基于散斑振动测量的非接触式心率测量。

Contactless Heartbeat Measurement Using Speckle Vibrometry.

出版信息

Annu Int Conf IEEE Eng Med Biol Soc. 2022 Jul;2022:4604-4610. doi: 10.1109/EMBC48229.2022.9871712.

DOI:10.1109/EMBC48229.2022.9871712

Abstract

Monitoring of heart rate in patients in the general ward is necessary to assess the clinical situation of the patient. Currently, this is done via spot-checks on pulse rate manually or on heart rate using Electrocardiogram (ECG) by nurses. More frequent measurements would allow early detection of adverse cardiac events. In this work, we investigate a contactless measurement setup combined with a signal processing pipeline, which is based on speckle vibrometry (SV), to perform contactless heart rate monitoring of human subjects in a supine position, mimicking a resting scenario in the general ward. Our results demonstrate the feasibility of extracting heart rate with SV through varying textile thicknesses (i.e., 8 mm, 32 mm and 64 mm), with an error smaller than 3 beats per minute on average compared to the ground-truth heart rate derived from ECG.

摘要

对普通病房患者的心率进行监测，有助于评估患者的临床状况。目前，这是通过护士手动进行脉搏检查或使用心电图（ECG）进行心率检测来完成的。更频繁的测量可以更早地发现不良心脏事件。在这项工作中，我们研究了一种非接触式测量设置，结合了基于散斑振动测量（SV）的信号处理管道，用于在仰卧位对人体进行非接触式心率监测，模拟普通病房中的休息场景。我们的结果表明，通过改变纺织品的厚度（即 8mm、32mm 和 64mm），利用 SV 提取心率是可行的，与从 ECG 得出的真实心率相比，平均误差小于 3 次/分钟。