Gyroscope vs. accelerometer measurements of motion from wrist PPG during physical exercise
Gyroscope vs. accelerometer measurements of motion from wrist PPG during physical exercise
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DOI：
10.1016/j.icte.2016.11.003
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发表时间：
2016-12-01
期刊：
影响因子：
5.4
通讯作者：
Jarchi, Delaram
中科院分区：
文献类型：
--
作者：
Casson, Alexander J.;Galvez, Arturo Vazquez;Jarchi, Delaram
许多可穿戴设备包括用于无创心率监测的PPG（光电体积描记）传感器。然而，PPG信号被运动干扰严重破坏，并且依赖于同时的运动测量来去除干扰。加速度计是常用的，但不能区分由于运动和重力加速度之间的加速度。本文比较了使用加速度计和陀螺仪的运动测量，以更完整地估计手腕运动。结果表明，这两个传感器信号是非常不同的，具有低相关性。当在手腕PPG心率算法中使用时，陀螺仪运动估计在一半情况下获得更好的性能。(C)2016年韩国通信信息科学研究所。Elsevier B的出版服务。V.这是CC BY-NC-ND许可下的开放获取文章。
Many wearable devices include PPG (photoplethysmography) sensors for non-invasive heart rate monitoring. However, PPG signals are heavily corrupted by motion interference, and rely on simultaneous motion measurements to remove the interference. Accelerometers are used commonly, but cannot differentiate between acceleration due to movement and acceleration due to gravity. This paper compares measurements of motion using accelerometers and gyroscopes to give a more complete estimate of wrist motion. Results show the two sensor signals are very different, with low correlations present. When used in a wrist PPG heart rate algorithm gyroscope motion estimates obtain better performance in half of the cases. (C) 2016 The Korean Institute of Communications Information Sciences. Publishing Services by Elsevier B. V. This is an open access article under the CC BY-NC-ND license.