Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network

We present a deep learning-based generative model for the enhancement of partially coherent diffractive images. In lensless coherent diffractive imaging, a highly coherent X-ray illumination is required to image an object at high resolution. Non-ideal experimental conditions result in a partially co...

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Main Authors: Jong Woo Kim, Marc Messerschmidt, William S. Graves
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:AI
Subjects:
Online Access:https://www.mdpi.com/2673-2688/3/2/17
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author Jong Woo Kim
Marc Messerschmidt
William S. Graves
author_facet Jong Woo Kim
Marc Messerschmidt
William S. Graves
author_sort Jong Woo Kim
collection DOAJ
description We present a deep learning-based generative model for the enhancement of partially coherent diffractive images. In lensless coherent diffractive imaging, a highly coherent X-ray illumination is required to image an object at high resolution. Non-ideal experimental conditions result in a partially coherent X-ray illumination, lead to imperfections of coherent diffractive images recorded on a detector, and ultimately limit the capability of lensless coherent diffractive imaging. The previous approaches, relying on the coherence property of illumination, require preliminary experiments or expensive computations. In this article, we propose a generative adversarial network (GAN) model to enhance the visibility of fringes in partially coherent diffractive images. Unlike previous approaches, the model is trained to restore the latent sharp features from blurred input images without finding coherence properties of illumination. We demonstrate that the GAN model performs well with both coherent diffractive imaging and ptychography. It can be applied to a wide range of imaging techniques relying on phase retrieval of coherent diffraction patterns.
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spelling doaj.art-331f3985fd1248a897e4cd989bb0b84d2023-11-23T15:12:33ZengMDPI AGAI2673-26882022-04-013227428410.3390/ai3020017Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial NetworkJong Woo Kim0Marc Messerschmidt1William S. Graves2Biodesign Beus CXFEL Laboratory, Arizona State University, Tempe, AZ 85281, USABiodesign Beus CXFEL Laboratory, Arizona State University, Tempe, AZ 85281, USABiodesign Beus CXFEL Laboratory, Arizona State University, Tempe, AZ 85281, USAWe present a deep learning-based generative model for the enhancement of partially coherent diffractive images. In lensless coherent diffractive imaging, a highly coherent X-ray illumination is required to image an object at high resolution. Non-ideal experimental conditions result in a partially coherent X-ray illumination, lead to imperfections of coherent diffractive images recorded on a detector, and ultimately limit the capability of lensless coherent diffractive imaging. The previous approaches, relying on the coherence property of illumination, require preliminary experiments or expensive computations. In this article, we propose a generative adversarial network (GAN) model to enhance the visibility of fringes in partially coherent diffractive images. Unlike previous approaches, the model is trained to restore the latent sharp features from blurred input images without finding coherence properties of illumination. We demonstrate that the GAN model performs well with both coherent diffractive imaging and ptychography. It can be applied to a wide range of imaging techniques relying on phase retrieval of coherent diffraction patterns.https://www.mdpi.com/2673-2688/3/2/17partial coherencecoherent diffractive imagingGAN (generative adversarial network)phase retrievalptychography
spellingShingle Jong Woo Kim
Marc Messerschmidt
William S. Graves
Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network
AI
partial coherence
coherent diffractive imaging
GAN (generative adversarial network)
phase retrieval
ptychography
title Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network
title_full Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network
title_fullStr Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network
title_full_unstemmed Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network
title_short Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network
title_sort enhancement of partially coherent diffractive images using generative adversarial network
topic partial coherence
coherent diffractive imaging
GAN (generative adversarial network)
phase retrieval
ptychography
url https://www.mdpi.com/2673-2688/3/2/17
work_keys_str_mv AT jongwookim enhancementofpartiallycoherentdiffractiveimagesusinggenerativeadversarialnetwork
AT marcmesserschmidt enhancementofpartiallycoherentdiffractiveimagesusinggenerativeadversarialnetwork
AT williamsgraves enhancementofpartiallycoherentdiffractiveimagesusinggenerativeadversarialnetwork