AI RESEARCH
FreqPhys: Repurposing Implicit Physiological Frequency Prior for Robust Remote Photoplethysmography
arXiv CS.CV
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ArXi:2604.00534v1 Announce Type: new Remote photoplethysmography (rPPG) enables contactless physiological monitoring by capturing subtle skin-color variations from facial videos. However, most existing methods predominantly rely on time-domain modeling, making them vulnerable to motion artifacts and illumination fluctuations, where weak physiological clues are easily overwhelmed by noise. To address these challenges, we propose FreqPhys, a frequency-guided rPPG framework that explicitly leverages physiological frequency priors for robust signal recovery.