Heart Rate Correction Using External Data

A computer implemented method for improving a heart rate prediction, comprising:

• receiving a photoplethysmogram (PPG) dataset generated by a PPG sensor;
• inputting the PPG dataset to a machine learning model to classify a PPG signal in the PPG dataset as a predicted heart rate, wherein the machine learning model has been trained using PPG training data to classify a signal from a generic data source as a heart rate;
• receiving accelerometer data generated by an accelerometer;
• inputting the accelerometer data to the machine learning model to classify an acceleration signal contained in the accelerometer data as a heart rate, wherein movement represented by the acceleration signal mimics the heart rate;
• identifying a PPG heartbeat confidence score for the PPG signal that corresponds to the acceleration signal that mimics the heart rate;
• and
• removing the PPG heartbeat confidence score as a heart rate candidate to improve the accuracy of the heart rate prediction.

A non-transitory machine-readable storage medium including instructions embodied thereon, wherein the instructions, when executed by at least one processor:

• receive a photoplethysmogram (PPG) dataset generated by a PPG sensor;
• input the PPG dataset to a machine learning model to classify a PPG signal in the PPG dataset as a heart rate prediction, wherein a PPG heartbeat confidence score is assigned to the PPG signal;
• receive accelerometer data generated by an accelerometer, wherein the accelerometer data corresponds to a time frame of the PPG dataset;
• input the accelerometer data to the machine learning model to classify an acceleration signal contained in the accelerometer data as a heart rate, wherein a motion-based heart rate confidence score is assigned to the acceleration signal, and wherein movement represented by the acceleration signal mimics the heart rate;
• identify a PPG heartbeat confidence score that corresponds to the motion-based heart rate confidence score;
• and
• remove the PPG signal associated with the PPG heartbeat confidence score as a heart rate candidate to improve accuracy of the heart rate prediction.