Systems and methods for blood pressure estimation using smart offset calibration

A computing device comprising:

• a processor;
• and
• a memory storing computer code instructions, the computer code instructions when executed by the processor cause the computing device to:
• associate a calibration photoplethysmographic (PPG) signal generated from a first sequence of image frames obtained from a photodetector of the computing device with one or more measurement values generated by a blood pressure measurement device different from the computing device;
• obtain a recording PPG signal generated from a second sequence of image frames obtained from the photodetector;
• select, based on the calibration PPG signal and the recording PPG signal, a blood pressure calibration model from a plurality of blood pressure calibration models, wherein each of the plurality of blood pressure calibration models is associated with a corresponding set of parameter variables determined using (i) the calibration PPG signal, (ii) the one or more measurement values and (iii) the recording PPG signal, and wherein each of the plurality of blood pressure calibration models is used to estimate calibrated blood pressure;
• and
• generate a calibrated blood pressure value using the selected blood pressure calibration model and the corresponding set of parameter variables.

A non-transitory computer readable medium including computer code instructions stored thereon, the computer code instructions when executed cause one or more processors to:

• associate a calibration photoplethysmographic (PPG) signal generated from a first sequence of image frames obtained from a photodetector of a computing device with one or more measurement values generated by a blood pressure measurement device different from the computing device;
• obtain a recording PPG signal generated from a second sequence of image frames obtained from the photodetector;
• select, based on the calibration PPG signal and the recording PPG signal, a blood pressure calibration model from a plurality of blood pressure calibration models, wherein each of the plurality of blood pressure calibration models is associated with a corresponding set of parameter variables determined using (i) the calibration PPG signal, (ii) the one or more measurement values and (iii) the recording PPG signal, and wherein each of the plurality of blood pressure calibration models is used to estimate calibrated blood pressure;
• and
• generate a calibrated blood pressure value using the selected blood pressure calibration model and the corresponding set of parameter variables.