Optimization of illumination schemes in a head-mounted display integrated with eye tracking capabilities

Craig W. Pansing, Hong Hua, Jannick P. Rolland

Research output: Contribution to journalConference article

5 Scopus citations

Abstract

Head-mounted display (HMD) technologies find a variety of applications in the field of 3D virtual and augmented environments, 3D scientific visualization, as well as wearable displays. While most of the current HMDs use head pose to approximate line of sight, we propose to investigate approaches and designs for integrating eye tracking capability into HMDs from a low-level system design perspective and to explore schemes for optimizing system performance. In this paper, we particularly propose to optimize the illumination scheme, which is a critical component in designing an eye tracking-HMD (ET-HMD) integrated system. An optimal design can improve not only eye tracking accuracy, but also robustness. Using LightTools®, we present the simulation of a complete eye illumination and imaging system using an eye model along with multiple near infrared LED (IRLED) illuminators and imaging optics, showing the irradiance variation of the different eye structures. The simulation of dark pupil effects along with multiple lst-order Purkinje images will be presented. A parametric analysis is performed to investigate the relationships between the IRLED configurations and the irradiance distribution at the eye, and a set of optimal configuration parameters is recommended. The analysis will be further refined by actual eye image acquisition and processing.

Original languageEnglish (US)
Article number58750I
Pages (from-to)1-13
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5875
DOIs
StatePublished - Dec 27 2005
EventNovel Optical Systems Design and Optimization VIII - San Diego, CA, United States
Duration: Jul 31 2005Aug 1 2005

Keywords

  • Displays
  • Eye tracking
  • Head-mounted display
  • Illumination
  • Wearable displays

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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