AuraRing: Precise Electromagnetic Finger Tracking
summary
A wearable system consisting of a battery-powered ring (800 wire turns, 2.3 mW) and a wristband with three tri-axial sensor coils estimates five-DOF ring pose in real time using a magnetic dipole model plus a non-linear optimizer and an alternate closed-form neural approach; factory calibration uses optical motion-capture with IR markers. Evaluation with 14 participants reports 0.1 mm resolution and 4.4 mm dynamic accuracy, supports tap/flick detection and drawing, and requires no runtime supervised training.
AI-written summary · about
chapters (6)
- 0:00Introduction and motivation
- 0:55System design overview
- 1:41Electromagnetic tracking
- 3:11Calibration process
- 4:25Evaluation and results
- 5:07Interaction and conclusion
related talks
11mWrist2Finger: Sensing Fingertip Force for Force-Aware Hand Interaction with a Ring-Watch Wearable
19mTRing: Instant and Customizable Interactions with Objects Using an Embedded Magnet and a ...
04mDualRing: Enabling Subtle and Expressive Hand Interaction with Dual IMU Rings
09mRotoWrist: Continuous Infrared Wrist Angle Tracking using a Wristband
18mFinexus: Tracking Precise Motions of Multiple Fingertips Using Magnetic Sensing
20mSkinTrack: Using the Body as an Electrical Waveguide for Continuous Finger Tracking on the Skin
06mIdentifying Contact Fingers on Touch Sensitive Surfaces by Ring-Based Vibratory Communication
17mAccurate and Low-Latency Sensing of Touch Contact on Any Surface with Finger-Worn IMU Sensor