Evaluation of an LPR-Based Toll Enforcement System on Portuguese Motorways

Author

Silva, Jorge G. ; Marques, Gonçalo C. ; Jorge, Pedro M. ; Abrantes, Arnaldo J. ; Osorio, A.L. ; Gomes, Jorge S. ; Braga, José C.

Author_Institution

DEETC, ISEL, Lisbon

fYear

2006

fDate

17-20 Sept. 2006

Firstpage

719

Lastpage

724

Abstract

This paper presents an approach for evaluating video-based enforcement systems for motorway toll collection, which has been applied to the case of Portugal´s largest motorway operator, Brisa. The results of this evaluation have contributed to the design of a new LPR system, denoted advanced license plate recognition (ALPR), also described in this paper. The ALPR is currently being deployed not only by Brisa, but also by other operators that use the Via Verde system. A significant decrease in the need for human intervention has been an important improvement, in which the introduction of a tunable and trustable confidence level in the LPR process has played a key part

Keywords

automated highways; image recognition; traffic engineering computing; video signal processing; Brisa; LPR-based toll enforcement system; Portuguese motorways; Via Verde system; advanced license plate recognition; motorway toll collection; video-based enforcement system; Communication system control; Costs; Electronic mail; Humans; Intelligent systems; Licenses; Machine learning; Microwave communication; Microwave frequencies; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Transportation Systems Conference, 2006. ITSC '06. IEEE

Conference_Location

Toronto, Ont.

Print_ISBN

1-4244-0093-7

Electronic_ISBN

1-4244-0094-5

Type

conf

DOI

10.1109/ITSC.2006.1706827

Filename

1706827