Automatic License Plate Recognition System Prototype

Design Criteria & Limitations:

What are the problems?

1. Non-gate controlled so anyone can enter and park

2. Central Downtown High School so accessible to anyone to park

3. Regulated on a first-come-first-serve basis because of limited parking spots so students often have no place to park

Field Research:

User Research of 3 Focus Groups

1. Students (31 surveyed)

2. Student Administration

3. Parents

The Design (4-Step Process):

1. Acquired the images of 30 car license plates using a camera at a specific camera positioning

2. Extracted the license plate from the image based on the boundary of the plate and the recognition of the existence of numbers of letters

3. Plate Localization: Isolating the plate on the picture

4.  Character Segmentation and Recognition: Finding the individual characters through image binarization

• ALPR algorithm implemented using OpenCV and C++