System and method of super-resolution imaging from a sequence of translated and rotated low-resolution images
First Claim
1. A 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 at least one high-resolution image.
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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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Citations
19 Claims
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1. A system for super-resolving images from low-resolution sequences comprising:
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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; andat 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 at least one high-resolution image. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of super-resolving images affected by movement including translation and rotation comprising:
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inputting frames of low-resolution images of a scene into a processor;
at least one of the frames being affected by movement;estimating the sub-pixel shifts and rotations among the low resolution image frames due to the movement; and applying an error reduction algorithm utilizing at least one spatial frequency domain constraint and at least one spatial domain constraint to produce a high-resolution output. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification