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Method and apparatus for a morphology-preserving smoothing filter

  • US 6,641,541 B1
  • Filed: 07/27/2000
  • Issued: 11/04/2003
  • Est. Priority Date: 07/27/2000
  • Status: Expired due to Term
First Claim
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1. A method for filtering an input signal, comprising:

  • generating an output signal representative of a filtered version of the input signal by adaptively removing noise components from the input signal, wherein each of the input signal and the output signal includes discrete samples; and

    determining a desired filtering level from a number of filtering levels for each of the discrete samples of the input signal, wherein determining a desired filtering level includes determining an initial distance metric corresponding to an initial filtering level for each of the discrete samples of the input signal.

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