Gaze and blinking base human machine interaction system

Abstract

This work present new approach eye tracking with very less expensive IR sensor & IR led based apparatus connected to the computer. Photodiode & phototransistor are light reflection based component, the system design by use these components can be called as light reflection based system or non-imaging sensor base system. Basically this system is having very low complexity & very low computational approach. The infrared light sensitive apparatus is eye mounted spectacle, is used to measure the different voltages reflected from iris for the computation of cursor position in the computer screen. For the accurate position of cursor highly efficient microcontroller based hardware system is used, which is accurately sample time varying signal & digitized in digital. Based on the movement of predefined eye wings the system is able to perform left click, right click and double click with perfect accuracy on computer system. As it is Infrared light based system the computational approach is very low as compared to video or camera based system, so the physical size of system is very small and manufacturing cost of system is also very less.