title: Motion robust PPG-imaging through color channel mapping.
abstract: Photoplethysmography (PPG)-imaging is an emerging noninvasive technique that maps spatial blood-volume variations in living tissue with a video camera. In this paper, we clarify how cardiac-related (i.e., ballistocardiographic; BCG) artifacts occur in this imaging modality and address these using algorithms from the remote-PPG literature. Performance is assessed under stationary conditions at the immobilized hand. Our proposal outperforms the state-of-the-art, blood pulsation imaging [Biomed. Opt. Express5, 3123 (2014). ], even in our best attempt to create diffused illumination. BCG-artifacts are suppressed to an order of magnitude below PPG-signal strength, which is sufficient to prevent interpretation errors.
authors.affiliation: Electronic Systems Group, Eindhoven University of Technology, Eindhoven, The Netherlands.
authors.forename: Andreia V
authors.initials: AV
authors.lastname: Moço
authors.affiliation: Electronic Systems Group, Eindhoven University of Technology, Eindhoven, The Netherlands.
authors.forename: Sander
authors.initials: S
authors.lastname: Stuijk
authors.affiliation: Philips Innovation Group, Philips Research, Eindhoven, The Netherlands.
authors.forename: Gerard
authors.initials: G
authors.lastname: de Haan
keywords: (030.4280) Noise in imaging systems; (170.3880) Medical and biological imaging