Google unveils Fitbit Edge with ECG, GPS, and a replaceable battery for good measure
Google’s Fitbit Edge brings ECG, GPS, a bright OLED display, and a replaceable battery to a slim fitness tracker priced at $179.99.
Digital Trends — AI1 min read
ECG
3 stories
Teaching PPG How not Who: Fixed-Effects Distillation from ECG
ECG is widely used to teach PPG-only models, yet what it teaches is unexamined. Wearables are valued for tracking how a person's cardiovascular state changes, but ECG-to-PPG distillation mostly learns who the person is.
arXiv cs.LG2 min readOne Frame, Full Heartbeat: ECG-Free 4D Cardiac Cine MRI Synthesis via Radial-Decomposed Flow Matching
Cine cardiovascular magnetic resonance (CMR) captures the cardiac cycle as a four-dimensional (4D) sequence, but standard acquisition requires electrocardiogram (ECG) gating and repeated breath holds.
arXiv - cs.CV (CV)2 min read
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