the steps of reading at least two images of the hologram (3), the image being representative of images derived at respective different viewing angles, comparing a characteristic derived from the respective images with a reference characteristic to es...

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Bibliographische Detailangaben
Hauptverfasser:	PATRICK JOSEPH SMITH, CARLOS LUNA, PHELIM ANTHONY O'DOHERTY, MCCARTHY SEAN DAVID
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CHECKING-DEVICES CINEMATOGRAPHY COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING HANDLING RECORD CARRIERS HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY PHOTOGRAPHY PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A method for verifying a hologram (3), comprising the steps of reading at least two images of the hologram (3), the image being representative of images derived at respective different viewing angles, comparing a characteristic derived from the respective images with a reference characteristic to establish if the hologram is authentic, and outputting a signal indicative of the authenticity or otherwise of the hologram (3).