基于变量自编码器的数字水印ECG传感器设计评估
Chih-Yu Hsu1, Chih-Yin Chang2, Yin-Chi Chen2
1School of Transportation, Fujian University of Technology, Fuzhou 350118, China.
Sensors (Basel, Switzerland)
|April 12, 2025
概括
本研究介绍了使用变量自编码器 (VAE) 进行心电图 (ECG) 信号的水印,以提高数据安全性和评估传感器性能. 通过平均值 (μ) 或频率域的水印提供了强大的,高保真性的心电图信号保护.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 数字水印是指数字水印.
背景情况:
- 设计有效的心电图 (ECG) 传感器电路对于准确的心脏信号检测和调节至关重要.
- 数字水印对于数据安全,真实性和医疗保健中的版权保护至关重要.
研究的目的:
- 为了评估心电图传感器的性能,使用由变量自编码器 (VAE) 生成的水印信号.
- 为了研究和比较ECG信号的不同水印策略.
主要方法:
- 使用VAE框架生成嵌入式水印的多种ECG信号.
- 实施和比较三种水印技术:平均 (μ) 隐性空间,隐性变量 (z) 和频域.
- 在不同条件下使用平均平方误差 (MSE) 评估信号保真度.
主要成果:
- 在平均值 (μ) 和频率域中的水印产生了低MSE和稳定的信号保真度.
- 这些方法在不同的水印强度,潜伏空间尺寸和噪音水平上都表现出了稳定性.
- 参数变化对性能的影响最小,表明适合用于ECG信号保存.
结论:
- 平均值 (μ) 和频域水印方法对ECG传感器应用有效,确保数据安全和信号质量.
- 基于VAE的水印增强了现代医疗保健的ECG信号弹性和真实性.
- 这种方法支持可靠的信号采集,并保护数字心电图内容.
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