4 August 2026
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Liselotte Stolk
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Speckle Plethysmography for Low-Perfusion Sensing: Insights from Foot Measurements
Summary Photoplethysmography (PPG) is the optical sensing technology behind almost every wearable vital-sign sensor, but its light-absorption principle depends on…
19 December 2024
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Liselotte Stolk
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Novel ALIS™ Blood Flow index for improved health monitoring
Summary Non-invasive technologies in wearable health devices have become increasingly important due to the rising demand for remote health monitoring…