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Recursive conditional means image denoising

  • US 8,908,989 B2
  • Filed: 08/12/2013
  • Issued: 12/09/2014
  • Est. Priority Date: 11/02/2012
  • Status: Expired due to Fees
First Claim
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1. A method of estimating an original value of a pixel in a digital image, said method comprising:

  • (i) identifying noise in a high quality digital image and producing a digital image noise model;

    (ii) adding model noise based on said digital image noise model to a plurality of ground-truth digital images and producing a plurality of training images;

    (iii) recursively measuring and applying conditional means to a plurality of different local pixel contexts based on said training images and producing a look-up table comprising estimates of point (pixel) values;

    (iv) terminating the recursive measuring and applying conditional means to a plurality of different local pixel contexts based on said training images when the convergence of the conditional means indicates an asymptote; and

    (v) assigning a value to a pixel in a digital image using said estimates of point (pixel) values in said look-up table.

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