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相关概念视频

Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

179
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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Sound Waves: Interference00:53

Sound Waves: Interference

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Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
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相关实验视频

Updated: Jun 11, 2025

Characterization of Anisotropic Leaky Mode Modulators for Holovideo
09:36

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

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一种基于图像加密的强大的音频隐形图像技术,使用不同的混乱地图.

Marwa A Nasr1, Walid El-Shafai1,2, El-Sayed M El-Rabaie1

  • 1Department of Electronics and Electrical Communication Engineering, Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt.

Scientific reports
|September 27, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的音频隐藏技术,将图像加密与混乱地图和音频隐藏技术相结合,以确保数据的隐藏. 该方法增强了对攻击的安全性和稳定性,保持了音频质量.

关键词:
音频隐形图像 (steganography) 是一种音频隐形图像.基于混乱的加密技术.图像加密 图像加密信息安全信息安全.

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相关实验视频

Last Updated: Jun 11, 2025

Characterization of Anisotropic Leaky Mode Modulators for Holovideo
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Published on: March 19, 2016

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Stereoacuity Improvement using Random-Dot Video Games
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科学领域:

  • 信息安全 信息安全
  • 数字水印是指数字水印.
  • 密码学 密码学 密码学 密码学

背景情况:

  • 传统的密码学和隐形学在独立使用数据保护时存在局限性.
  • 音频隐藏技术是通过在音频信号中隐藏信息来实现安全的秘密通信的关键技术.
  • 结合加密和隐形图形,为多媒体数据提供了更高的安全性和稳定性.

研究的目的:

  • 通过将使用混乱地图的图像加密与音频隐形图集成,开发一种强大而安全的音频隐形图技术.
  • 提高隐藏数据的安全性和稳定性,以抵御各种攻击.
  • 在嵌入过程中保持封面音频信号的感知质量.

主要方法:

  • 图像加密使用汉农,贝克和阿诺德混沌地图的组合.
  • 将加密图像嵌入覆盖音频信号的高频组件中.
  • 使用反向短时间里叶变换 (ISTFT) 进行嵌入和提取.

主要成果:

  • 提出的技术证明了对各种攻击的稳定性.
  • 实现了高峰信号噪声比 (PSNR) 91.2 dB和平均平方误差 (MSE) 7.5 × 10-10的高峰信号噪声比 (PSNR),表明了出色的感知质量.
  • 该加密图像通过了国家标准与技术研究所 (NIST) 的统计测试套件,证实了其随机性和安全性.

结论:

  • 基于混乱地图的图像加密和音频盗窃的综合方法为秘密通信提供了安全和强大的解决方案.
  • 该技术有效地保持了封面音频信号的质量,同时确保了隐藏数据的安全性.
  • 这种方法在多媒体数据安全性和隐形图形学方面取得了重大进展.