基于LabVIEW的大视场激光视频图像采集系统  

Large field Laser video image acquisition system based on LabVIEW

作　　者：郏露锋 张凯亮 JIA Lufeng;ZHANG Kailiang(Xuzhou University of Technology,Xuzhou Jiangsu 221000)

机构地区：[1]徐州工程学院,江苏徐州221000

出　　处：《激光杂志》2023年第4期259-264,共6页Laser Journal

基　　金：江苏省现代教育技术研究智慧校园课题(No.2021-R-96737)。

摘　　要：针对激光视频图像采集过程中视角不足、图像呈现效果不佳问题,设计基于LabVIEW的大视场激光视频图像采集系统。该系统利用帧触发器和串行接口与摄像机相连,控制摄像机拍摄大视场激光视频图像;摄像机依据IEEE-1394总线协议将拍摄的大视场激光视频图像,传输到视频图像编码器内,利用该编码器对其实施压缩编码处理后,将大视场激光视频图像传输到视频图像处理器内;该处理器采用LabVIEW软件编程形式,将视频图像处理算法程序写入其中,通过运行该程序对激光视频图像进行亮度差异调整、图像配准等处理,将处理后的图像存储到存储器内,并利用USB控制器连接显示屏,为用户程序大视场激光视频图像采集结果。实验表明:该系统的中断时间为2.0 min左右,采集的激光视频图像水平视场角由48°增加到83°,且压缩激光视频图像帧频率波动区间为33 f/s-34 f/s,系统具备较强的应用效果。In order to improve the problem of insufficient visual angle and poor image rendering effect in the process of laser video image acquisition,a large field of view laser video image acquisition system based on LabVIEW is designed.The system control element uses frame trigger and serial interface to connect with the camera,and controls the camera to shoot laser video images with large field of view.According to IEEE-1394 bus protocol,the camera transmits the wide-field laser video image to the video image encoder.After the encoder implements compression and coding processing,the wide-field laser video image is transmitted to the video image processor.The processor adopts the form of the LabVIEW software programming,the video image processing algorithm program written to them,by running the program is carried out on the laser video image brightness difference adjustment,image registration,such as processing,the processed image is stored in the memory,and use the USB controller connected display,wide field for the user program laser video image acquisition result.Experiments show that the interruption time of the system is about 2.0 min,the horizontal field of view of the collected laser video image is increased from 48°to 83°,and the frame frequency fluctuation range of the compressed laser video image is 33-34 f·s-1,and the system has strong application effect.

关 键 词：LABVIEW 大视场 激光视频图像 采集系统 图像配准 图像编码器 

分 类 号：TN957[电子电信—信号与信息处理]