A METHOD FOR SEGMENTING AND RECOGNIZING A VEHICLE LICENCE PLATE FROM A ROAD IMAGE

Abdelhalim Boutarfa, Mahfoud Hamada, Emptoz Hubert

2010

Abstract

To solve the problems of heavy traffic, due to the increase in the number of vehicles, modern cities need to establish effectively automatic systems for traffic monitoring and management. One of the most useful systems is the License-Plate Recognition System which captures images of vehicles and reads the plate’s registration numbers automatically. Our method in this paper presents a robust algorithm for segmenting and recognizing a vehicle license plate area from a road image. As preprocessing steps, we statistically analyze the features of some sample plate images, and compute thresholds for each feature to decide whether a pixel is inside a plate or we cannot decide it. Our methodology starts from constructing the binary version of a road image according to the thresholds. Then, we select at most three strong candidate areas by searching the binary image with a moving window. The plate area is selected among the candidates with simple heuristics. Our algorithm is stable and robust against the cases of plate transformation and/or decolorization. The experimental results show 98.05% of successful plate recognition for 256 input images.

Paper Citation

in Harvard Style

Boutarfa A., Hamada M. and Hubert E. (2010). A METHOD FOR SEGMENTING AND RECOGNIZING A VEHICLE LICENCE PLATE FROM A ROAD IMAGE . In Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2010) ISBN 978-989-674-029-0, pages 413-419. DOI: 10.5220/0002840004130419

in Bibtex Style

@conference{visapp10,
author={Abdelhalim Boutarfa and Mahfoud Hamada and Emptoz Hubert},
title={A METHOD FOR SEGMENTING AND RECOGNIZING A VEHICLE LICENCE PLATE FROM A ROAD IMAGE},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2010)},
year={2010},
pages={413-419},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002840004130419},
isbn={978-989-674-029-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2010)
TI - A METHOD FOR SEGMENTING AND RECOGNIZING A VEHICLE LICENCE PLATE FROM A ROAD IMAGE
SN - 978-989-674-029-0
AU - Boutarfa A.
AU - Hamada M.
AU - Hubert E.
PY - 2010
SP - 413
EP - 419
DO - 10.5220/0002840004130419