Τίτλος:
Automatic identification of eye movements using the largest lyapunov exponent
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The study of eye movements has been increasing over the past decade. It is considered that eye movements, mainly saccades and blinks, provide significant information for cognitive and visual processes of the observers. Saccades and blinks are high velocity eye movements. In this paper, the automatic identification of saccades and blinks, as well as their onset and offset, is proposed based on a novel implementation of nonlinear dynamics using the Largest Lyapunov Exponent and the logarithm of the divergence. The Largest Lyapunov Exponent detection method was tested on 25,000 saccades and 2,366 blinks, detecting with high accuracy and precision both types of eye movements. The Largest Lyapunov Exponent detection method was compared against two other existing techniques for blink and saccade identification, showing advantageous performance. © 2017 Elsevier Ltd
Συγγραφείς:
Korda, A.I.
Asvestas, P.A.
Matsopoulos, G.K.
Ventouras, E.M.
Smyrnis, N.
Περιοδικό:
Biomedical Signal Processing and Control
Εκδότης:
Elsevier Ireland Ltd
Λέξεις-κλειδιά:
Automatic identification; Differential equations; Lyapunov functions; Lyapunov methods; Nitrogen fixation, Blink; Detection methods; High velocity; High-accuracy; Largest Lyapunov exponent; Logarithm of the divergence; Non-linear dynamics; Visual process, Eye movements, adult; algorithm; Article; autoanalysis; eyelid reflex; human; human experiment; male; measurement accuracy; nonlinear system; normal human; priority journal; saccadic eye movement; young adult
DOI:
10.1016/j.bspc.2017.11.004
