基于光和位移补偿的iPPG用于复杂检测条件下的心率测量.
Shubo Bi1,2, Haipeng Wang1, Shuaishuai Zhang2
1School of Intelligent Manufacturing, Jiangsu College of Engineering and Technology, Nantong 226006, China.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
这项研究引入了一种新的光聚体显微镜 (PPG) 算法,以准确测量心率,即使在具有挑战性的条件下. 增强的iPPG方法通过补偿环境光和主体运动来提高准确性.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 可穿戴技术可穿戴技术
背景情况:
- 摄影脉镜 (iPPG) 是一种用于心率监测的非侵入性技术.
- 传统的iPPG算法由于环境因素 (如环境光和主体运动) 而难以准确.
- 准确的心率测量对于各种健康和健身应用至关重要.
研究的目的:
- 在复杂的检测条件下开发一个改进的iPPG算法,用于在复杂的检测条件下进行可靠的心率测量.
- 通过解决环境光和运动引起的偏差,提高iPPG的准确性和可靠性.
- 通过实验测量来验证拟议的算法的有效性.
主要方法:
- 一个新的iPPG算法集成光和位移补偿子算法.
- 使用基于平均波器的光调节策略进行光补偿,以减轻环境光的变化.
- 移位补偿采用基于光流的策略来抵消运动工件.
- 实验验证将拟议的方法与传统的IPPG技术进行比较.
主要成果:
- 拟议的光和位移补偿iPG算法显示出卓越的性能.
- 平均测量精度在不同的检测距离上增加了3.8%.
- 与传统的iPPG相比,在不同的光强度下,平均测量精度提高了5.0%.
- 该方法有效地减少了由环境因素引起的测量偏差.
结论:
- 综合光和位移补偿策略在复杂环境中显著提高了iPPG的准确性.
- 拟议的算法在现实场景中为心率监测提供了更可靠的解决方案.
- 这一进步有可能改善非侵入性心血管监测设备.
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