基于游程编码的PCB缺陷检测算法

在采用计算机视觉技术检测印刷电路板(PCB)质量时,对印制电路板的缺陷信息进行游程编码和连通区标注,连通区信息用指针数组和动态链表保存,信息处理速度得到提高,减少了数据存储所需内存空间;对连通区的特征量计算和数据分析,增强了抗干扰能力,能有效地进行缺陷判别并给出缺陷类型和位置信息.实验表明该方法简单有效,处理速度也较快.

PCB defect detection based on run-lengthen encoding

When using the computer vision technology to inspect Printed Circuit Board(PCB)quality,the image of PCB with defect information was encoded by the run length encoding and the connected component was labeled.The information of the connected component was stored in pointer array and dynamic chain tables,which increased the data processing speed and decreased memory occupation.The extraction of eigenvalue and processing for connected component enhanced the anti-jamming and could recognize defects and locate th...