Calculating zernike coefficients from fourier coefficients

摘要

Systems, methods, and devices for determining an optical surface model for an opticaltissue system of an eye are provided. Techniques include inputting a Fouriertransform of optical data from the optical tissue system, inputting a conjugateFourier transform of a basis function surface, determining a Fourier domainsum of the Fourier transform and the conjugate Fourier transform, calculating anestimated basis function coefficient based on the Fourier domain sum, and determiningthe optical surface model based on the estimated basis function coefficient.The approach is well suited for employing Fourier transform in wavefront reconstructionusing Zernike representation.