本文对全息焊点检测的原理作了简要的介绍,针对检测中遇到的具有复杂背景的干涉图,提出了计算机自动处理与判别方法;完成了图像的背景抑制、噪声去除、平滑、细化及条纹的自动识别,获得了较好的结果.

The principle of de fects inspecting in selder joints on printed circuit board (PCB) by holographic method has been described briefly in this paper. In order to processing interferogram with intense background by computer, some suitable methods have been suggested. We have accomplished image background and noise depressing, smoothing, thinning and recognition of the fringes. Satisfied rasults have been obtained.