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Author:Räty, Jani
Title:Number plate recognition
Publication type:Master's thesis
Publication year:2010
Pages:[9] + 56      Language:   eng
Department/School:Informaatio- ja luonnontieteiden tiedekunta
Main subject:Informaatiotekniikka   (T-115)
Supervisor:Simula, Olli
Instructor:Laine, Antti
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto  8752   | Archive
Keywords:convolution
edge detection
Hough-transform
neural network
number plate recognition
konvoluutio
reunan tunnistus
Hough-muunnos
neuraaliverkko
rekisterikilven tunnistus
Abstract (eng): This paper presents a method for number plate recognition.
Plate localization is based on edge detection and Hough transform of the plate in iterative manner.
Recognition of the individual characters is based on neural networks taught with template images of the characters.
Test image database contains about 2000 images taken from parking halls.
Recognition accuracy for such images was 95 %.
Abstract (fin): Diplomityö kuvaa tavan tunnistaa rekisterikilpiä.
Kilven paikallistaminen on toteutettu reunan tunnistuksella, sekä Hough-muunnoksella, jotka suoritetaan kuvalle toistuvasti.
Yksittäisten kirjainten tunnistus suoritetaan neuraaliverkolla, joka on opetettu sapluunakuvilla kirjaimista.
Kuvatietokanta sisältää noin 2000 kuvaa, jotka ovat otettu pysäköintihalleista.
Saavutettu tunnistustarkkuus kyseisillä kuvilla oli 95 %.
ED:2010-07-12
INSSI record number: 39902
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