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My Own Private Kiosk: Privacy-Preserving Public Displays

My Own Private Kiosk: Privacy-Preserving Public Displays. Marc Eaddy † G á bor Blask ó † Jason Babcock ‡ Steven Feiner †. † Columbia University ‡ Rochester Institute of Technology. Overview. EyeGuide 3D eye tracking Eye as input. Public/private displays. EyeGuide. Input. Output.

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My Own Private Kiosk: Privacy-Preserving Public Displays

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  1. My Own Private Kiosk:Privacy-Preserving Public Displays Marc Eaddy† Gábor Blaskó† Jason Babcock‡ Steven Feiner† †Columbia University ‡Rochester Institute of Technology

  2. Overview • EyeGuide • 3D eye tracking • Eye as input

  3. Public/private displays EyeGuide Input Output

  4. EyeGuide Head Tracker • Eye tracker • Head tracker • Earphone (for privacy) Scene Camera Earphone Eye Camera

  5. Scenario • Subway map (public display) • Lost user • Nefarious straphangers • EyeGuide “steers” the user’s gaze tolocations on themap using whispered verbal cues

  6. Contributions • Introduces private “gaze steering” • 2D: Maps, Paintings • 3D: Sculpture, “Secret Agent Man” • Lightweight eye- and head-tracking headgear Head Tracker Scene Camera Earphone Eye Camera

  7. 3D Eye Tracking • 3D Model Head World Eye/Camera Scene (Map)

  8. 3D Eye Tracking Accuracy • Calibration errors (more points, remove outliers) • Eye tracker errors (smoothing) • Head tracker errors (smoothing) Eye-in-Head Projection Eye Plane

  9. 3D Calibration • Original calibration method • 9 points, fixed head position • 27 points, different head positions • New calibration method (Mulligan) • Fixate on single point • While moving head back and forth (and up and down) • Vestibuloocular Reflex (VOR) • Allows us to get 100s of points • More user friendly

  10. Eye as real-time 3D input device? • Passive • Gaze contingent displays (EyeGuide) • Head pose often sufficient • When is the finer level of granularity (below 30º) needed? • Active • Eye as controller • Fitts’ Law applied to AR/VR • Eye can point, select, and move faster than mouse (in some situations)

  11. Acknowledgements Funded in part by the Office of Naval Research and gifts from IBM and Microsoft.

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