TY - GEN
T1 - Proposed Intracortical vision prosthesis system for phosphene mapping and psychophysical studies
AU - Kaskhedikar, Gayatri P.
AU - Hu, Zhe
AU - Dagnelie, Gislin
AU - Troyk, Philip R.
PY - 2013/12/1
Y1 - 2013/12/1
N2 - Progress in the research and development of the proposed intracortical vision prosthesis towards human implantation brings an increased need to evaluate the ability of an implanted volunteer to utilize prosthetic vision for daily tasks. Simulations of prosthetic vision, in sighted individuals, can help assess the usability of artificial vision for the visual tasks in unsighted users. The proposed intracortical vision prosthesis will acquire an image, and process the image in realtime to generate stimulation patterns to be eventually delivered to the implanted microelectrodes. In order to evaluate the simulated prosthetic vision by psychophysical and phosphene mapping studies, a new platform is proposed for image processing in the intracortical vision prosthesis system. The image processor system will be designed to be portable, lightweight, and have low power consumption, to allow continuous wearablility by the user. The throughput performance of the processor is identified as an important criterion in the selection of an optimal image processor. In this paper we demonstrate the preliminary image processing tests performed on an ARM-based processor as a first step towards the development of a continuously wearable image processor of the intracortical vision prosthesis system.
AB - Progress in the research and development of the proposed intracortical vision prosthesis towards human implantation brings an increased need to evaluate the ability of an implanted volunteer to utilize prosthetic vision for daily tasks. Simulations of prosthetic vision, in sighted individuals, can help assess the usability of artificial vision for the visual tasks in unsighted users. The proposed intracortical vision prosthesis will acquire an image, and process the image in realtime to generate stimulation patterns to be eventually delivered to the implanted microelectrodes. In order to evaluate the simulated prosthetic vision by psychophysical and phosphene mapping studies, a new platform is proposed for image processing in the intracortical vision prosthesis system. The image processor system will be designed to be portable, lightweight, and have low power consumption, to allow continuous wearablility by the user. The throughput performance of the processor is identified as an important criterion in the selection of an optimal image processor. In this paper we demonstrate the preliminary image processing tests performed on an ARM-based processor as a first step towards the development of a continuously wearable image processor of the intracortical vision prosthesis system.
UR - http://www.scopus.com/inward/record.url?scp=84897699252&partnerID=8YFLogxK
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U2 - 10.1109/NER.2013.6696075
DO - 10.1109/NER.2013.6696075
M3 - Conference contribution
AN - SCOPUS:84897699252
SN - 9781467319690
T3 - International IEEE/EMBS Conference on Neural Engineering, NER
SP - 880
EP - 882
BT - 2013 6th International IEEE EMBS Conference on Neural Engineering, NER 2013
T2 - 2013 6th International IEEE EMBS Conference on Neural Engineering, NER 2013
Y2 - 6 November 2013 through 8 November 2013
ER -