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相关概念视频

Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

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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Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
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基于哈尔矩阵的光学多图像身份验证方法基于计算幽灵成像和最小化.

Juxuan Li, Liansheng Sui, Haiwei Lu

    Optics express
    |February 20, 2026
    PubMed
    概括

    这项研究引入了一种使用计算幽灵成像的新光学多图像身份验证方法. 该技术将图像数据嵌入载体图像中,增强安全性,即使采样率低,也可以进行身份验证.

    科学领域:

    • 计算机科学 计算机科学
    • 光学是什么?光学是什么?光学是什么?
    • 图像处理 图像处理

    背景情况:

    • 越来越多的数字内容需要强大的安全性和真实性验证方法.
    • 传统的图像身份验证方法与数据改和未经授权的访问作斗争.
    • 现有的技术往往直接加密图像,导致杂的加密文本和降低可感知度.

    研究的目的:

    • 提出一个高效和强大的光学多图像身份验证方法.
    • 提高图像认证过程的认知和感知能力.
    • 为了提高信息加载能力和对图像处理的稳定性.

    主要方法:

    • 使用基于哈尔矩阵的照明模式的计算幽灵成像.
    • 复合并使用空间复杂化,反向哈尔变换和阿诺德变换混合多个图像.
    • 嵌入从计算幽灵成像中获得的稀疏测量到运载图像的高频子图像中,使用哈尔波波变换.
    • 采用陈系统,用于混乱的序列生成和编码.
    • 应用L1-L2最小化,以在身份验证期间改善重建质量.

    主要成果:

    • 成功验证多个图像的高视觉质量和稳定性.
    • 在非常低的抽样比率 (2%) 中实现了成功的身份验证.

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  • 证明了对利过器的高强度.
  • 通过将稀疏测量嵌入到高频子图像中来扩大信息加载能力.

    • 结论:

    • 拟议的方法为光学多图像身份验证提供了一种新的方法.
    • 将稀疏测量嵌入高频子图像中可以提高安全性和稳定性.
    • 该技术显示出在图像验证系统中实际应用的巨大潜力.