Unverified50% confidenceFactExact time
远程光电容积脉搏波技术（rPPG）通过分析视频中人脸区域像素强度时序变化提取心率信号，真实人脸的皮肤光反射率变化幅度在0.1%至1%之间
1
Sources
50%
Confidence
Long-term
Relevance
7/18/2026
First Seen
Sources
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