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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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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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Imaging Biological Samples with Optical Microscopy01:18

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Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
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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

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

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进步的3D表面成像:单轴结构光照明全光学摄像头与机器学习集成.

Dominique Davenport, Scott A Steinmetz, Benjamin M Goldberg

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    此摘要是机器生成的。

    我们开发了一种新的单轴3D结构光照明 (SLI) 全光相机. 这种3D成像系统克服了表面纹理的限制,并使用机器学习算法提高了分辨率和范围.

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    Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution
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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 3D成像技术 3D成像技术
    • 机器学习应用 机器学习应用

    背景情况:

    • 结构光照明 (SLI) 是一种3D表面成像技术.
    • 传统的SLI通常需要离轴投影来进行深度测量.
    • 全光成像 (PI) 提供单轴3D成像,但依赖于表面纹理.

    研究的目的:

    • 为了展示一个单轴3D SLI全光镜相机.
    • 将单轴成像优势与表面纹理独立性相结合.
    • 探索机器学习以提高3D SLI性能.

    主要方法:

    • 开发了一个同轴SLI3D全光镜相机.
    • 实现了传统的功能跟踪算法.
    • 集成的机器学习 (ML) 算法用于数据处理.

    主要成果:

    • 达到的深度灵敏度降至0.2% dz/z0.0.
    • 证明独立于表面质地.
    • 通过ML展示了增强的分辨率和测量范围.

    结论:

    • 单轴SLI 3D全光镜相机适用于现场地形测量.
    • 这项技术在具有挑战性的环境中是有效的,如高温或受限制的几何形状.
    • 该系统在缺乏可追踪表面纹理的物体上表现良好.