Method Research Of The Human Eye's Sight Estimated On Behavioural Analysis

Through the estimation to human eye's gaze direction, on one hand, we can find the area or targets people focus on, for the further study of human physiological functions and psychological activity, etc. On the other hand, we still can use the movements of the eyes behavior to control the external devices and systems.This system was designed based on infrared television method principles, consists of both OpenCV software system and image acquisition hardware device. When System is running, infrared light source and camera work, the software system acquire the eye image, and then a series preprocessing step, including histogram equalization, the image smooth and binary image etc, was done, which make the initial image to achieve an ideal effect, preparing for behind. By next, Hough transform round detection and gray-level projection methods were took to locate the Purkinje spots and pupil center, and obtain the information of the two center points. Finally, in prior to the eye-gaze judgment criterion established, by comparing and handling the coordinates information of this two critical points to determine the eye-gaze direction in images, and draw the conclusion.This text openned first introduced behavior analysis simply, the concept and actuality of researching gaze direction estimation significance simply first, next systematically introduces the structural characteristics of eye rotation, and various eye correlative measuring method, then introduces the method of estimating the sight in detail in this paper, contains the principle of sight estimation, algorithm process and the programming designing, and do a full explanation related image processing knowledge. Finally, I make a scientific performance analysis to the result of the experiment and overall system.