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LightAnchors: Appropriating Point Lights for Spatially-Anchored Augmented Reality Interfaces

on YouTube 17m
Talkat UIST 2019 · 2019-10-20..10-23· [iot]

speakers

name:Karan Ahuja
links:none on file
name:Sujeath Pareddy
links:none on file
name:Robert Xiao
links:none on file
name:Mayank Goel
links:none on file
name:Chris Harrison
links:none on file

resources

video:https://youtu.be/mf2fy-Om23g
slides:none on file

summary

System uses existing point lights (LEDs, bulbs) to both anchor AR overlays and send data by high-speed blinking; a software-only iOS app and Arduino starter code decode these pulses using a pyramid + max-pooling detector and temporal preamble check. Evaluation on iPhones at 120 fps (iPhone 7/10 experiments) across 2–12 m with 3 mm and 100×100 mm LEDs shows 99.6% true positive rate, 5.2% mean bit error rate, ~0.46 s mean recognition, 32-bit decodes in ~0.25 s, and eleven working demos plus open-source code.

AI-written summary · about

chapters (5)

  1. 0:00Introduction
  2. 4:37Implementation
  3. 8:22Evaluation
  4. 10:57Use Cases
  5. 13:04Questions

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