完全集成的多模式光电子记忆元阵列,用于多样化的传感器内计算
Heyi Huang1,2,3, Xiangpeng Liang1, Yuyan Wang4,5
1School of Integrated Circuits, Beijing Innovation Center for Integrated Circuits, Tsinghua University, Beijing, China.
Nature nanotechnology
|November 8, 2024
概括
本研究介绍了一种新的传感器内计算系统,将光电子记忆器与CMOS电路集成在一起. 这一突破可以实现高效的视觉处理,增强AI视觉系统,降低能源消耗.
科学领域:
- 材料科学与工程 材料科学与工程
- 电气工程 电气工程
- 计算机科学 计算机科学
背景情况:
- 传感器内计算,融合传感,记忆和处理,显示出人工视觉的前景.
- 新兴设备与CMOS用于传感器内计算的单立体集成是一个重大挑战.
研究的目的:
- 展示一个完全集成的传感器内计算系统,其中包括多功能光电子记忆元 (OEM) 电池和CMOS电路.
- 展示可配置的多模式功能及其在视觉处理任务中的应用.
主要方法:
- 使用CMOS集成的一晶体管一OEM电池的1kb阵列的制造.
- 通过光学和电气操作配置多模式功能 (电子记忆器,动态OEM,非挥发性OEM).
- 展示视觉处理任务,包括图像预处理,对象跟踪和人类运动识别.
主要成果:
- 在集成OEM系统中实现了可配置的多模式功能.
- 使用非挥发性OEM模式,图像识别精度从85.7%提高到96.1%.
- 在物体跟踪方面表现出高精度 (96.1%),在使用传感器内储存计算的人类运动识别方面表现出91.2%的精度.
- 与图形处理单元相比,展示了超过20倍的能源节约.
结论:
- 多功能OEM与Si CMOS的单立体集成为先进的传感器内计算提供了一个具有成本效益的平台.
- 开发的系统显著提高了人工视觉能力,提高了效率和性能.
- 这项工作为多样化,低功耗的传感器内计算应用铺平了道路.
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