基于FPGA的微光视频采集与预处理系统设计 |
投稿时间:2022-06-08 修订日期:2022-06-16 点此下载全文 |
引用本文:闫续宁,舒斌,陈文明.基于FPGA的微光视频采集与预处理系统设计[J].红外,2022,43(10):10~15 |
摘要点击次数: 258 |
全文下载次数: 256 |
|
|
中文摘要:针对当前微光视频图像采集与处理系统中数据处理量与系统实时性之间的矛盾,设计了一种基于现场可编程门阵列(Field Programmable Gate Array, FPGA)的实时信号采集与预处理系统。该系统以高性能Xilinx A7系列芯片为主控芯片,使用两片第二代双倍数据率同步动态随机存取存储器(Double-Data-Rate Two Synchronous Dynamic Random Access Memory, DDR2 SDRAM)作为核心存储器件,并定制超感光互补金属氧化物半导体(Complementary Metal Oxide Semiconductor, CMOS)传感镜头作为视频图像采集器件。完成系统的硬件设计之后,通过Xilinx Vivado平台以及Matlab进行软件系统的工程设计与仿真分析,实现了微光环境下视频图像的采集、存储、处理与显示的全过程。实验结果表明,该系统采集的微光视频图像实时性好、动态画面流畅。 |
中文关键词:微光视频图像 现场可编程门阵列 实时采集 预处理 |
|
low-light-level video image; FPGA; real-time acquisition; preprocessing |
|
|
Abstract:Aiming at the contradiction between data processing capacity and real-time performance in current low-light-level video image acquisition and processing system, a real-time signal acquisition and preprocessing system based on FPGA is designed. The high-performance Xilinx A7 series chip is used as the main control chip. Two DDR2 SDRAM are used as the core memory device. And a CMOS sensing lens is customized as the video image acquisition device. When the hardware design of the system is completed, the engineering design and simulation analysis of the software system are carried out by Xilinx Vivado platform and Matlab. The whole process of video image acquisition, storage, processing and display in the low-light-level environment is realized. The experimental results show that the low-light-level video images acquired by the system have good real-time performance and smooth dynamic pictures. |
keywords:low-light-level video image FPGA real-time acquisition preprocessing |
查看全文 HTML> 查看/发表评论 下载PDF阅读器 |