Osaka Researchers Develop Ultra-Low Power EEG Measurement System
May 26, 2025
University of Osaka develops a high-precision, ultra-energy-efficient EEG system based on waveform similarity and compressed sensing.
Key Details
- New EEG measurement system achieves 72μW total power consumption.
- The approach leverages waveform similarity and compressed sensing instead of black-box generative AI.
- System built using commercially available microcontrollers (nRF52840).
- Demonstrated normalized mean squared error (NMSE) of 0.116 across 500 measurements.
- Targets wearable, long-term monitoring, and self-powered IoT healthcare devices.
Why It Matters
This breakthrough could enable long-duration, battery-efficient or even battery-free bio-signal monitoring in clinical and ambulatory settings. It directly addresses key limitations in wearable brain/computer interfaces, benefiting neuroimaging, patient monitoring, and AI diagnostic device development.