Technology for processing an electrocardiograph (ECG) signal is disclosed. The ECG signal can be identified, wherein the ECG signal is affected by baseline wander noise. Signal processing can be performed on the ECG signal affected by baseline wander noise in order to determine a start time and an end time for individual waveforms in the ECG signal affected by baseline wander noise. Features for the individual waveforms in the ECG signal can be extracted, wherein the features indicate one or more cardiac function metrics.
