LWGNet: Learned Wirtinger Gradients for Fourier Ptychographic Phase Retrieval. (arXiv:2208.04283v2 [cs.CV] UPDATED)

Fourier Ptychographic Microscopy (FPM) is an imaging procedure that overcomes
the traditional limit on Space-Bandwidth Product (SBP) of conventional
microscopes through computational means. It utilizes multiple images captured
using a low numerical aperture (NA) objective and enables high-resolution phase
imaging through frequency domain stitching. Existing FPM reconstruction methods
can be broadly categorized into two approaches: iterative optimization based
methods, which are based on the physics of the forward imaging model, and
data-driven methods which commonly employ a feed-forward deep learning …

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