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Optimal denoising for video coding

  • US 8,369,417 B2
  • Filed: 05/18/2007
  • Issued: 02/05/2013
  • Est. Priority Date: 05/19/2006
  • Status: Active Grant
First Claim
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1. A method implemented by a video encoder of denoising in video coding, comprising:

  • dividing a current frame into blocks;

    selecting at least one other video frame;

    selecting a current block from said current frame and a reference block corresponding to the current block from said at least one other video frame;

    generating a residue block as a function of a difference between said current block and said reference block; and

    performing a linear combination based at least in part on a mean compensation, wherein a weight of the mean compensation is determined adaptively and at least partially dependent on a variance and a mean of the residue block, and the linear combination is performed on pixels contained in said current block and corresponding pixels contained in said reference block to output denoised values.

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