All Stories

  1. Head and Body Pose Estimation using Ultrasound Sensing on Smart Glasses

    Article • April 2026, ACM (Association for Computing Machinery)

    Ke Li

  2. SonicID: User Identification on Smart Glasses with Acoustic Sensing

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, November 2024, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang

  3. Ring-a-Pose: A Ring for Continuous Hand Pose Tracking

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, November 2024, ACM (Association for Computing Machinery)

    Chi-Jung Lee, Ke Li, Cheng Zhang

  4. ActSonic: Recognizing Everyday Activities from Inaudible Acoustic Wave Around the Body

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, November 2024, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang

  5. EchoGuide: Active Acoustic Guidance for LLM-Based Eating Event Analysis from Egocentric Videos

    Article • October 2024, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang

  6. GazeTrak: Exploring Acoustic-based Eye Tracking on a Glass Frame

    Article • May 2024, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang

  7. EchoWrist: Continuous Hand Pose Tracking and Hand-Object Interaction Recognition Using Low-Power Active Acoustic Sensing On a Wristband

    Article • May 2024, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang, Chi-Jung Lee, Boao Dong

  8. EyeEcho: Continuous and Low-power Facial Expression Tracking on Glasses

    Article • May 2024, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang

  9. EchoNose: Sensing Mouth, Breathing and Tongue Gestures inside Oral Cavity using a Non-contact Nose Interface

    Article • October 2023, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang, Sam Tilsen, Rujia Sun, Shengzhang Wu

  10. HPSpeech: Silent Speech Interface for Commodity Headphones

    Article • October 2023, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang

  11. PoseSonic

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, September 2023, ACM (Association for Computing Machinery)

    Cheng Zhang, Ke Li

  12. Locating Everyday Objects Using NFC Textiles

    Article • Communications of the ACM, September 2023, ACM (Association for Computing Machinery)

    Jingxian Wang, Ke Li

  13. EchoSpeech: Continuous Silent Speech Recognition on Minimally-obtrusive Eyewear Powered by Acoustic Sensing

    Article • April 2023, ACM (Association for Computing Machinery)

    Cheng Zhang, Ke Li

  14. EarIO

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, July 2022, ACM (Association for Computing Machinery)

    Ke Li, Cheng Zhang

  15. Locating Everyday Objects using NFC Textiles

    Article • May 2021, ACM (Association for Computing Machinery)

    Ke Li

  16. A Constant Factor Approximation for $d$ -Hop Connected Dominating Set in Three-Dimensional Wireless Networks

    Article • IEEE Transactions on Wireless Communications, September 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Ke Li

  17. QLEC

    Article • August 2019, ACM (Association for Computing Machinery)

    Ke Li