SAVI: Synthetic apertures for long-range, subdiffraction-limited visible imaging using Fourier ptychography

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dc.citation.articleNumbere1602564en_US
dc.citation.issueNumber4en_US
dc.citation.journalTitleScience Advancesen_US
dc.citation.volumeNumber3en_US
dc.contributor.authorHolloway, Jasonen_US
dc.contributor.authorWu, Yichengen_US
dc.contributor.authorSharma, Manoj K.en_US
dc.contributor.authorCossairt, Oliveren_US
dc.contributor.authorVeeraraghavan, Ashoken_US
dc.date.accessioned2017-07-25T18:04:14Zen_US
dc.date.available2017-07-25T18:04:14Zen_US
dc.date.issued2017en_US
dc.description.abstractSynthetic aperture radar is a well-known technique for improving resolution in radio imaging. Extending these synthetic aperture techniques to the visible light domain is not straightforward because optical receivers cannot measure phase information. We propose to use macroscopic Fourier ptychography (FP) as a practical means of creating a synthetic aperture for visible imaging to achieve subdiffraction-limited resolution. We demonstrate the first working prototype for macroscopic FP in a reflection imaging geometry that is capable of imaging optically rough objects. In addition, a novel image space denoising regularization is introduced during phase retrieval to reduce the effects of speckle and improve perceptual quality of the recovered high-resolution image. Our approach is validated experimentally where the resolution of various diffuse objects is improved sixfold.en_US
dc.identifier.citationHolloway, Jason, Wu, Yicheng, Sharma, Manoj K., et al.. "SAVI: Synthetic apertures for long-range, subdiffraction-limited visible imaging using Fourier ptychography." <i>Science Advances,</i> 3, no. 4 (2017) AAAS: https://doi.org/10.1126/sciadv.1602564.en_US
dc.identifier.digitalSAVI_Synthetic_aperturesen_US
dc.identifier.doihttps://doi.org/10.1126/sciadv.1602564en_US
dc.identifier.urihttps://hdl.handle.net/1911/95225en_US
dc.language.isoengen_US
dc.publisherAAASen_US
dc.rightsDistributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/en_US
dc.subject.keywordComputational Imagingen_US
dc.subject.keywordFourier Ptychographyen_US
dc.subject.keywordPhase Retrievalen_US
dc.subject.keywordSynthetic Aperture Imagingen_US
dc.titleSAVI: Synthetic apertures for long-range, subdiffraction-limited visible imaging using Fourier ptychographyen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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