Presence inspection sounds simple.
A component is either there or it is not.
In practice, it quickly becomes more complex:
- Is the correct component present?
Is it in the correct position?
Is it fully inserted?
Has the product variant been assembled correctly?
Is a component obscured, reflective, transparent or only partially visible?
This is precisely why presence inspection is a classic, yet far from trivial, machine vision task.
It is commonly used for:
- assembly processes
- packaging
- medical devices
- plastic parts
- assemblies
- labels and package inserts
The objective is clear: detect missing components before they reach the next process step.
A missing component often causes more work later than the inspection itself.
