US 2010/0246952 A1 · METHOD AND SYSTEM FOR IMAGE RESTORATION IN THE SPATIAL DOMAIN

Abstract

Method and system embodiments of the present invention are directed to restoration of corrupted images using spatial-domain image-processing methods that can effectively employ spatial-domain information both in order to avoid various types of artifacts and distortions produced by frequency-domain image-processing operations and to achieve computational efficiency. The various method and system embodiments of the present invention employ a family of penalty functions to constrain iterative restoration images corrupted by both deterministic corruptions, such as motion-induced blur and blurring due to optical misalignment, incorrect positioning of optical components, and defective optical components as well as essentially non-deterministic noise corruption introduced at various stages of image acquisition, image encoding, image storage, and image transmission.

Claims20

Dependent claims

A method for restoring a blurred and noise-corrupted image, the method comprising:

receiving the blurred and corrupted image B and a spatial-domain blur-operator matrix H that describes deterministic corruption in the blurred and corrupted image;
extending the blur-operator matrix H to produce a degradation matrix Ĥ by adding rows that specify particular restored-image values obtained from smooth regions of the blurred and corrupted image B;
iteratively deblurring and denoising the blurred and corrupted image B to produce a restored-image pair R and {tilde over (R)};
and
storing the restored-image pair R and {tilde over (R)} in a computer-readable memory for subsequent output to a user or for transmission to a restored-image-pair receiving device.

2 more elements

A system that restores a blurred and noise-corrupted image, the system comprising:

an electronic memory and mass-storage memory;
a processor that accesses the electronic memory and mass-storage memory;
and
one or more executable routines that execute on the processor to restore the blurred and noise-corrupted image by
receiving the blurred and corrupted image B and a spatial-domain blur-operator matrix H that describes deterministic corruption in the blurred and corrupted image;
extending the blur-operator matrix H to produce a degradation matrix Ĥ by adding rows that specify particular restored-image values obtained from smooth regions of the blurred and corrupted image B;
iteratively deblurring and denoising the blurred and corrupted image B to produce a restored-image pair R and {tilde over (R)};
and
storing the restored-image pair R and {tilde over (R)} in a computer-readable memory for subsequent output to a user or for transmission to a restored-image-pair receiving device.

6 more elements

Dependencies are inferred from the claim text.

Method and system for image restoration in the spatial domain

Life of this patent

Method and system for image restoration in the spatial domain

Life of this patent

Abstract

Claims20