机器视觉系统是指通过机器视觉产品（即图像摄取装置，分CMOS和CCD两种）把图像抓取到，然后将该图像传送至处理单元，通过数字化处理，根据像素分布和亮度、颜色等信息，来进行尺寸、形状、颜色等的判别。进而根据判别的结果来控制现场的设备动作。-Machine vision system is a machine vision products (ie image acquisition device, the two sub-CMOS and CCD) to capture the image, and then send the image to the processing unit, through digital processing, distribution and the pixel brightness, color and other information to the size, shape, color, etc. discrimination. According to the results and then determine the field devices to control the action.