Study of polynomial mapping functions in video-oculography eye trackers


Journal Article

Gaze-tracking data have been used successfully in the design of new input devices and as an observational technique in usability studies. Polynomial-based Video-Oculography (VOG) systems are one of the most attractive gaze estimation methods thanks to their simplicity and ease of implementation. Although the functionality of these systems is generally acceptable, there has been no thorough comparative study to date of how themapping equations affect the final system response. After developing a taxonomic classification of calibration functions, we examined over 400,000 models and evaluated the validity of several conventional assumptions. Our rigorous experimental procedure enabled us to optimize the calibration process for a real VOG gaze-tracking system and halve the calibration time while avoiding a detrimental effect on the accuracy or tolerance to head movement. Finally, a geometry-based method is implemented and tested. The results and performance is compared with those obtained by the general purpose expressions. © 2012 ACM.

Full Text

Duke Authors

Cited Authors

  • Cerrolaza, JJ; Villanueva, A; Cabeza, R

Published Date

  • July 1, 2012

Published In

Volume / Issue

  • 19 / 2

Electronic International Standard Serial Number (EISSN)

  • 1557-7325

International Standard Serial Number (ISSN)

  • 1073-0516

Digital Object Identifier (DOI)

  • 10.1145/2240156.2240158

Citation Source

  • Scopus