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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

14.3K
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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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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Light Acquisition02:16

Light Acquisition

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In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
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相关实验视频

Updated: Sep 11, 2025

Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope
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Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope

Published on: August 15, 2014

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结构光,每秒有百万个光平面.

Dhawal Sirikonda, Praneeth Chakravarthula, Ioannis Gkioulekas

    IEEE transactions on pattern analysis and machine intelligence
    |August 14, 2025
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    概括
    此摘要是机器生成的。

    本研究介绍了一种新的结构光系统,可以实现1000/秒的3D扫描,比以前的方法快得多. 通过使用事件摄像头和自适应扫描,它克服了以前高速3D成像的速度限制.

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    Determining 3D Flow Fields via Multi-camera Light Field Imaging
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    A Guide to Structured Illumination TIRF Microscopy at High Speed with Multiple Colors
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    相关实验视频

    Last Updated: Sep 11, 2025

    Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope
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    Published on: August 15, 2014

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    Determining 3D Flow Fields via Multi-camera Light Field Imaging
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    A Guide to Structured Illumination TIRF Microscopy at High Speed with Multiple Colors
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    科学领域:

    • 计算机视觉 计算机视觉
    • 光学工程是指光学工程.
    • 机器人技术 机器人技术 机器人技术

    背景情况:

    • 高速3D扫描对于动态场景捕获至关重要.
    • 以前使用事件摄像头的结构光系统受到照明转向速度的限制.
    • 为了实现更快的3D扫描,需要克服照明和成像方面的瓶.

    研究的目的:

    • 开发一种结构化光系统,能够以前所未有的速度进行全3D扫描.
    • 为了克服基于事件摄像头的3D扫描中的照明转向速度限制.
    • 通过适应性策略,提高3D扫描速度超出理论相机限制.

    主要方法:

    • 开发了一种定制的声光光学光扫描设备,每秒投射200万个光平面.
    • 将声光扫描仪与事件摄像机相结合,用于高速数据采集.
    • 实施了适应性扫描策略,利用事件摄像机异步操作来选择性地照亮感兴趣的区域.

    主要成果:

    • 实现了以每秒1000 (fps) 的全3D扫描,比以前的系统快四倍.
    • 通过利用事件摄像机的全带宽,将速度瓶从照明方向转移到成像侧.
    • 通过自适应照明,证明了有效的扫描速度超过了相机理论限制的数量级.

    结论:

    • 这种新型结构光系统显著提升了高速3D扫描能力.
    • 声光扫描和事件摄像机与适应性策略的结合为超快3D成像提供了通往超快3D成像的道路.
    • 这项技术在需要快速3D重建动态环境的领域有潜在的应用.