相关实验视频

Updated: Sep 9, 2025

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

神经形态视觉传感器的基于基因的脑启发的光突触:实验和理论研究

Zeesham Abbas^1,2, Muhammad Riaz^1,2, Syed Hassan Abbas Jaffery³

¹Hybrid Materials Center (HMC), Sejong University, Seoul, 05006, Republic of Korea.

Small (Weinheim an der Bergstrasse, Germany)

|September 4, 2025

概括

这项研究展示了基于SnS2的光电子突触装置,用于人工视觉. 这些memristors模仿生物视网膜,在MNIST数据集上达到98.51%的精度,用于先进的机器人视觉.

科学领域:

材料科学
神经形态工程
人工智能

背景情况:

2D 基基因记忆器为人工生物视觉系统提供光学和电学调节的突触行为.
像SnS2这样的二维范德瓦尔斯材料通过合理设计使多功能光电子设备成为可能.

研究的目的:

使用基于SnS2的多功能光电子突触装置模拟人类的生物视觉系统.
研究SnS2对大脑视觉皮层相关的记忆和逻辑功能的潜力.
评估基于SnS2的设备在机器视觉任务中的性能,包括图像识别.

主要方法:

基于第一原理的密度函数理论 (DFT) 计算以确定SnS2半导体特性 (带隙:2.47 eV).
对SnS2光电子突触装置的制造和表征.
使用SNS2视网膜设备进行MNIST数据集识别的机器视觉模拟.
试验确定突触特征以指导混合人工智能框架培训.

主要成果:

SnS2表现出极好的光敏感性,能够对字母识别和图像记忆产生波长敏感反应.
在机器视觉模拟中,SnS2视网膜装置实现了MNIST数据集的98.51%准确性.
设备在超低电压 (0.1V) 和低能耗 (0.345nJ/事件) 上工作.
SnS2光突触装置通过不同的光输入波长执行OR和AND逻辑操作.

结论:

基于SnS2的光电子突触装置对开发先进的机器人视觉系统具有显著的前景.
与混合人工智能框架的整合可以实现创新的神经形态计算能力.
这些发现为下一代模仿生物视网膜功能的人工视觉系统铺平了道路.

关键词:

人工视觉系统神经形态计算神经形态视力光电子记忆器照片突触

更多相关视频

Scalable Fluidic Injector Arrays for Viral Targeting of Intact 3-D Brain Circuits

Scalable Fluidic Injector Arrays for Viral Targeting of Intact 3-D Brain Circuits

Published on: January 21, 2010

Using Affordable LED Arrays for Photo-Stimulation of Neurons

Using Affordable LED Arrays for Photo-Stimulation of Neurons

Published on: November 15, 2011

相关概念视频

Photoreceptors and Visual Pathways

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...

Channel Rhodopsins

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...