低复杂度计时校正方法用于心率估计,使用远程光电显微镜
Chun-Chi Chen1, Song-Xian Lin1, Hyundoo Jeong2
1Electrical Engineering Department, National Chiayi University, Chiayi 600355, Taiwan.
Sensors (Basel, Switzerland)
|January 25, 2025
概括
这项研究引入了计时校正方法,以使用远程光电缩图 (rPPG) 准确估计心率 (HR),即使有不规则数据. 这些低复杂度的技术提高了医疗保健应用的HR监控可靠性.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 医疗保健技术 技术 医疗保健 技术
背景情况:
- 远程光电脉冲扫描 (rPPG) 提供非接触式,持续的心率 (HR) 监测.
- 实际的rPPG应用面临的挑战是不规则的采样率和数据丢失,影响了HR估计的准确性.
- 现有的HR估计方法通常假设固定的抽样间隔,限制了现实世界的适用性.
研究的目的:
- 开发和评估低复杂度的计时校正方法,以改进从rPPG信号的HR估计.
- 为解决不规则采样和rPPG测量数据缺失造成的不准确性.
- 确定适用于边缘计算医疗保健应用的高效时间校正技术.
主要方法:
- 实现线性,立方体和过器插值用于时间校正.
- 对HR估计准确性的不同插值方法进行比较分析.
- 计算复杂性的评估,以适应边缘计算.
主要成果:
- 低复杂度的计时校正方法显著提高了从rPPG信号的HR估计可靠性.
- 立方互波提供了强大的信号重建,但需要更高的计算资源.
- 线性和波介导为不规则采样下HR估计提供了有效的替代方案.
结论:
- 时间校正对于在现实场景中基于rPPG准确的HR估计至关重要.
- 提出的方法提高了医疗保健非接触式HR监控的稳定性.
- 有效的插值技术使得实用边缘计算应用能够实现远程健康监测.
相关概念视频
01:30Pulse rhythm
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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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01:29Electrocardiogram
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An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
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01:24ECG Interpretation of Rhythms
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An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
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