Title :
An adaptive calibration of an infrared light device used for gaze tracking
Author :
Cherif, Z. Ramdane ; Naït-Ali, A. ; Motsch, J.F. ; Krebs, M.O.
Author_Institution :
INSERM, Service Hospitalo-Univ., Paris, France
fDate :
6/24/1905 12:00:00 AM
Abstract :
In this study, the measurement of gaze position is used to indicate the areas that attract the subject´s attention in an image. An infrared light device is used to provide the horizontal and vertical eye movement. The calibration procedure is studied to perform the mapping between equipment coordinates and the image coordinates. A polynomial transformation of higher order is used to model this mapping by using a mean square error criterion. The method developed here allows an adaptive correction of the measured gaze positon according to user´s characteristics.
Keywords :
bio-optics; biomedical equipment; biomedical measurement; calibration; eye; infrared detectors; mean square error methods; motion measurement; optical tracking; polynomial approximation; position measurement; visual perception; IRIS system; adaptive calibration; equipment coordinates; eye movement tracking; fixation clusters detection; gaze position measurement; gaze tracking; horizontal eye movement; image coordinates; image to screen mapping; infrared light device; mean square error criterion; polynomial transformation; vertical eye movement; visual attention; visual exploration; Calibration; Hardware; Image analysis; Instruments; Magnetic heads; Monitoring; Noise measurement; Performance analysis; Polynomials; Position measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE
Print_ISBN :
0-7803-7218-2
DOI :
10.1109/IMTC.2002.1007096
