or search for eye drops to find more stock footage and b-roll video clips. SLOW MOTION CLOSE UP: Brown eye flinches and blinks after eye... SLOW MOTION CLOSE UP: Brown eye flinches and blinks after ...

A blink is detected when the EAR drops below a certain threshold, indicating a closed eye. --> Blink duration and time intervals between blinks are measured to interpret them as dots, dashes, and ...