Calculating Zernike coefficients from Fourier coefficients
US7331674B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2005 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Jun 11, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/1015
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems, methods, and devices for determining an optical surface model for an optical tissue system of an eye are provided. Techniques include 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. The approach is well suited for employing Fourier transform in wavefront reconstruction using Zernike representation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.