Abstract: This paper proposes a new method to automatically detect the quality of ink-jet，describes architecture of the system，and represents design of the software.The system is based on high speed video capture device and image processing techniques.A microscope and a CCD camera are used to magnify and capture the flying ink drop images，a frequency generator and a two axis motor stage are applied as controlling unit.The system accomplishes automatic and real time capture of ink drop images.In the process of grapping images，the camera can be positioned accurately to each nozzle of the print-head.The captured images are analyzed with machine vision techniques，thus the visualization of ink-jet drops and the automatic detection of ink-jet quality are realized.

摘要： 提出了一种自动检测喷墨质量的方法，说明了系统组成结构，并给出了软件设计要点。系统基于高速视频采集设备和图像处理技术，以显微镜和CCD相机作为飞行墨滴的放大和图像获取部件，以频率发生器和两轴运动平台作为控制部件，完成了对墨滴图像的自动和实时采集。在采集过程中能够对喷头的每个喷嘴进行自动精确定位。对采集到的图像使用机器视觉方法进行分析，实现了喷墨液滴的可视化和喷墨质量的自动检测。