Fast and Accurate 3D PSF Computation for Fluorescence Microscopy
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This set of codes is a fast computation of 3D PSF model in fluorescernce microscopy, based on Gibson-Lanni model. 

Reference:
[1] S. F. Gibson and F. Lanni, "Experimental test of an analytical model of aberration in an oil-immersion objective lens used in three-dimensional light microscopy", J. Opt. Soc. Am. A, vol. 9, no. 1, pp. 154-166, 1992.
[2] J. Li, F. Xue and T. Blu, "Fast and Accurate 3D PSF Computation for Fluorescence Microscopy", J. Opt. Soc. Am. A, vol. 34, no. 6, 2017.

Usage of the Proposed Method
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If the parameters of the microscope are not assigned, default setting will be loaded, see MicroscPSF for details. 
The number of basis functions and sampling number are set to be 100 and 1000, respectively.

>> params.size = [256 256 128];
>> tic;
>> PSF = MicroPSF(params);
>> toc

Contact: Jizhou Li (hijizhou@gmail.com), The Chinese University of Hong Kong.