摘要
针对高分辨率科学级相机应用广泛,国内需求量大的背景,设计了基于长光辰芯公司GSENSE400图像传感器的国产化高分辨率科学级CMOS(Complementary Metal Qxide Semiconductor)相机。该相机系统包括基于FPGA(Field Programmable Gate Array)的数据采集、控制与Camera-Link输出设计。FPGA主要包含SPI(Serial Peripheral Interface)配置模块、CMOS时序驱动模块、数据采集模块、Camera-Link数据转换模块以及串口通信模块。根据CMOS的时序逻辑,在FPGA中实现了CMOS驱动时序的设计。根据相机输出HDR(High-Dynamic Range)图像的数据量,同时为了简化FPGA数据传输模块的设计,通过使用1片DS90CR287芯片,选用Camera-Link的base模式进行图像数据的传输,并实现串口对相机的控制。对该相机系统进行成像测试,实现了HDR模式下连续输出24帧,2 048×2 048像素,低读出噪声、高灵敏度、高动态范围图像,基本满足科学级成像条件的需求。
Aiming at the background of wide application of high-resolution scientific camera and large domestic demand,a domestic high-resolution scientific CMOS(Complementary Metal Qxide Semiconductor) camera based on GSENSE400 image sensor of Gpixel company is designed. The camera system includes data acquisition,control and Camera-Link output design based on FPGA(Field Programmable Gate Array). The FPGA mainly includes SPI(Serial Peripheral Interface) configuration module,CMOS timing driver module,data acquisition module,camera link data conversion module and serial communication module. According to the timing logic of CMOS,the timing design of CMOS driver is implemented in FPGA. According to the amount of HDR(HighDynamic Range) image data output by the camera,in order to simplify the design of FPGA data transmission module,using a DS90CR287 chip,the base mode of Camera-Link is selected for image data transmission,and the serial port control of the camera is realized. The imaging test is implemented for the designed camara system.It can output 24 frames continuously in HDR mode with 2 048 × 2 048 pixels,low readout noise,high sensitivity,high dynamic range image,and basically meet the requirements of scientific level imaging conditions.
作者
时玮淞
吕耀文
SHI Weisong;LU Yaowen(School of Opto-Electronic Engineering,Changchun University of Science and Technology,Changchun 130022,China)
出处
《吉林大学学报（信息科学版）》
CAS
2020年第3期291-300,共10页
Journal of Jilin University（Information Science Edition）
基金
吉林省教育厅“十三五”科学技术研究基金资助项目(JJKH20181134KJ)
吉林省重点科技攻关基金资助项目(20170204048GX)。
