Hijacking to post another example. I know from a previous work experience that automated dye-penetrant inspection (https://en.wikipedia.org/wiki/Fluorescent_pen

Hijacking to post another example. I know from a previous work experience that automated dye-penetrant inspection (https://en.wikipedia.org/wiki/Fluorescent_penetrant_inspection https://en.wikipedia.org/wiki/Fluorescent_penetrant_inspecti...), using CV for the automatic detection of indications, has been used in aerospace for at the very least 15 years (and quite likely much more).