CAJ | 학술논문

该文的研究目的是研究出一种基于机器视觉的PCB(Printed Circuit Board )板上圆Mark点的定位方法。首先，简要概述了PCB板上Mark点常见形态及作用，并根据坐标系变换原理推导出了利用Mark点对PCB板上贴装点进行校准的相关公式。然后，着重研究了基于模板匹配的Mark点中心定位方法，并利用边缘检测方法对Mark点的中心定位进行了优化。最后，运用Mark点的样本图片对该方法进行测试，所得结果较理想。
해문적연구목적시연구출일충기우궤기시각적PCB(Printed Circuit Board )판상원Mark점적정위방법。수선，간요개술료PCB판상Mark점상견형태급작용，병근거좌표계변환원리추도출료이용Mark점대PCB판상첩장점진행교준적상관공식。연후，착중연구료기우모판필배적Mark점중심정위방법，병이용변연검측방법대Mark점적중심정위진행료우화。최후，운용Mark점적양본도편대해방법진행측시，소득결과교이상。
The purpose of this study is to research a positioning method of circular Mark in PCB based on machine vision. First of all, A brief overview of the form and function of the common Mark in PCB is given, and the formula for calibrating the posi-tion of sticking point in PCB is derived by using coordinate transformation based on Mark point position. Then, this paper stud-ies the positioning method of circular Mark based on template matching, and the Mark point position is optimized by using edge detection method. Finally, the method is texted by using several Mark point sample pictures and the result is ideal.