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Blind restoration of images degraded by isotropic blur

  • US 8,249,357 B2
  • Filed: 10/22/2007
  • Issued: 08/21/2012
  • Est. Priority Date: 10/23/2006
  • Status: Active Grant
First Claim
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1. A system for automatic restoration of isotropic degradations of a digital image, the system comprising:

  • (a) an image capture assembly; and

    (b) a processor, which is coupled to process automatically said digital image so as to derive a restoration of said digital image;

    wherein said processor includes;

    (i) a memory, wherein said memory includes software instructions, wherein said software instructions executing a preprogrammed logic algorithm including the stages of;

    A. receiving a blurred image comprising a plurality of pixels;

    B. finding automatically a proper step edge by decomposing said pixels into a plurality of pixel chains, weighting said pixel chains according to straightness and homogeneity, and selecting a pixel chain as said step edge according to said weighting;

    C. calculating a PSF from the step edge; and

    D. restoring said blurred image.

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