Authors:
Balázs Enyedi
1
;
Lajos Konyha
1
;
Kálmán Fazekas
1
and
Ján Turán
2
Affiliations:
1
Budapest University of Technology and Economics, Hungary
;
2
University of Technology Košice, Slovak Republic
Keyword(s):
License plate, character recognition, syntax of license plate, geometry.
Related
Ontology
Subjects/Areas/Topics:
Image and Video Processing, Compression and Segmentation
;
Multimedia
;
Multimedia Signal Processing
;
Telecommunications
Abstract:
License plate recognition solutions to date are numerous and quite diverse. It is a complex problem field that can clearly be separated into two areas: localizing the actual license plate number and recognizing individual characters. Current professional literature devotes relatively small attention to individual steps of character recognition, which is exacerbated by the fact that the vast majority of solutions result in severe data losses due to inconsiderate discarding of information that could significantly enhance the accuracy of the end result that is, improve recognition reliability. Certain letters and numbers are very easy to mistake for one another, and some solutions focus too heavily on attempting to differentiate between them, complicating the recognition algorithm and possibly unnecessarily increasing its computation requirements. Instead, retaining certain information can result in much faster and more accurate recognition algorithms. This paper describes tricks to enh
ance accuracy and presents the points of potential significant data losses during the recognition process. The solutions described here are applicable along with any recognition algorithm, enhancing its accuracy and reliability.
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