The Hikvision LPR software will sometimes do "duplicates" - i.e. the same vehicle will get multiple (slightly different) hits, especially if there is lots of writing on it. The first image shows it correctly got 474ZMA (82.4% validity) for this truck ... but then it picked up some lettering and identified it as "DOGPOOP" with 93.9% validity ... at least it categorize it as "No S#!T" ... ;-)