Phase retrieval with Fourier-weighted projections |
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Authors: | Guizar-Sicairos Manuel Fienup James R |
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Affiliation: | Department of Physics, University of Arkansas, Arkansas 72701, USA. |
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Abstract: | In coherent lensless imaging, the presence of image sidelobes, which arise as a natural consequence of the finite nature of the detector array, was early recognized as a convergence issue for phase retrieval algorithms that rely on an object support constraint. To mitigate the problem of truncated far-field measurement, a controlled analytic continuation by means of an iterative transform algorithm with weighted projections is proposed and tested. This approach avoids the use of sidelobe reduction windows and achieves full-resolution reconstructions. |
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