Masquerading detection system, masquerading detection method, and computer-readable storage medium
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United States of America Patent
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Oct 14, 2014
Grant Date -
Oct 20, 2011
app pub date -
Oct 28, 2009
filing date -
Oct 28, 2008
priority date (Note) -
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Abstract
A masquerading detection system includes: an imaging unit (2) that obtains a first image by imaging an inspection object (12) from a first angle, and a second image by imaging the inspection object from a second angle which is different from the first angle; a unit (101) that detects first feature points from the first image, obtains first feature point coordinates of the detected feature points, detects second feature points from the second image, and obtains second feature point coordinates of the detected feature points; a unit (104) that obtains transformed coordinates by performing a plane projective transformation for the second feature point coordinates from the second image to the first image; and a unit (105) that determines that masquerading has been attempted when the difference between the transformed coordinates and the corresponding first feature point coordinates is equal to or smaller than a predetermined value.
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