使用大恒图像采集卡VT-110搭建的图像采集VI，包含基本的采集图像到屏幕的功能。-Use Daheng image acquisition card VT-110 built image acquisition VI, containing the basic functions of image acquisition to the screen.

在Labview环境下，利用大恒水星相机的动态链接库连接相机，并实时测得矩形物体的边长与误差。-In Labview environment, using Daheng dynamic link library Mercury camera to connect the camera and side length measured in real time with errors rectangular objects.