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NVIDIA-AI-IOT / deepstream_lpr_app

Sample app code for LPR deployment on DeepStream
MIT License
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Are spaces detectable? #39

Open neilyoung opened 5 months ago

neilyoung commented 5 months ago

This image is misleading:

image

In fact this plate would be detected as NV12345. Note the missing “spaces”. This might not be an issue for US plates, but it is for EU.

I tried the model with an EU (German) video feed. I was surprised, that it perfectly detects EU number plates, but it has a big problem: The loss of the “spaces” causes ambiguities.

For instance: A Berlin number plate can look like so: “B NO 1234”. A Bonn number plate could look like so “BN O 1234”. Due to the loss of “spaces” both are indicated as “BNO1234” which is ambiguous.

Is there anything which can be done to tackle this?

neilyoung commented 5 months ago

To answer myself: No spaces are not detectable and that rules out this model for the entire EU