Device and method for determining vital signs of a subject

A system for determining a vital sign of a subject comprising:

• an imaging unit configured to detect electromagnetic radiation reflected from a region of interest including a skin area of the subject to obtain a data stream, said data stream comprising a data signal per skin pixel area of one or more skin pixels for a plurality of skin pixel areas of said region of interest, a data signal representing the detected electromagnetic radiation reflected from the respective skin pixel area over time, and
• a device configured to receive said data stream and for determining a vital sign of a subject from said data stream.

A processor for processing a received data stream derived from detected electromagnetic radiation reflected from a region of interest including a skin area of a subject, said processor being configured to:

• receive said data stream comprising a data signal per skin pixel area of one or more skin pixels for a plurality of skin pixel areas of said region of interest, a data signal representing the detected electromagnetic radiation reflected from the respective skin pixel area over time,
• analyze spatial and/or optical properties of one or more data signals in one or more wavelength ranges, and
• determine a vital sign information signal of the subject based on the data signals of skin pixel areas within the skin area, wherein said determined spatial and/or optical properties are used for determining the vital sign information signal.