Automated image registration with varied amounts of a priori information using a minimum entropy method
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United States of America Patent
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Dec 17, 2013
Grant Date -
Mar 28, 2013
app pub date -
Sep 26, 2011
filing date -
Sep 26, 2011
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Abstract
An image registration method includes: providing a reference image and a source image; using a wavelet transformation to produce a transformed reference image and a transformed source image; using the transformed reference image and the transformed source image to estimate affine transform parameters; using the reference image, the source image, and the affine transform estimates to maximize normalized mutual information between the reference image and the source image; and using the normalized mutual information to perform sub-pixel geo-spatial registration of the reference image and the source image to produce an output image. An apparatus that performs the method is also provided.
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