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相关概念视频

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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X-ray Imaging01:24

X-ray Imaging

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
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相关实验视频

Updated: Sep 11, 2025

Volume Segmentation and Analysis of Biological Materials Using SuRVoS Super-region Volume Segmentation Workbench
11:38

Volume Segmentation and Analysis of Biological Materials Using SuRVoS Super-region Volume Segmentation Workbench

Published on: August 23, 2017

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XPtychoSR:用于X射线图形摄影的自我监督的超分辨率框架.

Mengnan Liu, Yu Han, Xiaoqi Xi

    Applied optics
    |August 12, 2025
    PubMed
    概括

    一种新的自我监督超分辨率方法,XPtychoSR,增强了X射线图像学成像. 它在没有预训练的情况下实现了卓越的细节分辨率,改善了各种样品的纳米尺度成像.

    科学领域:

    • 先进的成像技术可以提供先进的成像技术.
    • 材料科学是一种材料科学.
    • 生物物理学的生物物理.

    背景情况:

    • 图形摄影对于纳米尺度成像至关重要,但需要提高分辨率.
    • 目前的深度学习超分辨率方法在X射线图解数据方面面临挑战.
    • 现有的插值方法不足以进行高度细节的重建.

    研究的目的:

    • 介绍XPtychoSR,一种自我监督的超分辨率方法,用于大视野的X射线图解.
    • 为了增强重建图像中的细节表达力和分辨率.
    • 为了提供一个经济有效的解决方案,而无需硬件修改.

    主要方法:

    • 开发了XPtychoSR,一种自我监督的深度学习方法.
    • 使用的内容和边缘先验与U-net架构相结合.
    • 采用物理衍射模型来引导自我监督的学习.

    主要成果:

    • 与现有的超分辨率技术相比,XPtychoSR在模拟和实验中实现了更高的细节分辨率.
    • 该方法有效地增强大视野X射线图解数据中的细结构.
    • 废弃性研究证实了单个成分和整体框架的有效性.

    更多相关视频

    Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography
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    Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution
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    Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography
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    Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

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    结论:

    • XPtychoSR提供了一种新的自主监督解决方案,用于高分辨率的X射线图解.
    • 该方法可以提高成像质量,以便对纳米结构进行详细分析.
    • XPtychoSR扩大了X射线图解学在科学研究中的应用范围.