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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

13.3K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

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Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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相关实验视频

Updated: Jul 12, 2025

Visualization of Ambient Mass Spectrometry with the Use of Schlieren Photography
06:49

Visualization of Ambient Mass Spectrometry with the Use of Schlieren Photography

Published on: June 20, 2016

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基于事件的以背景为导向的Schlieren.

Shintaro Shiba, Friedhelm Hamann, Yoshimitsu Aoki

    IEEE transactions on pattern analysis and machine intelligence
    |October 30, 2023
    PubMed
    概括
    此摘要是机器生成的。

    这项研究引入了一种使用事件和摄像头进行空气对流成像的新方法,克服了传统技术的局限性. 这种方法可以在黑暗条件下获得清晰的图像,并进行详细的慢动作分析.

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    Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
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    Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique
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    Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique

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    相关实验视频

    Last Updated: Jul 12, 2025

    Visualization of Ambient Mass Spectrometry with the Use of Schlieren Photography
    06:49

    Visualization of Ambient Mass Spectrometry with the Use of Schlieren Photography

    Published on: June 20, 2016

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    Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
    11:57

    Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

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    Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique
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    Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique

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    科学领域:

    • 光学物理学的光学物理学
    • 流体动力学 流体动力学
    • 计算机视觉 计算机视觉

    背景情况:

    • 施莱伦成像可视化透明的媒体流没有播种.
    • 传统方法需要高分辨率的摄像头,限制照明和计算.
    • 事件摄像机提供高动态范围,时间分辨率和数据效率.

    研究的目的:

    • 开发一种新的技术,使用事件和摄像头来感知空气对流.
    • 提供第一个理论分析,将事件数据和施莱伦成像连接起来.
    • 克服传统的基于框架的schlieren方法的局限性.

    主要方法:

    • 作为一个变量优化问题制定.
    • 结合了线性事件生成模型与物理动机的参数化.
    • 估计了空气密度的时间导数.

    主要成果:

    • 使用事件摄像头实现了与基于的光流技术相似的结果.
    • 在黑暗条件下启用成像,而基于的schlieren则失败.
    • 通过利用事件摄像机的优势,促进了慢动作分析.

    结论:

    • 开创了流体动力学事件摄像机的新应用堆.
    • 展示了事件摄像机在增强schlieren成像方面的潜力.
    • 发布了源代码和第一个高质量的框架/事件数据集.