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相关概念视频

IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

936
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
936

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相关实验视频

Updated: Jul 16, 2025

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment
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源相机识别与强大的设备指纹:从基于图像到基于视频的方法的演变.

Manisha1,2, Chang-Tsun Li2, Karunakar A Kotegar1

  • 1Department of Data Science and Computer Applications, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India.

Sensors (Basel, Switzerland)
|September 9, 2023
PubMed
概括

这项研究引入了一种新的方法,通过使用一种新型设备特定的指纹来识别视频的源摄像头. 这种方法克服了视频处理方面的挑战,改善了多媒体取证.

关键词:
PRNUNU PRNUNU 在此之前,卷积神经网络是一种卷积神经网络.深度学习是一种深度学习.多媒体法医学源摄像头识别 源摄像头识别视频取证科学视频取证科学

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Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish
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Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans
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Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans

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相关实验视频

Last Updated: Jul 16, 2025

Combining Eye-tracking Data with an Analysis of Video Content from Free-viewing a Video of a Walk in an Urban Park Environment
08:25

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科学领域:

  • 数字法医学数字法医学
  • 多媒体安全 多媒体安全
  • 图像和视频分析 图像和视频分析

背景情况:

  • 数字多媒体内容的普及,增加了对准确的源摄像头识别的需求.
  • 现有的以图像为基础的方法由于处理压缩和像素错位等工件而与视频作斗争.
  • 像照片响应不均 (PRNU) 这样的高频指纹对于视频源识别无效.

研究的目的:

  • 开发一种可靠的视频源摄像头识别方法.
  • 解决现有技术在处理视频处理中断方面的局限性.
  • 在一个框架内统一图像和视频源标识.

主要方法:

  • 提出了一种新的方法,利用全球低频和中频频段的随机指纹.
  • 利用了这个指纹对高频破坏性影响的弹性.
  • 使用新的非PRNU设备特定指纹进行统一识别.

主要成果:

  • 在最近的智能手机数据集上为源摄像机模型和单个设备识别建立了新的基准.
  • 与最先进的技术相比,证明了卓越的性能.
  • 成功统一的图像和视频源识别.

结论:

  • 这种新的方法有效地识别了视频中的源摄像头,克服了传统方法的局限性.
  • 非PRNU指纹提供了对视频处理工件的弹性.
  • 这项工作通过为图像和视频源识别提供统一的框架来推进多媒体法医学.