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相关概念视频

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

7.0K
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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Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

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Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
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相关实验视频

Updated: Jul 12, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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基于LRR对象的多极化叠加编码相位模式的3D重建方法.

Zhenmin Zhu, Duoduo You, Xingning Zeng

    Optics express
    |October 20, 2023
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    概括
    此摘要是机器生成的。

    这项研究引入了一种使用光极化进行结构光测量的新方法,提高了反射表面的3D重建精度.

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    相关实验视频

    Last Updated: Jul 12, 2025

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    9.8K
    Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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    Imaging Intermediate Filaments and Microtubules with 2-dimensional Direct Stochastic Optical Reconstruction Microscopy
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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 3D计量学 3D计量学
    • 计算机视觉 计算机视觉

    背景情况:

    • 传统的结构光测量仅依赖于光强度.
    • 光极化为编码信息提供了一个未充分利用的维度.
    • 极化结构光的现有方法可能是复杂或低效的.

    研究的目的:

    • 提出和验证一种新的方法,用于使用多个极化状态编码结构光.
    • 为了利用光极化作为一种超越强度的额外信息通道.
    • 提高3D重建的准确性和质量,特别是对于具有挑战性的表面.

    主要方法:

    • 开发了一个极化模型,将光色与特定的极化状态联系起来.
    • 通过叠加多个极化状态来编码结构化的光.
    • 在没有机械偏振器旋转的情况下,获得了含有相位信息的偏振结构光.

    主要成果:

    • 证明了投射条纹的波形质量得到了改善.
    • 在3D重建结果中实现了更高的准确性.
    • 成功地将该方法应用于高度反射的物体,克服了一个常见的挑战.

    结论:

    • 拟议的基于偏振的方法增强了结构光测量.
    • 这种技术为复杂表面的3D重建提供了更强大的方法.
    • 利用光极化显著提高了测量准确度和精度.