~/talk

Invisibility Cloak: Personalized Smartwatch-Guided Camera Obfuscation

Talkat UIST 2025 · 2025-09-28..10-01· [privacy-and-compliance]
name:Xue Wang
links:none on file
linkedin:yzhang
slides:none on file

System links smartwatch IMU signals to on-camera motion to remove a person’s pixels at the edge before streaming to cloud services, using a contrastive embedding that aligns 2‑second IMU windows with short video motion tracks and then assigns devices to people for per-person obfuscation. The pipeline reports 95.48% accuracy among 10 users with 2 seconds of data and relies on a contrastive embedding plus local edge processing to apply configurable obfuscation levels.

AI-written summary · about

  1. 0:00Introduction to Invisibility Cloak
  2. 1:09Privacy challenges in vision AI
  3. 2:11Limitations of existing approaches
  4. 2:56Invisibility Cloak system overview
  5. 3:37Motion-based user association
  6. 4:42Contrastive learning pipeline
  7. 7:28Device association with Hungarian algorithm
  8. 8:10Data collection and synthesis
  9. 9:34Evaluation and results
  10. 10:15Limitations and future work
  11. 10:37Q&A session
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