System and method of multi-sensor fusion of physiological measurements

A system for fusion of physiological sensor measurements in a subject having a plurality of sensor coupled thereto, each of the sensors producing a sensor measurement related to a physiological parameter, the system comprising:

• a statistical model affecting the fusion of the sensor measurements;
• a statistical filter circuit receiving the sensor measurements and said statistical model and producing a fused parameter estimate for each possible combination of the sensor measurements from the plurality of sensors in which each of the sensor measurements in said combinations are considered to be acceptable or unacceptable;
• and
• a confidence calculator coupled to said filter circuit to receive said fused parameter estimates and to determine a confidence level for each of said fused parameter estimates indicative of an accuracy of each of said fused parameter estimates, said confidence calculator selecting one of said fused parameter estimate as a final parameter estimates based on said confidence level.

A method for fusion of sensor measurements in a subject having a plurality of sensor coupled thereto, each of the sensors producing a sensor measurement related to a physiological parameter, the method comprising the steps of:

• generating a statistical model affecting the fusion of the sensor measurements;
• producing a fused parameter estimate based on the sensor measurements and said statistical model for each possible combination of the sensor measurements from the plurality of sensors in which each of the sensor measurements in said combinations are considered to be acceptable or unacceptable;
• determining a confidence level value for each of said fused parameter estimates indicative of an accuracy of each of said parameter estimates;
• and
• selecting a final parameter estimate based on said confidence level.