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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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