机床与液压
機床與液壓
궤상여액압
Machine Tool & Hydraulics
2015年
16期
139-142
,共4页
机器视觉检测%直立电容引脚%二值化%圆度
機器視覺檢測%直立電容引腳%二值化%圓度
궤기시각검측%직립전용인각%이치화%원도
Machine vision inspection%Vertical capacitor pins%Binaryzation%Circularity
电子元器件引脚检测是印刷电路板在插件时必不可少的环节，而引脚的合格与否差别十分细微，需用精确和快速的检测方法进行判定。结合直立电容引脚图像的特点，在对引脚图像二值化分割的基础上，对连通区域的特征（面积和圆度）进行分析，排除噪声干扰，精确定位目标的位置，实现了对直立电容引脚的数目、尺寸和间距的检测。对比检测实验和重复测试稳定性实验结果表明：该检测方法的检测精度高，速度快，可以满足电子元器件引脚在线检测的要求。
電子元器件引腳檢測是印刷電路闆在插件時必不可少的環節，而引腳的閤格與否差彆十分細微，需用精確和快速的檢測方法進行判定。結閤直立電容引腳圖像的特點，在對引腳圖像二值化分割的基礎上，對連通區域的特徵（麵積和圓度）進行分析，排除譟聲榦擾，精確定位目標的位置，實現瞭對直立電容引腳的數目、呎吋和間距的檢測。對比檢測實驗和重複測試穩定性實驗結果錶明：該檢測方法的檢測精度高，速度快，可以滿足電子元器件引腳在線檢測的要求。
전자원기건인각검측시인쇄전로판재삽건시필불가소적배절，이인각적합격여부차별십분세미，수용정학화쾌속적검측방법진행판정。결합직립전용인각도상적특점，재대인각도상이치화분할적기출상，대련통구역적특정（면적화원도）진행분석，배제조성간우，정학정위목표적위치，실현료대직립전용인각적수목、척촌화간거적검측。대비검측실험화중복측시은정성실험결과표명：해검측방법적검측정도고，속도쾌，가이만족전자원기건인각재선검측적요구。
Detection of electronic components pins is an essential part during assembling the printed circuit board, therefore, an accurate and fast method is needed to determine the subtle differences between qualified and unqualified pins. To detected the number, size and spacing of vertical capacitor pins, the features of vertical capacitor pins were considered and the area and circularity character?istics of connected region of binary image were analyzed to eliminate the interference of image noise and to locate the targets accurately. The results of the contrast test and stability test demonstrate the method’ s high accuracy and high speed, and it can meet the require?ments of online detection of electronic components pins.
