Blue Iris Version 6 License Plate Custom Model

MikeLud1

MikeLud1

IPCT Contributor
Apr 5, 2017
2,787
4,898
Brooklyn, NY
After using the built-in ALPR I found the model used to detect the license plate did not perform well at night. I trained a new plates.onnx model that performs well now during the day and at night. Below is the link to the new model. To use the new model save the model in folder C:\BlueIris\AI\models. Then after saving the model restart Blue Iris service.

Recommended min confidence setting
Day 80%
Night 85%

 
Last edited:
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Thanks @MikeLud1 this is great! Should I use To confirm: DayPlate,NightPlate for this model like I was doing with your old YOLOv5 license-plate.onnx model?

Also, is this new model now included with BI's downloadable models? I went to copy it into my C:\BlueIris\AI\models directory and there was already a plates.onnx there that I overwrote.
 
aesterling said:
Should I use To confirm: DayPlate,NightPlate for this model like I was doing with your old YOLOv5 license-plate.onnx model?
Click to expand...
No, for a dedicated license plate camera the To confirm should be blank
aesterling said:
Also, is this new model now included with BI's downloadable models?
Click to expand...
No, I am going to let Ken know about this model so he can include it. The model that is include does not perform well at night
 
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Thank you. This is a dedicated LPR with a narrow FOV, so I will give that a try! If I want that camera to only use your new plates.onnx model, how do I exclude the others?

Ken said the "Primary object detection" checkbox should be unchecked in this case:
"The only time you don't want it checked is if you are strictly looking for faces or plates, too zoomed-in to find people or cars."
Click to expand...
I didn't know what that option was for, and it's not explained anywhere in the help file, so I had to ask.
 
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aesterling said:
Thank you. This is a dedicated LPR with a narrow FOV, so I will give that a try! If I want that camera to only use your new plates.onnx model, how do I exclude the others?

Ken said the "Primary object detection" checkbox should be unchecked in this case:

I didn't know what that option was for, and it's not explained anywhere in the help file, so I had to ask.
Click to expand...
Set it like the below

1767126380091.png
 
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@MikeLud1 is this correct too?

I’m getting a bunch of fake confirmations where BI is selecting the incorrect plate even though there are 2/3 later confirmations which have the correct plate with a higher confidence
 

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adventuredphoto said:
@MikeLud1 is this correct too?

I’m getting a bunch of fake confirmations where BI is selecting the incorrect plate even though there are 2/3 later confirmations which have the correct plate with a higher confidence
Click to expand...
This is a Blue Iris issue, you can try the below recommended min confidence settings, it may help

Recommended min confidence setting
Day 80%
Night 85%
 
The new model seems to be working great so far. I have a dedicated LPR camera at my gate and use the license plates to automatically open the gate. The new model recognized the plate but the only way I could get the trigger event was to add "license-plate" in to the to confirm, once I did that the proper events started to trigger in BL again and I now see recognized plates in the confirmed alerts. Thanks for the help with this and hopefully this helps others that are triggering events based on LPR.
 
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I don't even see a path inside C:\BlueIris that has \AI\models ( edit) nevermind found it\created it with the onnx download.
 
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It’s picking up tail lights at plates for me

Happening a lot for me for some reason

Would you happen to have the .pt for this model? Maybe I can add some of my night shots into it. Thanks Mike
 
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adventuredphoto said:
It’s picking up tail lights at plates for me

Happening a lot for me for some reason

Would you happen to have the .pt for this model? Maybe I can add some of my night shots into it. Thanks Mike
View attachment 236374
Click to expand...
I just uploaded it to the below Git Hub repo

github.com

Blue-Iris-Custom-AI-Models/Custom-YOLOv8-11 at main · MikeLud/Blue-Iris-Custom-AI-Models

Blue Iris custom AI models. Contribute to MikeLud/Blue-Iris-Custom-AI-Models development by creating an account on GitHub.
github.com github.com
 
Thank you Mike. I did however it's still reporting both plates to @algertc ALPR Database. I know its a bug and I'm sure it will be fixed eventually.
Its been like 98% good for me, just at night it sometimes picks up the headlights/tail lights
 
adventuredphoto said:
Thank you Mike. I did however it's still reporting both plates to @algertc ALPR Database. I know its a bug and I'm sure it will be fixed eventually.
Its been like 98% good for me, just at night it sometimes picks up the headlights/tail lights
Click to expand...
Maybe this weekend I will try making some changes to the training dataset and retrain the model to hopefully eliminate the detections of headlights & tail lights
 
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This LPR thing is up and down with each new version..

I was getting this and if I put the to confirm as license-plate everything would work.
T-1002 msec [278 msec]

[
{
"api":"alpr",
"found":{
"success":true,
"error":null,
"message":"",
"predictions":[
{
"category":2,
"label":"license-plate",
"plate":"AABBCCDD",
"confidence":0.972608268260956,
"x_min":1674,
"x_max":1799,
"y_min":113,
"y_max":253}
]
,
"count":1,
"moduleId":"plates.onnx",
"executionProvider":"ONNXRunTime: 1 (Microsoft Basic Render Driver)",
"analysisRoundTripMs":259}
}
]


With the latest update I now get this:
T+599 msec [258 msec]

[
{
"api":"alpr",
"found":{
"success":true,
"error":null,
"message":"",
"predictions":[
{
"category":2,
"label":"AABBCCDD",
"confidence":0.9682856798172,
"x_min":1366,
"x_max":1583,
"y_min":421,
"y_max":578,
"plate":"AABBCCDD"}
]
,
"count":1,
"moduleId":"plates.onnx",
"executionProvider":"ONNXRunTime: 1 (Microsoft Basic Render Driver)",
"analysisRoundTripMs":164}
}
]

The plate is the label and the to confirm can't be defined with an always changing plate number as the label. No triggers can happen....
 
AundeeMan said:
This LPR thing is up and down with each new version..

I was getting this and if I put the to confirm as license-plate everything would work
Click to expand...
Hmmm... my "to confirm" field has been blank for months and I'm not seeing any issues with my LPR cameras andI have tried every version since 6.0 was released
 
AundeeMan said:
This LPR thing is up and down with each new version..

I was getting this and if I put the to confirm as license-plate everything would work.
T-1002 msec [278 msec]

[
{
"api":"alpr",
"found":{
"success":true,
"error":null,
"message":"",
"predictions":[
{
"category":2,
"label":"license-plate",
"plate":"AABBCCDD",
"confidence":0.972608268260956,
"x_min":1674,
"x_max":1799,
"y_min":113,
"y_max":253}
]
,
"count":1,
"moduleId":"plates.onnx",
"executionProvider":"ONNXRunTime: 1 (Microsoft Basic Render Driver)",
"analysisRoundTripMs":259}
}
]


With the latest update I now get this:
T+599 msec [258 msec]

[
{
"api":"alpr",
"found":{
"success":true,
"error":null,
"message":"",
"predictions":[
{
"category":2,
"label":"AABBCCDD",
"confidence":0.9682856798172,
"x_min":1366,
"x_max":1583,
"y_min":421,
"y_max":578,
"plate":"AABBCCDD"}
]
,
"count":1,
"moduleId":"plates.onnx",
"executionProvider":"ONNXRunTime: 1 (Microsoft Basic Render Driver)",
"analysisRoundTripMs":164}
}
]

The plate is the label and the to confirm can't be defined with an always changing plate number as the label. No triggers can happen....
Click to expand...
Update to latest version. It’s fixed
 
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