An Exploratory Study of Biometrics Using Eye Movement Trajectory Images Collected by Natural Image Stimuli
Abstract
The study of eye movements as biometrics began in 2004 and its typical process is to capture movements using stimulus images, treating these data as signals in time followed by classification. The general objective of this work is to evaluate the use of eye movements as biometrics, by using the images of the eye movements of 29 volunteers, with the use of natural images as a stimulus, This work proposes two differentials, one is the use of the DOVES database of eye movements collected using natural images as a stimulus, and the other is the treatment of eye movements as images. Images of the eye movement trajectories are generated, which are the input of the HOG and LBP techniques for extracting characteristics, followed by the SVM, MLP, and random forest classifiers. The highest accuracy was 33.3% with the combination of the HOG and MLP techniques, a result comparable with the best of EMVIC 2014 competition, which used face images as a stimulus, of 39.6%.
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