Determination of eye movements from pupil tracking

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Title: Determination of eye movements from pupil tracking
Authors: Roig Hernández, Ana Belén | Espinosa, Julián | Pérez Rodríguez, Jorge | Mas, David | Vázquez Ferri, Carmen | Domenech, Begoña | Hernández Poveda, Consuelo | Miret, Juan Jose | Illueca Contri, Carlos
Research Group/s: Óptica y Ciencias de la Visión
Center, Department or Service: Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Keywords: Eye movements | Pupil tracking
Knowledge Area: Óptica
Date Created: Nov-2010
Issue Date: 10-Nov-2010
Abstract: The human eye is constantly moving even when it is maintaining a stable fixation point. Stable images on the retina rapidly saturate the photoreceptors and fade. The visual system needs of constant stimulation to which it adapts. These constant changes are achieved by fixation micromovements consisting of microtremors, drifts and microsaccades. Thus, accurate determination of pupil center is useful for precise eye tracking. We present a technique for pupil segmentation and contour analysis which will provide valuable information about fixational eye movements. The method is based on fitting an ellipse to the pupil contour. Pupillary hippus, microsaccades and drifts are obtained, as well cyclotorsions.
Description: Póster presentado en las XIV Jornadas de Investigación Departamental "San Alberto Magno", Alicante, 8-12 noviembre 2010.
Language: eng
Type: info:eu-repo/semantics/conferenceObject
Peer Review: no
Appears in Collections:INV - IMAOS+V - Comunicaciones a Congresos, Conferencias, etc.

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