Evaluating Automatic License Plate Recognition (ALPR) Systems

Many license plates. Photo by Susan Kirsch on Unsplash

Background

Overview of ALPR

Source: Wikimedia Commons
Source: Wikimedia Commons; copyright 2006, Achim Raschka

Commercial Models

Data

Photo by Tehreek Dawat e Faqr on Flickr, CC BY 2.0
Source: pxfuel

Evaluation Metrics

Observations:

Detecting vehicle characteristics and license plates. Source: https://www.goodfreephotos.com
Fire hydrant and car with non latin characters. Photo by Chaewon Lee on Unsplash

Non-standard plate configurations confound the models

Car with multiple plates. Source: Wikipedia

What’s Next

About the Author

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