A hardware system for emulating the early vision utilizing a silicon retina and SpiNNaker chips

A hardware system for emulating the early vision utilizing a silicon retina and SpiNNaker chips
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利用硅视网膜和 SpiNNaker 芯片模拟早期视觉的硬件系统

DOI:
10.1109/biocas.2014.6981785
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发表时间:
2014
期刊:
Proceedings of the IEEE Biomedical Circuits and Systems Conference
影响因子:
--
通讯作者:
川節拓実,眞田忠,石田椋也,奥野弘嗣
川節拓実,眞田忠,石田椋也,奥野弘嗣
中科院分区:
--
文献类型:
--
作者:
丹羽涼介;田中英一郎;梶原陽介;三枝省三;弓削 類;Yuka Kawabata;川節拓実,眞田忠,石田椋也,奥野弘嗣

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为了揭示视网膜和皮层神经元的功能作用,需要研究视觉神经元网络在自然视觉环境下的反应。在这项研究中,我们开发了一个实时的视觉系统仿真器,用于再现视网膜和视觉皮层的神经活动,结合硬件视网膜仿真器在以前的研究和SpiNNaker芯片。设计并制作了一个接口板,将视网膜模拟器模拟的视网膜尖峰信号提供给SpiNNaker芯片。利用多种并行处理技术的优势,仿真器产生模拟尖峰1毫秒的精度。通过呈现自然场景来检查仿真器模拟的神经反应。
To reveal the functional roles of retinal and cortical neurons, responses of a visual neuronal network under natural visual environments should be investigated. In this study, we developed a real-time visual system emulator for reproducing neural activities in the retina and the visual cortex by combining a hardware retina emulator developed in the previous study and SpiNNaker chips. An interface board was designed and fabricated to provide retinal spikes simulated by the retina emulator to SpiNNaker chips. Taking advantages of multiple parallel processing techniques, the emulator generates simulated spikes with 1 ms precision. Neural responses simulated by the emulator was examined by presenting natural scenes.
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