| Motion-compensated noncontact imaging photoplethysmography to monitor cardiorespiratory status during exercise. | |
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MedLine Citation:
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PMID: 21806290 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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With the advance of computer and photonics technology, imaging photoplethysmography [(PPG), iPPG] can provide comfortable and comprehensive assessment over a wide range of anatomical locations. However, motion artifact is a major drawback in current iPPG systems, particularly in the context of clinical assessment. To overcome this issue, a new artifact-reduction method consisting of planar motion compensation and blind source separation is introduced in this study. The performance of the iPPG system was evaluated through the measurement of cardiac pulse in the hand from 12 subjects before and after 5 min of cycling exercise. Also, a 12-min continuous recording protocol consisting of repeated exercises was taken from a single volunteer. The physiological parameters (i.e., heart rate, respiration rate), derived from the images captured by the iPPG system, exhibit functional characteristics comparable to conventional contact PPG sensors. Continuous recordings from the iPPG system reveal that heart and respiration rates can be successfully tracked with the artifact reduction method even in high-intensity physical exercise situations. The outcome from this study thereby leads to a new avenue for noncontact sensing of vital signs and remote physiological assessment, with clear applications in triage and sports training. |
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Authors:
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Yu Sun; Sijung Hu; Vicente Azorin-Peris; Stephen Greenwald; Jonathon Chambers; Yisheng Zhu |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of biomedical optics Volume: 16 ISSN: 1560-2281 ISO Abbreviation: J Biomed Opt Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-08-02 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9605853 Medline TA: J Biomed Opt Country: United States |
Other Details:
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Languages: eng Pagination: 077010 Citation Subset: IM |
Affiliation:
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Loughborough University, Department of Electronic and Electrical Engineering, Loughborough, Leicestershire, LE11 3TU, United KingdomShanghai Jiao Tong University, Department of Biomedical Engineering, Shanghai, 200240, ChinaBarts & The London School of Medicine & Dentistry, Institute of Cell & Molecular Science, London, E1 2ES, United Kingdom. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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