@InProceedings{CoutinhoMori:2006:FrHeMo,
author = "Coutinho, Fl{\'a}vio Luiz and Morimoto, Carlos Hitoshi",
affiliation = "{Instituto de Matem{\'a}tica e Estat{\'{\i}}stica -
Universidade de S{\~a}o Paulo} and {Instituto de Matem{\'a}tica
e Estat{\'{\i}}stica - Universidade de S{\~a}o Paulo}",
title = "Free head motion eye gaze tracking using a single camera and
multiple light sources",
booktitle = "Proceedings...",
year = "2006",
editor = "Oliveira Neto, Manuel Menezes de and Carceroni, Rodrigo Lima",
organization = "Brazilian Symposium on Computer Graphics and Image Processing, 19.
(SIBGRAPI)",
publisher = "IEEE Computer Society",
address = "Los Alamitos",
keywords = "remote eye tracking, gaze tracking, free head motion.",
abstract = "One of the main limitations of current remote eye gaze tracking
(REGT) techniques is that the user's head must remain within a
very limited area in front of the monitor screen. In this paper we
present a free head motion REGT technique. By projecting a known
rectangular pattern of lights, the technique estimates the gaze
position relative to this rectangle using an invariant property of
projective geometry. We carry extensive analysis of similar
methods using an eye model to compare their accuracy. Based on
these results, we propose a new estimation procedure that
compensates the angular difference between the eye visual axis and
optical axis. We have developed a real time (30 fps) prototype
using a single camera and 5 light sources to generate the light
pattern. Experimental results shows that the accuracy of the
system is about 1 degree of visual angle.",
conference-location = "Manaus, AM, Brazil",
conference-year = "8-11 Oct. 2006",
doi = "10.1109/SIBGRAPI.2006.21",
url = "http://dx.doi.org/10.1109/SIBGRAPI.2006.21",
language = "en",
ibi = "6qtX3pFwXQZG2LgkFdY/LPozT",
url = "http://urlib.net/ibi/6qtX3pFwXQZG2LgkFdY/LPozT",
targetfile = "fcoutinho-FreeHeadMotionEyeTracking.pdf",
urlaccessdate = "2025, Feb. 10"
}