Wondering if anyone is using multiple cameras to improve the recognition of plates?
We have both front and rear plates where I am, often the front pates can be damaged and difficult to fully read.
In other cases, when looking at a vehicle from the rear they may have a trailer hitch or bike mounting equipment that partly blocks the plate.
Here is a sample of another trouble plate.

I am using OpenALPR and it got this plate incorrect. It identified the plate as AE7988. Certainly understandable.
Here is the same plate from the back.

From the back it gets the plate correctly.
These are two photos of the same vehicle, but using a single camera.
If I had two cameras, one that caught the vehicle as it approached and one camera that caught the back as it drove past then I think OpenALPR would have more data to work with.
I noticed under the advanced settings of OpenALPR, it uses plate grouping. It does this by default so it does not have tons of matches to a single plate.
The part that stands out to me is:
plate_groups_span_cameras: combine all reads from all cameras on this agent to one group. this is useful when the cameras are viewing the same vehicles at the same time.
This sounds great to me, so if I had a two camera setup watching traffic on the road then it should be able to supplement data from both angles to get improve plate accuracy.
Has anyone tried this?
We have both front and rear plates where I am, often the front pates can be damaged and difficult to fully read.
In other cases, when looking at a vehicle from the rear they may have a trailer hitch or bike mounting equipment that partly blocks the plate.
Here is a sample of another trouble plate.

I am using OpenALPR and it got this plate incorrect. It identified the plate as AE7988. Certainly understandable.
Here is the same plate from the back.

From the back it gets the plate correctly.
These are two photos of the same vehicle, but using a single camera.
If I had two cameras, one that caught the vehicle as it approached and one camera that caught the back as it drove past then I think OpenALPR would have more data to work with.
I noticed under the advanced settings of OpenALPR, it uses plate grouping. It does this by default so it does not have tons of matches to a single plate.
The part that stands out to me is:
plate_groups_span_cameras: combine all reads from all cameras on this agent to one group. this is useful when the cameras are viewing the same vehicles at the same time.
This sounds great to me, so if I had a two camera setup watching traffic on the road then it should be able to supplement data from both angles to get improve plate accuracy.
Has anyone tried this?