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iPhys: An Open Non-Contact Imaging-Based Physiological Measurement Toolbox.

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    This study introduces an open-source toolbox for non-contact physiological measurements using imaging techniques. It aims to advance research in imaging photoplethysmography and ballistocardiography by providing accessible computational methods.

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    Area of Science:

    • Biomedical Engineering
    • Computer Vision
    • Physiological Monitoring

    Background:

    • Imaging-based physiological measurement, including imaging photoplethysmography (iPPG) and imaging ballistocardiography (iBCG), is an emerging research area.
    • Contact-based sensors can be uncomfortable and limit measurement capabilities.
    • Cameras offer a ubiquitous, low-cost sensing solution for physiological monitoring.

    Purpose of the Study:

    • To present an open-source toolbox for imaging-based physiological measurement.
    • To provide implementations of frequently used computational methods in the field.
    • To facilitate research and development in non-contact physiological sensing.

    Main Methods:

    • Development of an open-source software toolbox.
    • Implementation of established computational algorithms for iPPG and iBCG.
    • Utilizing camera-based imaging for physiological signal acquisition.

    Main Results:

    • A comprehensive toolbox with multiple computational methods for imaging-based physiological sensing is now available.
    • The toolbox enables researchers to compare new approaches against state-of-the-art implementations.
    • Facilitates spatial and simultaneous physiological measurements.

    Conclusions:

    • The developed open-source toolbox supports the advancement of non-contact physiological sensing.
    • It democratizes access to advanced computational methods for researchers.
    • Promotes further innovation in imaging-based physiological monitoring.