A prominent company made equipment that would optically inspect a part for flaws. Their 'rule-based' approach looked for combinations of geometry that might be present in the vicinity of a flaw. While their equipment found many defects that had been missed by visual inspection, they also generated many 'false alarms'. GCA solved the problem by doing a software-based analysis of the data that described geometry of the part. GCA software generated a list of sites where rule-based alarms were expected. It also automatically compared the results from the vision hardware and the virtual analysis to produce a list of real flaws. With help from GCA software, this AOI product went from nearly obsolete to ‘State of the Art’.

Automatic Optical Inspection