TY - JOUR
T1 - Image processing and interface for retinal visual prostheses
AU - Liu, Wentai
AU - Fink, Wolfgang
AU - Tarbell, Mark
AU - Sivaprakasam, Mohanasankar
PY - 2005
Y1 - 2005
N2 - Controlled electrical stimulation of the retina can result in visual percepts in blind patients. In contrast to the over 100,000,000 photoreceptors in a healthy retina, even hundreds of pixels/electrodes of a retinal implant may restore low-resolution vision for unaided mobility and large print reading. We describe the real-time application of image processing techniques such as contrast and brightness enhancement, grayscale histogram equalization, edge detection, and grayscale reduction, to enhance visual perception provided by a retinal implant. We discuss schemes for reducing the amount of data transmitted wirelessly to the implant, as well as the interface between the external imaging unit and retinal implant.
AB - Controlled electrical stimulation of the retina can result in visual percepts in blind patients. In contrast to the over 100,000,000 photoreceptors in a healthy retina, even hundreds of pixels/electrodes of a retinal implant may restore low-resolution vision for unaided mobility and large print reading. We describe the real-time application of image processing techniques such as contrast and brightness enhancement, grayscale histogram equalization, edge detection, and grayscale reduction, to enhance visual perception provided by a retinal implant. We discuss schemes for reducing the amount of data transmitted wirelessly to the implant, as well as the interface between the external imaging unit and retinal implant.
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U2 - 10.1109/ISCAS.2005.1465240
DO - 10.1109/ISCAS.2005.1465240
M3 - Conference article
AN - SCOPUS:34047172698
SN - 0271-4310
SP - 2927
EP - 2930
JO - Proceedings - IEEE International Symposium on Circuits and Systems
JF - Proceedings - IEEE International Symposium on Circuits and Systems
M1 - 1465240
T2 - IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005
Y2 - 23 May 2005 through 26 May 2005
ER -