Trigger issues

L

Lieberkind

Getting the hang of it
Dec 16, 2021
89
26
Denmark
Hello

Questions from a newbie.

I have a IPC-HFW2231T-ZS-S2 for capturing license plates 24/7. At day there is no problem triggering camera. But at night it is not very often i get images from camera.

The camera is set up 10-20% perpendicular to plates. and it is places 2,5m from ground and up.

The image from the camera are pitch black, perhaps this is the problem triggering a snapshot? (Shutter 1/2000)

What am I doing wrong?

I am considdering Blue iris as NVR.

These images are with shutter at 1/50.

1.jpg.png2.png
 
IVS is great, but for LPR at night it will not work.

For IVS to work, the camera needs to be able to see the object, compare it to its AI and decide if it meets the criteria.

Since the shutter has to be ran fast (1/2000) and we are zoomed in so tight,, all that the camera sees is head/tail lights and the plate, and that is not enough for the camera to determine the object.

So between the vehicle not being in the field of view long enough and not seeing the whole car, IVS will struggle for LPR duty.
 
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wittaj said:
IVS is great, but for LPR at night it will not work.

For IVS to work, the camera needs to be able to see the object, compare it to its AI and decide if it meets the criteria.

Since the shutter has to be ran fast (1/2000) and we are zoomed in so tight,, all that the camera sees is head/tail lights and the plate, and that is not enough for the camera to determine the object.

So between the vehicle not being in the field of view long enough and not seeing the whole car, IVS will struggle for LPR duty.
Click to expand...

What is the right way to trigger then?

BR
 
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