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Frontiers | Accurate detection of heart rate using in-ear photoplethysmography in a clinical setting
The in-ear eeg sensor. Notes: (A) The hardware of the in-ear eeg and... | Download Scientific Diagram
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Figure 2 from Photoplethysmography-based in-ear sensor system for identification of increased stress arousal in everyday life | Semantic Scholar
![Patient with reflective PPG sensor which is sealed into an individually... | Download Scientific Diagram Patient with reflective PPG sensor which is sealed into an individually... | Download Scientific Diagram](https://www.researchgate.net/publication/264580953/figure/fig2/AS:306482932404227@1450082633946/Patient-with-reflective-PPG-sensor-which-is-sealed-into-an-individually-customized-ear.png)
Patient with reflective PPG sensor which is sealed into an individually... | Download Scientific Diagram
The in-ear sensor used in our study. Left: Wearable in-ear sensor with... | Download Scientific Diagram
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