Deep convolutional neural network image processing method providing improved signal-to-noise ratios in electron holography

IF 1.8 4区 工程技术 Microscopy Pub Date : 2021-10-01 DOI:10.1093/jmicro/dfab012
Yusuke Asari;Shohei Terada;Toshiaki Tanigaki;Yoshio Takahashi;Hiroyuki Shinada;Hiroshi Nakajima;Kiyoshi Kanie;Yasukazu Murakami
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引用次数: 4

Abstract

An image identification method was developed with the aid of a deep convolutional neural network (CNN) and applied to the analysis of inorganic particles using electron holography. Despite significant variation in the shapes of α-Fe 2 O 3 particles that were observed by transmission electron microscopy, this CNN-based method could be used to identify isolated, spindle-shaped particles that were distinct from other particles that had undergone pairing and/or agglomeration. The averaging of images of these isolated particles provided a significant improvement in the phase analysis precision of the electron holography observations. This method is expected to be helpful in the analysis of weak electromagnetic fields generated by nanoparticles showing only small phase shifts.
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在电子全息术中提高信噪比的深度卷积神经网络图像处理方法
利用深度卷积神经网络(CNN)开发了一种图像识别方法,并将其应用于电子全息术分析无机粒子。尽管通过透射电子显微镜观察到α-Fe2O3颗粒的形状存在显著变化,但这种基于CNN的方法可用于识别分离的纺锤形颗粒,这些颗粒与其他经过配对和/或团聚的颗粒不同。对这些分离粒子的图像进行平均,显著提高了电子全息术观测的相位分析精度。该方法有望有助于分析仅显示小相移的纳米颗粒产生的弱电磁场。
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来源期刊
Microscopy
Microscopy 工程技术-显微镜技术
自引率
11.10%
发文量
0
审稿时长
>12 weeks
期刊介绍: Microscopy, previously Journal of Electron Microscopy, promotes research combined with any type of microscopy techniques, applied in life and material sciences. Microscopy is the official journal of the Japanese Society of Microscopy.
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In This Issue Scanning ion-conductance microscopy with a double-barreled nanopipette for topographic imaging of charged chromosomes Operando observation of magnetism in HDD writing heads by spin-polarized scanning electron microscopy Deep convolutional neural network image processing method providing improved signal-to-noise ratios in electron holography Electron transfer in LiMn1.5Ni0.5O4 during charging studied with soft X-ray spectrometry
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