System for creating a high resolution image from a sequence of lower resolution motion images
First Claim
1. A method for creating a high resolution image from a sequence of lower resolution motion images, comprising the steps of:
- a. producing a mapping transformation for each lower resolution image to map pixels in each lower resolution image into locations in the high resolution image;
b. computing a combined point spread function (combined PSF) for each pixel in each lower resolution image employing the mapping transformations, by;
i. calculating an effective sensor aperture relative to the high resolution image for each pixel in each lower resolution image employing the mapping transformations;
ii. calculating PSF'"'"'s for the effective sensor apertures;
iii. defining an optical PSF; and
iv. combining the calculated PSF for each pixel with the optical PSF to produce the combined PSF for each pixel;
c. generating the high resolution image from the lower resolution images employing the combined PSF by projection onto convex sets (POCS); and
d. displaying the high resolution image.
4 Assignments
0 Petitions
Accused Products
Abstract
A robust system, adaptive to motion estimation accuracy, for creating a high resolution image from a sequence of lower resolution motion images produces a mapping transformation for each low resolution image to map pixels in each low resolution image into locations in the high resolution image. A combined point spread function (PSF) is computed for each pixel in each lower resolution image employing the mapping transformations provided that they describe accurate motion vectors. The high resolution image is generated from the lower resolution images employing the combined PSF'"'"'s by projection onto convex sets (POCS), where sets and associated projections are defined only for those pixels whose motion vector estimates are accurate.
-
Citations
8 Claims
-
1. A method for creating a high resolution image from a sequence of lower resolution motion images, comprising the steps of:
-
a. producing a mapping transformation for each lower resolution image to map pixels in each lower resolution image into locations in the high resolution image; b. computing a combined point spread function (combined PSF) for each pixel in each lower resolution image employing the mapping transformations, by; i. calculating an effective sensor aperture relative to the high resolution image for each pixel in each lower resolution image employing the mapping transformations; ii. calculating PSF'"'"'s for the effective sensor apertures; iii. defining an optical PSF; and iv. combining the calculated PSF for each pixel with the optical PSF to produce the combined PSF for each pixel; c. generating the high resolution image from the lower resolution images employing the combined PSF by projection onto convex sets (POCS); and d. displaying the high resolution image. - View Dependent Claims (2, 3, 4, 6, 7)
-
-
5. Apparatus for creating a high resolution image from a sequence of lower resolution motion images, comprising:
-
a. a source for producing a sequence of lower resolution motion images; b. an image processor for receiving the sequence of lower resolution images and creating the high resolution image, including; i. means for producing a mapping transformation for each low resolution image to map pixels in each low resolution image into locations in the high resolution image; ii. means for computing a combined point spread function (combined PSF) for each pixel in each lower resolution image employing the mapping transformations, the means for computing a combined point spread function including means for calculating an effective sensor aperture relative to the high resolution image for each pixel in each lower resolution image employing the mapping transformations, means for calculating PSF'"'"'s for the effective sensor apertures, means for defining an optical PSF, and means for combining the calculated PSF for each pixel with the optical PSF to produce the combined PSF for each pixel; iii. means for generating the high resolution image from the lower resolution images employing the combined PSF by projection onto convex sets (POCS); and c. a display device for displaying the high resolution image.
-
-
8. A computer program product, comprising a computer readable storage medium having a computer program stored thereon for creating a high resolution image from a sequence of lower resolution motion images, by the steps of:
-
a. producing a mapping transformation for each lower resolution image to map pixels in each lower resolution image into locations in the high resolution image; b. computing a combined point spread function (combined PSF) for each pixel in each lower resolution image employing the mapping transformations, by i. calculating an effective sensor aperture relative to the high resolution image for each pixel in each lower resolution image employing the mapping transformations; ii. calculating PSF'"'"'s for the effective sensor apertures; iii. defining an optical PSF; and iv. combining the calculated PSF for each pixel with the optical PSF to produce the combined PSF for each pixel; c. generating the high resolution image from the lower resolution images employing the combined PSF by projection onto convex sets (POCS); and d. displaying the high resolution image.
-
Specification