avlab-cv / aolp

Application-Oriented License Plate Recognition (Website)

By Hsu, Gee-Sern and Chen, Jiun-Chang and Chung, Yu-Zu

AOLP contains 2,049 images, with various locations, time, tracffic, and weather conditions. The whole dataset is categorized into three subsets, and each subset offers a good scope of samples to represent one of the three major applications (i.e., access control, law enforcement and road patrol).

• Access control refers to the cases that a vehicle passes a fixed passage at a reduced speed or with a full stop, such as at a toll station or the entrance/exit of a region.
• Traffic law enforcement refers to the cases that a vehicle travels at a regular or higher speed but violates traffic laws, such as a traffic signal or speed limit, and is captured by a roadside camera. 757 images were collected for this application category.
• Road patrol refers to the cases that the camera is installed or handheld on a patrolling vehicle which takes images of the vehicles with arbitrary viewpoints and distances.

We hope that the AOLP database could revolutionized the landscape of license plate research, and serve as a fair comparison dataset to facilitate future studies of license plate recognition. A detailed introduction of AOLP can be found in the paper.

Here are some examples from the dataset.

Update

Date	Updata
2019-12-20	Move the dataset download link to Google
2013-03-20	AOLP is composed and made available to the research community.

Data Download

1. Get a password
2. Restriction
3. Download Link

How to get a Password

Please send an e-mail to the database administrator and cc. to Prof. Gee-Sern (Jison) Hsu to receive the passcode to unlock the zipped database. Your Email MUST be sent from a valid University account and include the following request forms:

Subject: Application to download the AOLP database
Name: <your first and last name>
Affiliation: <University where you work>
Department: <your department>
Current position: <your job title>
Email: <must be the email at the above mentioned institution>
Postal Address:
Phone number:
I have read and agreed to follow the restrictions specified in the AOLP database webpage. This database will only be used for research purposes. I will not make any part of this database available to a third party. I'll not sell any part of this database or make any profit from its use.
<your signature>

In general, a password will take 3-7 workdays to issue. To avoid problems with our spam filter, make sure that your email is sent from an .edu (or similar) address. Failure to follow the instruction may result in no response.

Database administrator: [email protected]

Prof. Hsu's e-mail: [email protected]

Restriction

To guarantee the proper use of this database, the following restrictions must be followed by any person who has downloaded the database.

1. All submissions, publications, and works that use or talk about the AOLP database must cite the paper.
2. Permission is NOT granted to reproduce or distribute the database.
3. Written permission must be approved by Prof. Gee-Sern Hsu if a faculty member desires to share the database with her/his co-workers or students. Even then, the database cannot be posted on a webpage accessible from outside the faculty research group.
4. No economical profit can be made from this database.

No country or institution is excluded of any of the above restrictions. Failure to follow the restrictions will be legally prosecuted.

Download Link

AOLP Download Link

Citation and Contact

If you like our work or find AOLP dataset useful, please cite the following paper：

Any suggestion or comment would be valuable. Please send an email to corresponding author (Gee-Sern Hsu) or Database administrator.

@article{hsu2012application,
  title={Application-oriented license plate recognition},
  author={Hsu, Gee-Sern and Chen, Jiun-Chang and Chung, Yu-Zu},
  journal={IEEE transactions on vehicular technology},
  year={2012},
}