This paper presents a minimally intrusive real-time gaze-tracking prototype to be used in several scenarios, including a laboratory stall and an in-vehicle system. The system requires specific infrared illumination to allow it to work with variable light conditions. However, it is minimally intrusive due to the use of a carefully configured switched infrared LED array. Although the perceived level of illumination generated by this array is high, it is achieved using low-emission infrared light beams. Accuracy is achieved through a precise estimate of the center of the user's pupil. To overcome inherent time restrictions while using low-cost processors, its main image-processing algorithm has been distributed over four main computing tasks. This structure not only enables good performance, but also simplifies the task of experimenting with alternative computationally-complex algorithms and with alternative tracking models based on locating both user eyes and several cameras to improve user mobility.
Publié le : 2015-02-10
Classification:
Eye-tracking, cluster computing, real time distributed applications, parallel image processing, MPI, embedded systems
@article{cai724,
author = {Antonio Garc\'\i a Dopico; Departamento de Arquitectura y Tecnolog\'\i a de Sistemas Inform\'aticos, Facultad de Inform\'atica, Universidad Polit\'ecnica de Madrid, E-28660, Boadilla del Monte, Madrid and Jos\'e L. Pedraza; Departamento de Arquitectura y Tecnolog\'\i a de Sistemas Inform\'aticos, Facultad de Inform\'atica, Universidad Polit\'ecnica de Madrid, E-28660, Boadilla del Monte, Madrid and M. Luisa C\'ordoba; Departamento de Arquitectura y Tecnolog\'\i a de Sistemas Inform\'aticos, Facultad de Inform\'atica, Universidad Polit\'ecnica de Madrid, E-28660, Boadilla del Monte, Madrid and Francisco M. S\'anchez; Departamento de Arquitectura y Tecnolog\'\i a de Sistemas Inform\'aticos, Facultad de Inform\'atica, Universidad Polit\'ecnica de Madrid, E-28660, Boadilla del Monte, Madrid and Antonio P\'erez; Departamento de Arquitectura y Tecnolog\'\i a de Sistemas Inform\'aticos, Facultad de Inform\'atica, Universidad Polit\'ecnica de Madrid, E-28660, Boadilla del Monte, Madrid},
title = {Distributed Real-Time Computation of the Point of Gaze},
journal = {Computing and Informatics},
volume = {33},
number = {3},
year = {2015},
language = {en},
url = {http://dml.mathdoc.fr/item/cai724}
}
Antonio García Dopico; Departamento de Arquitectura y Tecnología de Sistemas Informáticos, Facultad de Informática, Universidad Politécnica de Madrid, E-28660, Boadilla del Monte, Madrid; José L. Pedraza; Departamento de Arquitectura y Tecnología de Sistemas Informáticos, Facultad de Informática, Universidad Politécnica de Madrid, E-28660, Boadilla del Monte, Madrid; M. Luisa Córdoba; Departamento de Arquitectura y Tecnología de Sistemas Informáticos, Facultad de Informática, Universidad Politécnica de Madrid, E-28660, Boadilla del Monte, Madrid; Francisco M. Sánchez; Departamento de Arquitectura y Tecnología de Sistemas Informáticos, Facultad de Informática, Universidad Politécnica de Madrid, E-28660, Boadilla del Monte, Madrid; Antonio Pérez; Departamento de Arquitectura y Tecnología de Sistemas Informáticos, Facultad de Informática, Universidad Politécnica de Madrid, E-28660, Boadilla del Monte, Madrid. Distributed Real-Time Computation of the Point of Gaze. Computing and Informatics, Tome 33 (2015) no. 3, . http://gdmltest.u-ga.fr/item/cai724/