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.