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相关概念视频

Area Computation by the Alternative Coordinate Method01:24

Area Computation by the Alternative Coordinate Method

157
The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
157

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相关实验视频

Updated: Sep 11, 2025

Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
10:16

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对CCGH的快速计算方法适用于各种平面计算机生成全息图计算方法.

Akifumi Kashiwagi, Kodai Ono, Yuji Sakamoto

    Applied optics
    |August 12, 2025
    PubMed
    概括
    此摘要是机器生成的。

    一种新方法可以从现有的平面计算机生成全息图 (CGH) 快速计算圆柱形计算机生成全息图 (CCGH). 这种技术有效地传播光场,简化了CCGH的创建,而不改变传统的CGH方法.

    更多相关视频

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
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    相关实验视频

    Last Updated: Sep 11, 2025

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    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 计算成像技术的成像
    • 全息影像的使用方法.

    背景情况:

    • 创建平面计算机生成全息图 (CGH) 的常规方法已经成熟.
    • 创建圆柱形计算机生成全息图 (CCGH) 通常需要单独的,复杂的计算.
    • 在全息显示和光学系统设计中,有效地将平面CGH数据转换为CCGH是一个挑战.

    研究的目的:

    • 提出一种新且高效的方法,用于从先前存在的平面CGH计算CCGHs.
    • 为了使平面CGH数据能够快速转换为圆柱形格式.
    • 促进将CCGH发电集成到现有的CGH工作流程中.

    主要方法:

    • 拟议的方法利用由传统平面CGH技术计算的对象光场.
    • 快速里埃转换 (FFT) 用于有效计算光线从平面全息图平面到圆柱形表面的传播.
    • 该方法旨在与各种现有的平面CGH计算方法兼容.

    主要成果:

    • 与传统方法相比,证明了CCGH计算的显著加快.
    • 从不同的平面CGH数据集中成功生成CCGH,而没有对原始方法进行修改.
    • 验证了向圆柱形表面传播的光场的准确性.

    结论:

    • 拟议的方法提供了一个快速而简单的方法,可以从平面CGHs创建CCGHs.
    • 这种技术与现有的平面CGH生成工作流程无集成.
    • 它将CGH技术的适用性扩展到圆柱形显示器和光学应用.