Image processing strategies dedicated to visual cortical stimulators: A survey

被引：27

作者：

Buffoni, LX ^{[1
]}

Coulombe, J ^{[1
]}

Sawan, M ^{[1
]}

机构：

[1] Ecole Polytech Montreal, Dept Elect Engn, PolySTIM Neurotechnol Lab, Montreal, PQ H3C 3A7, Canada

来源：

ARTIFICIAL ORGANS | 2005年 / 29卷 / 08期

关键词：

phosphene; phosphene pattern recognition; visual cortical stimulation; intracortical microelectrodes; scene representation; image processing; resolution reduction; image segmentation;

D O I：

10.1111/j.1525-1594.2005.29104.x

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Multi-electrode devices are constantly evolving toward a state where complexity and reliability are adequate for providing a breakthrough in visual cortical stimulation allowing the blind to recover partial vision. Yet few research teams have focused on the development of the front-end subsystem that transforms an input image from a camera into stimulation commands. This article collects state-of-the-art knowledge about the appearance and organization of phosphenes, and previous work in image processing dedicated to visual cortical stimulation. Observations and hypothesis about important issues are highlighted, and six image processing strategies that could be used in such a subsystem are presented, from the most optimistic that use brightness modulation to emulate grayscale to the most conservative that use only on/off phosphene evocation.

引用

页码：658 / 664

页数：7

共 22 条

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