IJspeert J K, van den Berg T J, Spekreijse H
Laboratory of Medical Physics and Informatics, University of Amsterdam, The Netherlands.
Vision Res. 1993 Jan;33(1):15-20. doi: 10.1016/0042-6989(93)90053-y.
An analytical description of the point spread function (PSF) for human foveal vision, together with its closed form two-dimensional Fourier transform, the modulation transfer function (MTF), is proposed. It also possesses an analytical line spread function (LSF) counterpart. It fits to both PSF and MTF experimental data and holds over the full angular and spatial frequency domain. Variation in the PSF and MTF descriptions with pupil size, age and iris/skin pigmentation are accounted for by analytical expressions in the parameters.
