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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

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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

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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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用光学相位阵列进行相位偏差盲计算幽灵成像.

Sota Hirata, Naoki Matsuda, Kento Komatsu

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    此摘要是机器生成的。

    我们介绍了一种使用光学相位阵列 (OPA) 的新计算幽灵成像 (CGI) 方法,可以同时估计未知的相位偏差,并从强度测量中重建对象信息.

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    科学领域:

    • 光学是什么?光学是什么?光学是什么?
    • 计算成像技术的成像
    • 计量学 计量学是一门学科.

    背景情况:

    • 计算幽灵成像 (CGI) 能够使用单像素探测器进行对象重建.
    • 光学相位阵列 (OPA) 提供对光场的动态控制,但通常会遭受未知的相位偏差.
    • 准确的相位信息对于高保真成像至关重要.

    研究的目的:

    • 开发一种新的CGI方法,利用具有内在未知的阶段偏差的OPA.
    • 为了同时估计对象信息和未知的相位偏差.
    • 为了实现基于OPA的CGI在没有参考光的情况下获得复杂的振幅场.

    主要方法:

    • 用OPA产生的多个光场照亮一个物体,随机相位移.
    • 使用单像素探测器捕获物体的散射光.
    • 从测量的强度信号同时估计对象和相位偏差.
    • 通过向探测器添加虹膜来实现复杂的振幅场采集,用于在没有参考光的情况下进行强度测量.

    主要成果:

    • 对于同时对象和相位偏差估计的拟议方法的数值演示.
    • 在基于OPA的CGI中成功获得复杂的振幅场.
    • 验证方法的有效性,即使在未知的阶段偏差.

    结论:

    • 拟议的方法有效地解决了基于OPA的CGI中未知阶段偏差的挑战.
    • 它可以实现强大的对象重建和复杂的振幅场采集.
    • 这项工作通过简化校准要求,推进了基于OPA的成像技术.