Blinking is a phenomenon that maintains eye moisture and prevents it from drying out. If blinking is not at its normal rate it results in an eye disease namely dry eye syndrome, which causes redness and irritation in eyes. People especially in IT sector are more prone to this disease since they spend most of the time looking at the monitors which reduces the blink rate. Hence this disorder is also called as computer vision syndrome. Eye blink detection can help in preventing this disorder. The paper aims at presenting the overview of various eye blink detection techniques.
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blink detection, eye anatomy, electrooculography, Gabor filter.