Human eye characteristics in IR-based eye detection

Nowadays, IR-based (IR means infrared) eye detection technology is widely used. However, many previous work on IR-based eye detection only focuses on the theory of IR image processing and neglect the important influence of human eye characteristics on the sensor design and image generation. Therefore, robustness can not be guaranteed. In this paper, we propose a new reduced eye model based on the Gullstrand´s schematic eye. This eye model can serve as a quantitative factor of system design. Using both simulation and experiments, we illustrate the correctness and feasibility of our model.