System and method of super-resolution imaging from a sequence of translated and rotated low-resolution images
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United States of America Patent
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Dec 21, 2010
Grant Date -
Mar 18, 2010
app pub date -
Oct 8, 2009
filing date -
Jan 19, 2005
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Abstract
A method and system for super-resolving images from low-resolution sequences comprising an image processor having an input for inputting multiple images of a scene with sub-pixel translations and rotations; one of the images of the scene being a reference image; and at least one memory comprising a gross translation estimation algorithm for estimating overall translations of at least one image with respect to the reference image on the image processor and aligning the inputted images according to the gross translation estimates on the image processor; a sub-pixel estimation algorithm for obtaining the sub-pixel shift and rotation of each image with respect to the reference image; and an error reduction algorithm for applying at least one spatial frequency domain constraint and at least one spatial domain constraint to the images to produce a high-resolution image.
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