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Calculating Zernike coefficients from Fourier coefficients

  • US 7,331,674 B2
  • Filed: 09/02/2005
  • Issued: 02/19/2008
  • Est. Priority Date: 09/02/2005
  • Status: Active Grant
First Claim
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1. A method of determining an optical surface model for an optical tissue system of an eye, the method comprising:

  • inputting a Fourier transform of optical data from the optical tissue system;

    inputting a conjugate Fourier transform of a basis function surface;

    determining a Fourier domain sum of the Fourier transform and the conjugate Fourier transform;

    calculating an estimated basis function coefficient based on the Fourier domain sum; and

    determining the optical surface model based on the estimated basis function coefficient.

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