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Would Stream ALPR accuracy improve if I increased max_prediction_delay?

It really depends on the environment:

1) For example, in a parking use-case where the camera can see the plate clearly from a distance as the vehicle is approaching, then there is likely no meaningful difference in ALPR accuracy.

2) However, in cases where the camera cannot see plate as well (say due to some obstruction or because it’s a lower res camera), then increasing max_prediction_delay will give Stream a bit more time without rushing to find the best frame for the best ALPR results.

As always, we encourage you to test this parameter and compare results in your own specific environment.