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Computational super-resolution phase retrieval from multiple phase-coded diffraction patterns: Simulation study and experiments

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)786-794
Number of pages9
Issue number7
Publication statusPublished - 20 Jul 2017
Publication typeA1 Journal article-refereed


In this paper, we consider computational super-resolution inverse diffraction phase retrieval. The optical setup is lensless, with a spatial light modulator for aperture phase coding. The paper is focused on experimental tests of the super-resolution sparse phase amplitude retrieval algorithm. We start from simulations and proceed to physical experiments. Both simulation tests and experiments demonstrate good-quality imaging for super-resolution with a factor of 4 and a serious advantage over diffraction-limited resolution as defined by Abbe’s criterion.


  • Discrete optical signal processing, Image processing, Noise in imaging systems, Phase retrieval, Superresolution

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Field of science, Statistics Finland