Night smearing/temporal filtering.. help

[blazin912]

It was raining last night and I really noticed this when reviewing some footage. Periodically the rain would cause a white blip to appear in a portion of my frame. This then resulting in some temporal ghosting leaving a streak or smear pattern in what should be a black frame. I'm not sure what setting controls this.

I captured a plate last night as well. Hoping someone can help me adjust to correct this:

In the top left of the image you can make out faint repetitive humps that align with the car's driver side headlamp. This is the effect I believe needs to be eliminated if possible. You can also see the plate isn't great but the the ALPR back end was able to tag it with 70% confidence.

Camera output:


Conditons:

Backlight off
WB Outdoor
Defog off

 

[wittaj]

That looks like a camera out of focus.

And you should knock NR down to 30ish or so. that would help.

Some of us would notice for LPR that it would suffer in some situations with a trailing tail or fish gill type look and I think that is some of what is seen off the bumper. Here is an example of what it looks like - notice this fish gill look in red and comet trail in yellow:

Annoying, but the plate can still be read. You could try to lower contrast, but then risk getting the plate.

Try not to chase perfection because there will always be a plate that can't be read.