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相关概念视频

Reconstruction of Signal using Interpolation01:10

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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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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

Updated: Jul 29, 2025

Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
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具有高容量的动态信息隐藏方法,基于图像插曲和位翻转.

Cheng-Ta Huang1,2, Cheng-Yi Lin2, Chi-Yao Weng3

  • 1Department of Information Management, Yuan Ze University, Taoyuan 32003, Taiwan.

Entropy (Basel, Switzerland)
|May 27, 2023
PubMed
概括

这项研究引入了一种新的数据隐藏技术,即邻近像素 (NMINP) 的邻近平均值,以提高图像安全性. 与现有方法相比,NMINP提供了优越的隐藏能力和图像质量,而不需要位置地图.

关键词:
翻转了数据,翻转了数据.高容量的高容量.邻近平均插值 (NMI) 的方法.一个人的补充补充.

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科学领域:

  • 计算机科学 计算机科学
  • 信息安全 信息安全
  • 图像处理 图像处理

背景情况:

  • 快速的信息交换增加了信息安全风险.
  • 隐藏数据对于保护隐私至关重要.
  • 图像插值是隐藏数据的一个关键技术.

研究的目的:

  • 提出一种使用图像插值的新型数据隐藏方法.
  • 为了提高隐藏能力并保持图像质量.
  • 为了避免需要位置地图. 地图.

主要方法:

  • 由邻近像素 (NMINP) 进行发达邻居平均插值.
  • 嵌入秘密数据通过限制位来减少扭曲.
  • 用户补充格式用于翻转的秘密数据.

主要成果:

  • 与其他方法相比,NMINP表现出更高的隐藏能力.
  • NMINP实现了更高的峰值信号与噪声比率 (PSNR).
  • 隐藏能力提高了20%以上,PSNR提高了8%.

结论:

  • NMINP是一种有效的数据隐藏技术.
  • 该方法在隐藏能力和图像保真性方面提供了更好的性能.
  • NMINP为安全的图像数据嵌入提供了强大的解决方案.