Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: fixational eye movements

Sortuj według:

Ogranicz wyniki do:

Stable distribution in application to fixational eye movement description

Szmigiel Marta, Grzesiek Aleksandra, Wyłomańska Agnieszka, Kasprzak Henryk

Optica Applicata

2019

Vol. 49, nr 2

365--377

To give an appropriate description of fixational eye movements is a very challenging problem. Over the years authors tried to describe the movements through different methods. The time series of the movements exhibit very characteristic behavior, which is the visible impulses. This may suggest the heavy-tailed distribution behind the data. In this paper on stochastic description of fixational eye movements, the α-stable distribution as the most important member of heavy-tailed family of distributions is proposed. The fixational eye movements together with head movement of both eyes of eight healthy subjects were measured and recorded by use of own designed optical system. Further analysis of changes in position of the pupil center in two-dimensional plane was performed. It was shown that head movement has very small impact on values of stability parameter α of fixational eye movements. The α-stable based analysis can be useful in better understanding of the character of the eye globe dynamics.

Measurement of the fixational eye movements based on observation of the eye pupil kinetics

Szmigiel M.

Interdisciplinary Journal of Engineering Sciences

2014

Vol. 2, no. 1

5--7

The paper presents measurement method of fast eye movement by use of the high-speed CCD camera, with recording rate 200fps. Sequences of the pupil’s images recorded within 10 seconds were next decomposed into frames and processed numerically. The position of the center of eye pupil were used to describe the eyeball movement during fixation. The calculated results allowed to achieve the goal of this paper, that is to characterize the fixational eye movement.