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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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相关实验视频

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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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基于阶段设计的LED芯片阵列的高率,大深度范围的结构光投影仪.

Hao Xing, Shaoting She, Jie Wang

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    此摘要是机器生成的。

    高速相位转移造型测量 (PSP) 现在使用一种新的LED阵列技术提供了大深度范围. 这项创新能够在高率下精确地3D测量移动的物体.

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    科学领域:

    • 光学计量学 在光学计量学
    • 3D成像是3D成像中的一种.
    • 计算机视觉 计算机视觉

    背景情况:

    • 阶段转移造型测量 (PSP) 是一种精确的光学3D测量技术.
    • 高速PSP是一个不断增长的研究领域.
    • 目前的高率PSP方法由于二进制失焦投影而限制了测量深度.

    研究的目的:

    • 为PSP开发一个高率,大深度范围的正弦边缘投影技术.
    • 为了克服现有的高速PSP方法的深度范围限制.

    主要方法:

    • 提出了一种新形边缘投影技术,使用一个步骤设计的LED芯片阵列.
    • 基于这种技术设计和制造了一台PSP投影机.
    • 在1kHz的率下对静态和动态目标进行了3D重建实验.
    • 以100kHz的率进行了边缘投影,并进行了光检测器验证.

    主要成果:

    • 实现了静态面罩和动态旋转风扇的高率 (1kHz) 3D重建.
    • 通过光电探测器实验证明了超出100kHz的率的潜力.
    • 该技术成功地在聚焦和失焦状态下生成阴形边缘,扩大测量深度.

    结论:

    • 开发的PSP投影技术提供了高率和大深度范围的能力.
    • 这种技术对动态目标的3D测量非常有益.
    • 这项创新解决了当前高速PSP系统的关键局限性.