不接触式高精度脉冲率监测系统,用于在不同运动状态下移动的主体
Qing Zhang1, Xingsen Lin1, Yuxin Zhang1
1School of Biomedical Engineering, Hainan University, Haikou, 570228, Hainan, China.
Medical & biological engineering & computing
|July 20, 2023
概括
这项研究引入了一种新的远程光电发热 (rPPG) 系统,使用高速摄像头和运动抑制来准确,无接触地监测脉冲率,即使主体运动.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 医疗成像医学成像
背景情况:
- 远程光电脉冲图 (rPPG) 通过彩色摄像头提供非接触式脉冲率监测.
- 现有的rPPG方法受到运动工件和环境光变化的限制,影响了准确性.
- 精确的脉率监测对于个人医疗保健和智能医疗系统至关重要.
研究的目的:
- 开发一个强大的rPPG系统,用于对移动物体的高精度脉冲率监测.
- 为了克服运动工件和环境光变化的局限性,在非接触式脉冲传感中.
- 为了评估高速摄像机和运动抑制算法的有效性.
主要方法:
- 使用高速摄像头进行视频采集.
- 实现了一个计算效率高的运动抑制算法 (平面-直角-皮肤,POS).
- 采用量子化方法来评估不同的率和脉冲率监测算法.
主要成果:
- 该系统展示了对移动主体的高精度脉冲率监测.
- 使用180fps视频和POS算法实现了平均绝对误差低于5bpm.
- 相对准确率达到了94.5%,这表明相对于现有方法的显著改进.
结论:
- 拟议的rPPG系统有效地减轻了运动工件和环境光问题.
- 高速成像与POS算法相结合,可以实现准确,可扩展的脉冲监控.
- 这项技术在推进个人医疗保健和智能健康监测方面具有重大潜力.
更多相关视频
08:09Multifunctional Setup for Studying Human Motor Control Using Transcranial Magnetic Stimulation, Electromyography, Motion Capture, and Virtual Reality
Published on: September 3, 2015
11.0K
04:06Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography
Published on: January 12, 2024
672
相关概念视频
01:30Pulse rhythm
842
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...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
842
01:13Special considerations while measuring pulse
617
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
617
01:30Equipments Used To Measure Blood Pressure
1.1K
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
1.1K
01:24Pulse Oximetry
362
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
362
01:23Holter Monitor: 24-Hour Monitoring
59
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
59