Research on a vision chip based on biological systems

基于生物系统的视觉芯片研究

• 批准号: 09045052
• 负责人: YONEZU Hiroo
• 金额: $ 2.43万
• 依托单位: Toyohashi University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09045052/
• 关键词: vision; retina; vision chip; local adaptation; motion detection; optical flow; target tracking; analog integrated circuit; シリコン網膜; 適応機能; 特徴抽出; 自己組織化; 視覚情報処理

Research on fundamental devices, circuits and networks was carried out based on biological vision systems in order to develop basic technologies for vision LSIs.An analog integrated circuit was developed into which the function of an outer retina was implemented. A simple network was realized by utilizing a MOS channel resistance connecting all photoreceptors. Global adaptation was performed by varying a gate voltage. A fundamental circuit for local adaptation was also developed.For motion detection, a basic analog integrated circuit was designed and fabricated based on the correlation model constructed with the mechanism of an insect. As a result, the direction and speed of a moving light spot were detected in an one-dimensional space. A basic circuit was also studied for motion detection in a two-dimensional space.A model for target tracking was constructed, which is essential for the motion detection. Smooth pursuit was confirmed by computer simulation. Fundamental circuits for the model were designed and their normal operation was confirmed by SPICE simulation.These networks were redesigned to increase the scale of integration using a current finepattern technology. They are going to be fabricated through VDEC.In Kyungpook National University, a large-scale integrated circuit was designed and fabricated based on the fundamental network of the outer retina. Both universities collaborated for design, fabrication and evaluation of vision chips. Results of the research were presented at international conferences and in journals.

为了开发视觉LSI的基础技术，以生物视觉系统为基础，进行了基础器件、电路和网络的研究。开发了实现外视网膜功能的模拟集成电路。通过利用连接所有感光器的 MOS 通道电阻实现了一个简单的网络。全局适应是通过改变栅极电压来执行的。还开发了用于局部适应的基本电路。对于运动检测，基于利用昆虫机制构建的相关模型设计和制造了基本模拟集成电路。结果，在一维空间中检测到移动光点的方向和速度。还研究了二维空间运动检测的基本电路。建立了运动检测所必需的目标跟踪模型。计算机模拟证实了追踪的顺利进行。设计了该模型的基本电路，并通过SPICE仿真确认了其正常运行。使用当前的精细图案技术重新设计了这些网络，以增加集成规模。它们将通过VDEC制造。庆北国立大学根据外视网膜的基本网络设计并制造了大规模集成电路。两所大学在视觉芯片的设计、制造和评估方面进行了合作。研究结果在国际会议和期刊上发表。

项目成果

H.Yonezu,et al: "Analog Motion Detection and Edge Detection Circuits Based on Biological Systems" Proc.of The Int.Symp.on Future of Intellectual Integrated Electronics. 399-400 (1999)

H.Yonezu 等人：“基于生物系统的模拟运动检测和边缘检测电路”Proc.of The Int.Symp.on Future of Intellectual Integrated Electronics。

H.Yonezu,et al.: "Self-Organizing Network for Feature-Map Formation:Analog Integrated Circuit Robust to Device and Circuit Mismatch" J.Computers & Electrical Engineering. 24・1/2. 63-73 (1998)

H. Yonezu 等人：“用于特征图形成的自组织网络：对器件和电路不匹配具有鲁棒性的模拟集成电路”J.计算机与电气工程24・1/2 (1998)。

H.Ikeda, et al.: "A Novel Retina Chip with Simple Wiring for Edge Extraction" IEEE Photon.Technol.Lett.10・2. 261-263 (1998)

H.Ikeda 等人：“一种用于边缘提取的简单接线的新型视网膜芯片”IEEE Photon.Technol.Lett.10・2 (1998)。

H.Ikeda, et al.: "An Adaptive Silicon Retina Performing an edge extraction with a MOS-Type Spatial Wiring and Smart Pixel Circuits" Extended Abstracts of the 1997 Int.Conf.on Solid State Devices and Materials. 386-387 (1997)

H.Ikeda 等人：“利用 MOS 型空间布线和智能像素电路执行边缘提取的自适应硅视网膜”1997 年 Int.Conf.on Solid State Devices and Materials 的扩展摘要。

T.Asai, M.Ohtani and H.Yonezu: "Analog MOS Circuits for Motion Detection Based on Correlation Neural Networks" Jpn.J.Appl.Phys.38・4B (to be published). (1999)

T.Asai、M.Ohtani 和 H.Yonezu：“基于相关神经网络的运动检测的模拟 MOS 电路”Jpn.J.Appl.Phys.38・4B（待出版）。