Medical Eye Image Detection System

In order to detect the eye for medical needs, an eye detection system was designed, and an algorithm detecting the pupil was proposed. The system included the image acquisition device, the stimulatory light source and the software edited with Visual C++6.0. The stimulatory light source was controlled by a personal computer using serial communication. The algorithm was based on pupil geometry and gray features, and used mathematical morphology operations. Firstly the images were taken by the CCD camera, then transferred to the computer, and processed by the algorithm. Finally the location, size and dynamical characteristics of the pupil were presented. It is pointed that the system can acquisite clear images of bilateral eyes synchronously under medical conditions, and process them fast. The results show that the system can effectively detect and evaluate the eye by the pupil size and the change of pupillary response to light. It is an objective, accurate, quantitative method to detect the pupil, so it provides physicians with reliable diagnostic clues.