Phospene image processing algorithm for simulation of the visual prostheses

Phospene image generation is an important step in development of the visual prostheses. Because, according to clinical studies, the patients see the small light spots called phospene when use visual prosthesis. In the literature, few studies have been published on this subject, and ever increasing need to better understand the perceptual and physiological aspects of prosthetic vision have emerged. The image processing algorithms are very important in generation of the phospene image that allows simulating the prosthetic vision systems. In this study, a prosthetic vision simulator algorithm, generates the phospene image by processing the visual inputs for various electrode configuration, has been developed. Algorithm uses 2D Gaussion function to model the phospene spots and considers phospene interaction between electrodes. The results of the algorithm have been presented and study has been concluded.