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 48 10-second recordings of PPGs and associated ECG signals used for determination of reference HR. The data were collected from 12 subjects (6 female, 6 male) aged between 21 to 61 years. Recordings were carried out between August 2020 and October 2020. PPG data were collected by smartphone Xiaomi Mi9 with sampling frequency of 30 Hz. Reference ECG signals were recorded using a mobile ECG recorder (Bittium Faros 360) with a sampling frequency of 1,000 Hz. 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PPG数据库（BUT PPG）是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的，旨在评估PPG质量及心率（HR）的估算。该数据集包含48个10秒的PPG记录及相应的ECG信号，用于参考心率的确定。数据收集自12名受试者（6名女性，6名男性），年龄介于21至61岁之间。记录时间介于2020年8月至2020年10月。PPG数据由小米Mi9智能手机采集，采样频率为30赫兹。参考ECG信号由Bittium Faros 360便携式ECG记录仪采集，采样频率为1,000赫兹。每个PPG信号均包含质量标注及参考心率。PPG信号质量以二进制表示：1表示适合心率估算的高质量信号，0表示心率无法可靠检测的信号，此类信号不适用于任何分析。