Apparatus and method for estimating bio-information

A method of estimating bio-information of a user, the method comprising:

• measuring a plurality of pulse wave signals from an object;
• obtaining sensor position information identifying a sensor position on the object for each of the plurality of pulse wave signals, based on a pulse wave sensor measuring each of the plurality of pulse wave signals;
• estimating first bio-information at each sensor position based on each of the plurality of pulse wave signals;
• and
• estimating second bio-information based on a blood vessel position of the object, each sensor position, and the first bio-information at each sensor position.

An apparatus for estimating bio-information of a user, the apparatus comprising:

• a pulse wave sensor configured to measure a plurality of pulse wave signals from an object of the user;
• a position sensor configured to obtain sensor position information identifying a sensor position on the object for each of the plurality of pulse wave signals, based on the pulse wave sensor measuring each of the plurality of pulse wave signals;
• and
• a processor configured to:
• estimate first bio-information at each sensor position based on each of the plurality of pulse wave signals;
• determine one of a plurality of virtual blood vessel positions as a blood vessel position of the object based on the first bio-information at each sensor position;
• and
• estimate second bio-information based on the blood vessel position of the object, each sensor position, and the first bio-information at each sensor position.

A method of estimating bio-information of a user, the method comprising:

• measuring a plurality of pulse wave signals from an object of the user;
• obtaining sensor position information identifying a sensor position on the object for each of the plurality of pulse wave signals, based on a pulse wave sensor measuring each of the plurality of pulse wave signals;
• estimating first bio-information at each sensor position based on each of the plurality of pulse wave signals;
• determining one of a plurality of virtual blood vessel positions as a blood vessel position of the object, based on the first bio-information at each sensor position;
• and
• estimating second bio-information based on the blood vessel position of the object, each sensor position, and the first bio-information at each sensor position.