一種新式的印刷電路板定位方法

Abstract

目前現在印刷電路板的定位誤差校正，最常用的方式就是用相機拍攝印刷電路板上的圓或是某些記號，若是尋找印刷電路板上的圓，就要利用使用Hough Transform得到相機拍攝的影像中的圓，藉此判斷相機拍攝的印刷電路板是否有擺放正確。 但是讓相機為了拍到印刷電路板上完整的記號，往往需要經過多次的調整後，才有辦法拍攝到完整的記號。 在本論文，希望放多個相機拍攝欲調整印刷電路板中的不同區塊，並且利用Geometric Hashing，去尋找欲參考圖片中的區塊，藉此做影像對齊，如此可以不用去拍攝印刷電路板上的特定記號，就能夠達到判斷印刷電路板的擺放是否正確。

Now,people correct the location error of the printed circuit board,the most common way is to use camera to capture the circle or some mark on the printed circuit board.

If we find the circle on the printed circuit board, it is necessary to find the circle using the Hough Transform to specify the circle to determine whether the printed circuit board is correctly placed.

But let the camera capture full mark on the printed circuit board,we often need to go through repeated adjustment, and then we can capture the full mark.

I hope to put multiple camera on the printed circuit board in different blocks, and apply Geometric Hashing to find the desired reference picture blocks to make the image alignment, so you can’t find mark on the print circuit board.