| 具有视网膜仿生处理功能的CMOS图像传感器 |
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| 引用本文： | 孟丽娅.具有视网膜仿生处理功能的CMOS图像传感器[J].光电子．激光,2010(9):1306-1310. |
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| 作者姓名： | 孟丽娅 |
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| 作者单位： | 重庆大学光电技术及系统教育部重点实验室;重庆大学光学工程博士后流动站;黄淮学院; |
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| 基金项目： | 国家自然科学基金资助项目(60702007) |
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| 摘 要： | 借鉴生物视网膜进行图像采集和处理的结构及功能,设计了具有视网膜仿生片上信号处理电路的智能CMOS图像传感器(CIS)。像元内的仿生处理电路主要由自适应光接受器、滤波网络和减法运算电路3部分构成;CIS采用结构简单的空间滤波电阻网络和基于运算放大器的减法电路分别模拟水平细胞和双极细胞的功能,实现图像的边缘检测。在Chartered 0.35μm 2P4M CMOS工艺参数下,对各单元电路及6×6 CIS阵列进行仿真。
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| 关 键 词： | 图像传感器 视网膜 电阻网络 空间滤波 自适应 |
A CMOS image sensor with bionic retina processing function |
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| MENG Li-ya.A CMOS image sensor with bionic retina processing function[J].Journal of Optoelectronics·laser,2010(9):1306-1310. |
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| Authors: | MENG Li-ya |
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| Affiliation: | MENG Li-ya1,2,LAI Xiao-feng1,FENG Gang3,YUAN Xiang-hui1(1.Key Laboratory of Optoelectronics Technology , System,Ministry of Education of China,Chongqing University,Chongqing 400044,China,2.Post-doctoral Research Station of Optics Engineering,3.Huanghuai University,Zhumadian 463000,China) |
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| Abstract: | Imitating the image acquisition and processing of vertebrate retina,a bionic CMOS image sensor,which has the ability of image edge detection by a bionic retina signal processing circuitry on-chip,is designed and implemented.The bionic processing circuit in pixel consists of adaptive photoreceptor,filtering resistive network and subtraction Op-Amp circuit.In bionic CMOS image sensor,the spatial filtering resistive network with simple structure and subtraction Op-Amp circuit are used to simulate the function ... |
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| Keywords: | image sensor retina resistive network spatial filtering adaptive |
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