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Fig. 6 | BioMedical Engineering OnLine

Fig. 6

From: Initial evaluation of prospective cardiac triggering using photoplethysmography signals recorded with a video camera compared to pulse oximetry and electrocardiography at 7T MRI

Fig. 6

Real vPPG signal recorded using the MRI-compatible camera and synthetic vPPG signal with the same noise characteristics. a Shows a complete vPPG signal obtained from a video recorded during the first stage of the measurement protocol. b Shows a synthetic vPPG signal computed from RR intervals from the ECG database with VLF, LF, and HF noise estimated from the signal shown in a. The last 10 s of signals a and b are shown in c and d, respectively

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BioMedical Engineering OnLine

ISSN: 1475-925X

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