Method for producing an augmented physiological signal based on a measurement of activity

A method of determining an augmented heart rate, the method comprising the following steps:

• obtaining a first signal and a second signal from a patient;
• generating an activity signal from the first signal;
• generating a video PPG from the second signal;
• calculating an activity weight factor from the activity signal;
• calculating a video PPG heart rate from the video PPG;
• calculating a first value from the product of the activity weight factor and an activity heart rate;
• calculating a second value from the product of the video PPG heart rate and a difference between one and the activity weight factor;
• and
• computing the augmented heart rate by combining the first value and the second value.

A method of determining an augmented heart rate variability, the method comprising the following steps:

• obtaining a first signal from a patient monitoring device;
• obtaining a second signal from the patient monitoring device;
• generating an activity signal from the first signal;
• generating a video PPG from the second signal;
• calculating an activity weight factor from the activity signal and calculating a video PPG heart rate variability from the video PPG;
• calculating a first value from the product of the activity weight factor and an activity heart rate variability;
• calculating a second value from the product of the video PPG heart rate variability a difference between one and the activity weight factor;
• and
• computing the augmented heart rate variability by combining the first value and the second value.

A method of determining an augmented vital sign, the method comprising the following steps:

• obtaining a first signal from a patient;
• obtaining a second signal from the patient;
• generating an activity signal from the first signal;
• generating a physiological signal from the second signal;
• calculating an activity weight factor from the activity signal;
• calculating a vital sign signal from the physiological signal;
• and
• computing the augmented vital sign by combining a first value and a second value, wherein the first value is the product of the activity weight factor and a vital sign activity level and the second value is the product of the vital sign signal and the activity weight factor less than one.