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Limbus/pupil switching for wearable eye tracking under variable lighting conditions

Published: 26 March 2008 Publication History

Abstract

We present a low-cost wearable eye tracker built from off-the-shelf components. Based on the open source openEyes project (the only other similar effort that we are aware of), our eye tracker operates in the visible spectrum and variable lighting conditions. The novelty of our approach rests in automatically switching between tracking the pupil/iris boundary in bright light to tracking the iris/sclera boundary (limbus) in dim light. Additional improvements include a semi-automatic procedure for calibrating the eye and scene cameras, as well as an automatic procedure for initializing the location of the pupil in the first image frame. The system is accurate to two degrees visual angle in both indoor and outdoor environments.

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cover image ACM Conferences
ETRA '08: Proceedings of the 2008 symposium on Eye tracking research & applications
March 2008
285 pages
ISBN:9781595939821
DOI:10.1145/1344471
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 26 March 2008

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  1. limbus tracking
  2. wearable eye tracking

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ETRA '08
ETRA '08: Eye Tracking Research and Applications
March 26 - 28, 2008
Georgia, Savannah

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Overall Acceptance Rate 69 of 137 submissions, 50%

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