μDPad Turns Smartwatch Heart Sensors into Gesture Imagers

μDPad repurposes a smartwatch's multi-channel PPG optical heart-rate sensor as a spatial imager, fusing 8 photodiode signals with IMU data to detect micro-gestures without a camera. ETH Zürich also released a dataset with 25 hours of synchronized IMU+PPG signals from 66 participants.

2026-10-06 ~ 2026-10-06 · 3 related posts

• μDPad turns smartwatch PPG heart-rate sensors into a micro-gesture imaging array — cholz · 2026-10-06
• μDPad turns a smartwatch's optical HR sensor into a microgesture detector, no cameras needed — cholz · 2026-10-06
• ETH Zürich releases 25-hour IMU+PPG microgesture dataset from 66 participants — cholz · 2026-10-06