System and method for obtaining vital sign related information of a living being

A method for obtaining vital sign information of a living being, comprising:

• receiving an input signal generated from light received in at least one wavelength interval reflected from a skin region of a living being, said input signal representing vital sign related information from which a vital sign of the living being can be derived;
• processing said input signal and deriving vital sign information of said living being from said input signal;
• estimating the orientation of said skin region by:
• processing distance data;
• and
• determining a 3D model of the skin surface including said skin region from said distance data;
• and
• controlling illumination of said skin region with light based on said estimated orientation of said skin region and/or said processing to derive vital sign related information from said input signal obtained during time intervals selected based on the estimated orientation of said skin region.

A system for obtaining vital sign related information of a living being, said system comprising a processor configured to carry out the steps of:

• receiving an input signal generated from light received in at least one wavelength interval reflected from a skin region of a living being, said input signal representing vital sign related information from which a vital sign of the living being can be derived;
• processing said input signal and deriving vital sign information of said living being from said input signal;
• estimating the orientation of said skin region by:
• processing distance data;
• and
• determining a 3D model of the skin surface including said skin region from said distance data;
• and
• controlling illumination of said skin region with light based on said estimated orientation of said skin region and/or said processing to derive vital sign related information from said input signal obtained during time intervals selected based on the estimated orientation of said skin region.