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Apparatus and methods for image and signal processing

  • US 20020150302A1
  • Filed: 03/18/2002
  • Published: 10/17/2002
  • Est. Priority Date: 07/31/1997
  • Status: Active Grant
First Claim
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1. A method of processing a set of input data X(v) representing a desired signal component plus an undesired contamination component, the method comprising the following steps:

  • obtaining an ensemble-averaged power spectrum of the signal component, <

    |KS(v)|2>

    ;

    obtaining an ensemble-averaged power spectrum of the contamination component, <

    |KN(v)|2>

    ;

    forming a term B2=<

    |KN(v)|2>

    /<

    |KS(v)|2>

    ;

    forming a filter function W(v), where |W(v)|=[1+b2B(v)2]

    1
    , and b is greater than zero;

    forming a term U(v), where |U(v)|=[W(v)(1−

    W(v))]½

    ; and

    processing X(v) to form a result U(v) X(v).

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