基于视觉传达的船舶航行图像实时传输系统  

Ship navigation image real-time transmission system based on visual communication

作　　者：雷海涛[1] LEI Hai-tao(Jiangxi University of Technology,Nanchang 330098,China)

机构地区：[1]江西科技学院,江西南昌330098

出　　处：《舰船科学技术》2021年第20期67-69,共3页Ship Science and Technology

基　　金：江西省社会科学“十三五”规划项目(17YS31)

摘　　要：为实现船舶航行图像的高效处理与传输,应用视觉传达思想设计一种船舶航行图像实时传输系统。系统由多个模块构成,其中通信模块采用LRIT系统进行通信。前端图像采集模块负责进行图像采集,通过IIC总线对图像解码芯片实施视觉传达配置,采用数字多媒体软件进行采集图像的视觉传达。指令和图像处理模块由通信协议处理单元、指令信息处理单元等构成。图像滤波模块使用的图像滤波处理算法为中值滤波算法,能够实现噪声的降低与图像质量的提升。对系统进行测试与分析,测试结果表明系统平均仅需2.375 s即可实现船舶航行图像的压缩,传输速度在70~85 MB/s之间,并且系统具备良好的滤波性能,可以满足实际船舶航行图像实时传输需求。In order to realize the efficient processing and transmission of ship navigation images,a real-time transmission system of ship navigation images is designed using the idea of visual communication.The system is composed of multiple modules,among which the communication module adopts the LRIT system for communication.The front-end image acquisition module is responsible for image acquisition,implements visual communication configuration on the image decoding chip through the IIC bus,and uses digital multimedia software for visual communication of the collected images.The instruction and image processing module is composed of a communication protocol processing unit,an instruction information processing unit,and so on.The image filter processing algorithm used by the image filter module is a median filter algorithm,which can reduce noise and improve image quality.The system is tested and analyzed.The test results show that the system only needs 2.375 s on average to realize the compression of ship navigation images,the transmission speed is between70 MB/s and 85 MB/s,and the system has good filtering performance,which can satisfy actual ships.Need for real-time transmission of navigation images.

关 键 词：视觉传达 船舶航行图像 中值滤波算法 CCD摄像头 图像传输系统 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]