Image registration method
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United States of America Patent
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Jul 24, 2001
Grant Date -
N/A
app pub date -
Mar 18, 1999
filing date -
Mar 18, 1999
priority date (Note) -
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Abstract
A method for registering a pattern image with a reference image is provided. The pattern image and the reference image differ from each other by a Rotation-Scale-Translation (RST) transformation defined by a scale factor s, a rotation factor .phi., and a translation vector (.DELTA.x, .DELTA.y). A Fourier-Mellin invariant is used to perform image registration by isolating the rotation, scale and transformation parameters of the RST transformation between the reference image r and the pattern image p.
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