Vibrosight: Long-Range Vibrometry for Smart Environment Sensing
summary
Vibrosight uses a steerable mirror, a red laser and a PIN photodiode to read vibrations off retro-reflective tags placed on objects, sensing reliably up to 16 meters with a 5 kHz sample rate. A round‑robin scanner collects 0.5–3s of vibration per tag and achieves 98.4% object-usage detection and 92.1% object recognition in trials; it also detects knocks, typing, and human movement. Limitations include required line of sight and slower refresh with many tags.
AI-written summary · about
chapters (12)
- 0:00Introduction to Vibrosight
- 1:55Sensing principles and goals
- 3:43Retroreflective tags and steerable mirror
- 5:11Environmental lighting and noise tests
- 6:15Demo attempt and system setup
- 8:16Sensor hardware implementation
- 9:19System operation and real-time demo
- 10:22Evaluation study and accuracy results
- 12:08Sampling duration and object recognition
- 12:53Supplemental applications of Vibrosight
- 14:01Limitations and future work
- 14:43Open source and Q&A
related talks
22mExtracting Gait Velocity and Stride Length from Surrounding Radio Signals
06mDropMonitor: Millimeter-level Sensing for RFID-based Infusion Drip Rate Monitoring
06mIdentifying Contact Fingers on Touch Sensitive Surfaces by Ring-Based Vibratory Communication
23mFood and Liquid Sensing in Practical Environments using RFIDs
06mV2iFi: in-Vehicle Vital Sign Monitoring via Compact RF Sensing
13mAcustico: Surface Tap Detection and Localization using Wrist-based Acoustic TDOA Sensing
12mMAVL: Multiresolution Analysis of Voice Localization
21mViBand: High-Fidelity Bio-Acoustic Sensing Using Commodity Smartwatch Accelerometers