Method and apparatus for verifying a hologram and a credit card
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United States of America Patent
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Mar 2, 2010
Issued Date -
N/A
app pub date -
Oct 19, 2004
filing date -
Dec 11, 2003
priority date (Note) -
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Abstract
A method for verifying a hologram, comprising the steps of reading at least two images of the hologram, the images 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.
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