False positive

A positive prediction for a case that is negative according to the reference.

Define the positive class before interpreting this metric. If positive means an annotation error, a false positive is a correct annotation unnecessarily flagged for correction. Reducing these flags can save review time, but it should not come at an unexamined cost in missed errors.

In practice

A correct label is sent back to the supplier because a judge mistakenly treats a brief occlusion as a missing object.