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Image processing apparatus for performing image restoration

  • US 7,079,179 B2
  • Filed: 03/21/2002
  • Issued: 07/18/2006
  • Est. Priority Date: 03/23/2001
  • Status: Expired due to Fees
First Claim
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1. An image processing apparatus comprising:

  • a image processor for performing an image restoration by utilizing iterative calculations based on a captured image and a degradation function;

    a first calculator for calculating a residual at each time of iteration in the iterative calculations;

    a second calculator for calculating a rate of variation of the residual calculated by the first calculator, said variation is based on difference of the residual between previous and next calculation of said first calculator; and

    a judger for judging that the iterative calculations are converged when the rate of variation calculated by said second calculator becomes equal to or lower than a predetermined threshold value, whereinsaid degradation function is attributable to a specific condition of an image capturing device capturing said captured image, andthe residual is a difference between an image before degradation and an image after degradation by the degraded function.

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