基于双边滤波的高速图像采集系统设计  

The development of a high-speed image acquisition systemutilizing bilateral filtering

作　　者：武新玲 文丰[1] 张凯华[1] WU Xinling;WEN Feng;ZHANG Kaihua(Key Laboratory of Electronic Testing Technology,Science and Dynamic Testing of Education Key Laboratory Instrument,North University of China,Shanxi Taiyuan 030051,China)

机构地区：[1]中北大学电子测试技术重点实验室仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《工业仪表与自动化装置》2025年第1期13-17,78,共6页Industrial Instrumentation & Automation

基　　金：陕西省职业技术教育学会2024年度职业教育教学改革研究项目(2024SZX070);西安职业技术学院2023年度专项项目(2023YJZX05);西安职业技术学院2022年度科技项目(2022YB03)。

摘　　要：为解决航天飞行器采集数据过程由于环境因素影响,噪声干扰严重从而影响图片清晰度与数据高速采集的问题,设计了一款基于双边滤波的高速图像采集系统。该系统FPGA利用HTG8518芯片实现图像数据采集,通过双边滤波算法,降低图像噪点。采用DDR3芯片缓存图像数据,通过RS-422接口与千兆以太网实现与上位机的交互通信。经实验分析验证,该系统设计可以实现数据的高速传输和准确存储,其采集速率约1.9 Gbps,读取速率约650 Mbps,图像信噪比增长约5 dB,经多次实验测量后无误码现象发生,可推广应用于军事和航空航天领域图像数据采集。A high-speed image acquisition system,based on bilateral filtering,has been developed to address the issue of noise interference during spacecraft data acquisition due to environmental factors.The FPGA in the system utilizes HTG8518 chip for image data acquisition and employs bilateral filtering algorithm to reduce image noise.Image data is cached using DDR3 chip,while interactive communication with the host computer is achieved through RS-422 interface and Gigabit Ethernet.Experimental analysis and verification have demonstrated that the system design enables high-speed transmission and accurate storage of data,with an acquisition rate of approximately 1.9 Gbps,a reading rate of about 650 Mbps,a 5 dB increase in image signal-to-noise ratio,and no error occurrences after multiple experimental measurements.This technology can be applied to military and aerospace image data acquisition.

关 键 词：FPGA HTG8518 图像采集 双边滤波 实验测试校验 

分 类 号：TN98[电子电信—信息与通信工程]