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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2015 Sep 15;63(3):463–477. doi: 10.1109/TBME.2015.2476337

Fig. 4.

Fig. 4

A schematic setup of an IPPG system which includes a light source and a camera. Physiological information (e.g., heart rate and perfusion) could be then extracted from the obtained images.