Research on locating algorithm of vision alignment system in automatic high precision chip mounter

A vision recognizing and locating algorithm for high precision chip mounter machine is designed. An image recognition method for the images of PCB board marks and chips is presented by combining image segmentation, geometric characteristic recognition and template matching methods. A vision recognition software is developed based on the algorithm and a verification experiment is conducted on images of PCB board and chips. The result shows that the algorithm can effectively achieve the recognizing and locating mission for mounter s vision system.