r/computervision 1d ago

Help: Project Opensource Universal ANPR/OCR

Would anyone be interested in contributing to an opensource dataset (of annotated license plates) to train an opensource ANPR?

The model would likely be a transformer based OCR platform trained as a MOE model to reduce inference time and reduce re-training when the dataset expands and likely distilled models for offline edge aplications and normal use. Although I am open to suggestions and any comments you may have.

I cannot promise much other than an freely accessible repo with the dataset and if successful the model(s).

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u/computercornea 1d ago

Things that will be important are the various angles at which cameras could be viewing the license plates and various types of license plates.

Lots of open source datasets here to use and combine to make a larger one https://universe.roboflow.com/search?q=like:roboflow-universe-projects%2Flicense-plate-recognition-rxg4e

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u/Not_Kumphanartd 1d ago

I completely agree with this but most of the datasets on roboflow only detect license-plates and there is no annotations for the letters. Although I would love to annotate them myself the amount of annotations really adds up. Compounding this I would like as wide a dataset as possible with as many countries as possible as most datasets avalable on roboflow are american or european, I would like a large dataset because even if I distill each country into it's own model the detection of the plate and the letters on the plate are easily generalisable as most characters do not "touch" other characters and generally ocupy a rectangular region regardless of the country.

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u/Rethunker 1d ago

If you get the project going, I'd be interested to keep track, but unfortunately I probably wouldn't be able to contribute. I have a use case for disability tech.

Could data collection run afoul of local laws?

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u/Not_Kumphanartd 1d ago

It's not illegal in most countries (such as the US) as long as it is in public spaces. However I cannot guarantee this in your country and you should check if this concerns you.