Influences on rPPG-Based Spatial Blood Perfusion Maps

Recent studies show the feasibility of using local remote photoplethysmography (rPPG) for non-contact blood perfusion assessment by creating spatial pulsatile blood perfusion maps. While global rPPG has been widely studied for its robustness, e.g. for non-contact measurement of heart rate, local ana...

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Bibliographic Details
Published in:Current directions in biomedical engineering 2024-12, Vol.10 (4), p.381-384
Main Authors: Kobel, Svenja Nicola, Wuerich, Carolin, Ernst, Anna Lotta, Fusshoeller, Eva, Grueter, Jan Niclas, Haendler, Jakob, Wiede, Christian, Seidl, Karsten
Format: Article
Language:English
Subjects:
biomedical monitoring
Blood perfusion
contactless
optical
remote photoplethysmography
Online Access:Get full text
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Summary:Recent studies show the feasibility of using local remote photoplethysmography (rPPG) for non-contact blood perfusion assessment by creating spatial pulsatile blood perfusion maps. While global rPPG has been widely studied for its robustness, e.g. for non-contact measurement of heart rate, local analyses pose greater challenges in terms of noise suppression and thus reliability. In this paper, the effect of temperature and illumination changes on signal-to-noise ratio (SNR) perfusion maps is analysed. The results show the importance of consistent temperature and controlled illumination for improving SNR and ensuring reliable blood perfusion measurements using rPPG. This emphasises the need for standardised external conditions for accurate interpretation of the results and medical applicability.
ISSN:2364-5504
2364-5504
DOI:10.1515/cdbme-2024-2093