Living-skin classification via remote-PPG

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Detecting living-skin tissue in a video on the basis of induced color changes due to blood pulsation is emerging for automatic region of interest localization in remote photoplethysmography (rPPG). However, the state-of-the-art method performing unsupervised living-skin detection in a video is rather time-consuming, which is mainly due to the high complexity of its unsupervised on-line learning for pulse/noise separation. In this paper, we address this issue by proposing a fast living-skin classification method. Our basic idea is to transform the time-variant rPPG-signals into signal shape descriptors called “Multi-resolution Iterative Spectrum” (MIS), where pulse and noise have different patterns enabling accurate binary classification. The proposed technique is a proof-of-concept that has only been validated in lab conditions but not in real clinical conditions. The benchmark, including synthetic and realistic (non-clinical) experiments, shows that it achieves a high detection accuracy better than the state-of-the-art method, and a high detection speed at hundreds of frames per second in Matlab, enabling real-time living-skin detection.
Originele taal-2Engels
Pagina's (van-tot)2781-2792
Aantal pagina's12
TijdschriftIEEE Transactions on Biomedical Engineering
Nummer van het tijdschrift12
StatusGepubliceerd - dec 2017


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