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- W4312125995 abstract "Fourier ptychographic microscopy is a computational imaging technique that provides quantitative phase information and high resolution over a large field-of-view. Although the technique presents numerous advantages over conventional microscopy, model mismatch due to unknown optical aberrations can significantly limit reconstruction quality. A practical way of correcting for aberrations without additional data capture is through algorithmic self-calibration, in which a pupil recovery step is embedded into the reconstruction algorithm. However, software-only aberration correction is limited in accuracy. Here, we evaluate the merits of implementing a simple, dedicated calibration procedure for applications requiring high accuracy. In simulations, we find that for a target sample reconstruction error, we can image without any aberration corrections only up to a maximum aberration magnitude of λ /40. When we use algorithmic self-calibration, we can tolerate an aberration magnitude up to λ /10 and with our proposed diffuser calibration technique, this working range is extended further to λ /3. Hence, one can trade off complexity for accuracy by using a separate calibration process, which is particularly useful for larger aberrations." @default.
- W4312125995 created "2023-01-04" @default.
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- W4312125995 date "2023-01-03" @default.
- W4312125995 modified "2023-10-14" @default.
- W4312125995 title "Exceeding the limits of algorithmic self-calibrated aberration recovery in Fourier ptychography" @default.
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- W4312125995 doi "https://doi.org/10.1364/optcon.475990" @default.
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