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Non-contact PPG Signal and Heart Rate Estimation with Multi-hierarchical Convolutional Network. (arXiv:2104.02260v2 [cs.CV] UPDATED)
cs.CV updates on arXiv.org arxiv.org
Heartbeat rhythm and heart rate (HR) are important physiological parameters
of the human body. This study presents an efficient multi-hierarchical
spatio-temporal convolutional network that can quickly estimate remote
physiological (rPPG) signal and HR from face video clips. First, the facial
color distribution characteristics are extracted using a low-level face feature
generation (LFFG) module. Then, the three-dimensional (3D) spatio-temporal
stack convolution module (STSC) and multi-hierarchical feature fusion module
(MHFF) are used to strengthen the spatio-temporal correlation of multi-channel
features. In the …
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