사용자의 시선 방향 획득을 이용한 인공 망막 모의 실험 시스템 개발 |
김현석, 장민혜, 이인범, 박광석 |
1Interdisciplinary Program of Bioengineering, Seoul National University, Seoul, 2Electronics and Telecommunications Research Institute, U-Health Research Team, Daejeon, 3Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul, Korea |
Development of Artificial Retina Simulator Using Eye-Gaze Controlled Image Acquisition |
Hyun Seok Kim, Min Hye Chang, In Bum Lee, Kwang Suk Park |
|
Abstract |
Purpose To develop artificial retina simulator using eye-gaze controlled image acquisition for investigating effective stimulate pattern of artificial retina prior to clinical trial. Methods: Pupil center coordinates was acquired using eye tracker and then mapped into those of external image. Geometry around eye-gaze in scene image was converted to the simulated phosphene image. The effectiveness of developed system was verified with two normal subjects by object recognition experiments. Results: The direction of eye-gaze in scene image was successfully obtained in real-time. Experimental results showed an object recognition rate of 80% with the simulation of 144 microelectrode arrays. Conclusions: To develop artificial retina system, eye tracking based artificial retina simulator was developed and its effectiveness was verified. (Korean J Optom Vis Sci 2012;11(1):66-70) |
Key Words:
Computer simulations, Pattern recognition, visual, Phosphenes, User-computer interface, Visual prosthesis |
|