Multi-Image Deblurring
AssigneeMitsubishi Electric Research Laboratories, Inc.
InventorsAmit Agrawal, Yi Xu, Ramesh Raskar
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Abstract
Embodiments of the invention describe a method for reducing a blur in an image of a scene. First, we acquire a set of images of the scene, wherein each image in the set of images includes an object having a blur associated with a point spread function (PSF) forming a set of point spread functions (PSFs), wherein the set of PSFs is suitable for null-filling operation. Next, we invert jointly the set of images and the set of PSFs to produce an output image having a reduced blur.
Claims20
A method for reducing a blur in an image of a scene, comprising a processor for performing steps of the method, comprising the steps of:
- acquiring a set of images of the scene, wherein each image in the set of images includes an object having a blur associated with a point spread function (PSF) forming a set of point spread functions (PSFs), wherein the set of PSFs is suitable for null-filling operation;
- and
- inverting jointly the set of images and the set of PSFs to produce an output image having a reduced blur.
A method for reducing blur in an image, comprising a processor for performing steps of the method, comprising the steps of:
- acquiring repetitively a set of images of a moving object with a set of exposures, wherein the exposures are non-integer multiples of each other;
- estimating a point spread function (PSF) using motion vectors computed from images acquired with the same exposure forming a set of point spread functions (PSFs);
- determining an alpha map for each image in the set of images;
- removing a background contribution from the images using the alpha map;
- and
- inverting jointly the set of images and the set of PSFs to produce an output image having a reduced blur.
A camera configured for reducing blur in an image, comprising:
- means for acquiring a set of images of a moving object, wherein each image is associated with a point spread function (PSF) forming a set of point spread functions (PSFs), wherein the set of PSFs is suitable for null-filling operation;
- and
- means for inverting jointly the set of images and the set of PSFs to produce an output image having a reduced blur.
Dependencies are inferred from the claim text.