A novel approach for license plate location in natural images

A novel approach for license plate location in natural images

Extraction of the license plate region is challenging first step in the license plate recognition system. The paper proposed approach is not only simple but also more effective than some of the existing method earlier. A new dynamic RGB threshold formula by limiting the hue change range is educed. T...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Hongyao, Deng, Xiuli, Song
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Character recognition
Color
Computer science
Image processing
Image recognition
Image segmentation
License plate recognition
Morphology
Neural networks
Vehicle dynamics
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Beschreibung
Zusammenfassung:Extraction of the license plate region is challenging first step in the license plate recognition system. The paper proposed approach is not only simple but also more effective than some of the existing method earlier. A new dynamic RGB threshold formula by limiting the hue change range is educed. The license image is made grids. Then we can plot and mark them by the formula and operate them with mathematical morphology because of precision-cutting the license knowledge. More than five hundred images are tested, none of the results manifested missed. Only 1 candidate-absented plate had been got. Plates were extracted and a 99% rate was achieved.
DOI:10.1109/ICADIWT.2009.5273920