Automated optical inspection (AOI) is a machine vision-based technology that uses high-resolution cameras and sophisticated image processing algorithms to inspect printed circuit boards for manufacturing defects. missing component) and quality defects (e. There are LED light sources built into the setup. The AOI systems allow PCB and IC substrate manufacturers to find. Automated Optical Inspection (AOI) is an advanced inspection method used in electronics manufacturing to detect a wide variety of production defects by capturing and analyzing visual data from printed circuit boards (PCBs).