Brno University of Technology Smartphone PPG Database (BUT PPG)

Brno University of Technology Smartphone PPG Database (BUT PPG) is a database created by the cardiology team at the Department of Biomedical Engineering, Brno University of Technology, for the purpose of evaluating PPG quality and estimation of heart rate (HR). The data comprises 3,888 10-second recordings of PPGs and associated ECG signals used for determination of reference HR. All of the signals contain QRS complex positions, most signals contain moreover accelerometric data (ACC), and single-value annotations of blood pressure, blood oxygen saturation and glycaemia. The data were collected from 50 subjects (25 female, 25 male) aged between 19 to 76 years at rest and during various types of movement. Recordings were carried out between August 2020 and December 2021. PPG data were collected by smartphones Xiaomi Mi9 and Huawei P20 Pro with sampling frequency of 30 Hz. Reference ECG signals and ACC data were recorded using a mobile recorder Bittium Faros 360 or 180 with a sampling frequency of 1,000 Hz (ECG) and 100 Hz (ACC). Each PPG signal includes annotation of quality and reference HR. PPG signal quality is indicated binary: 1 indicates good quality for HR estimation, 0 indicates signals where HR cannot be detected reliably and thus these signals are unsuitable for any analysis.

布拉格工业大学智能手机光电容积描记图（BUT PPG）数据库由布拉格工业大学生物医学工程学院的心脏病学团队创建，旨在评估光电容积描记图（PPG）质量及心率的估算。该数据集包含3,888个10秒长的PPG记录及其相应的ECG信号，用于参考心率的确定。所有信号均包含QRS复合波位置，其中大部分信号还包含加速度计数据（ACC），并对血压、血氧饱和度和血糖进行了单一值的标注。数据采集自50名受试者（25名女性，25名男性），年龄介于19至76岁之间，在休息状态及各类运动过程中进行。记录工作于2020年8月至2021年12月间完成。PPG数据由小米Mi9和华为P20 Pro智能手机采集，采样频率为30赫兹。参考ECG信号和ACC数据由Bittium Faros 360或180移动记录仪记录，ECG的采样频率为1,000赫兹，ACC的采样频率为100赫兹。每个PPG信号均包含质量标注和参考心率标注。PPG信号质量以二进制形式表示：1代表心率估算质量良好，0代表无法可靠检测心率的信号，此类信号不适用于任何分析。