Photoplethysmography (PPG) anti-artifact algorithm: Noise filtering performance measurement under intense typing and high-dynamic scenes in daily life
When the smart ring is worn for a long time, high-frequency micro-movements caused by typing, washing hands, and holding the steering wheel are the culprits that cause data to be scrapped during the day. The EIP algorithm laboratory mounts a variety of international market rings on high-end vibration simulation brackets. Actual measurements show that the second-generation algorithm architecture using the new Kalman Filtering and three-axis accelerometer linkage correction can perfectly eliminate more than 92% of daily cluttered micro-movement illusion signals, ensuring pure extraction of resting heart rate.
Source: Euro International Press
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