Industrial Vision Inspecting System Based On Virtual Instrument Technology

Computer vision inspection is an important method of modern industry inspection. With advancement of production technology, some products are more and more smaller, they can not be inspected by traditional detection techniques. Development of computer techniques and image processing techniques accelerate the spread and application of computer vision inspection technique. The technique has characteristics of high speed, precise, reliable and untouched.Computer vision inspection techniques involving CCD camera, lens, lighting and vision software design techniques are discussed in this paper. The techniques are combined with the virtual instrument techniques in our study. Two computer vision industry inspection systems are developed, one is used to measuring geometry size, the other is used to inspecting PCBA. Image processing techniques such as edge detection and match pattern are applied in the two systems.This paper includes demand analysis, relative technology choice, database design, hardware choice, and software design of computer vision inspection system, sum-up, and foreground prospect.