18 August 2005 Human eye's wavefront reconstruction with modified iterative discrete Fourier transform using Hartmann-Shack sensor
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Abstract
A novel wavefront reconstruction algorithm used in the visual science for the wavefront aberration of the human eye with use of the Hartmann-Shack (H-S) sensor is proposed in this paper. We model the gradients of H-S sensor with the Fried geometry. Iterative discrete Fourier transform and the correspondent inverse filter in spatial frequency domain are introduced. The processing of the boundary condition in our algorithm becomes easy and natural, and it is with no necessary to derive the boundary gradients from the measured data. The simulations and experimental results show that the new iterative algorithm can accurately offer the estimated wavefront and gradient data, especially in high precision measurement where the signal-to-noise ratio is high.
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Zhao-Qi Wang, Zhao-Qi Wang, Huan-Qing Guo, Huan-Qing Guo, } "Human eye's wavefront reconstruction with modified iterative discrete Fourier transform using Hartmann-Shack sensor", Proc. SPIE 5894, Advanced Wavefront Control: Methods, Devices, and Applications III, 58941D (18 August 2005); doi: 10.1117/12.612822; https://doi.org/10.1117/12.612822
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