Korean Journal of Optometry and Vision Science 2012;11(1):66-70.
Published online June 20, 2012.
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
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