Automatic license plate recognition

Author

Devi, D. Renuka ; Kanagapushpavalli, D.

fYear

2011

fDate

8-9 Dec. 2011

Firstpage

75

Lastpage

78

Abstract

License plate recognition (LPR) is a technology that enables computer systems to read automatically the registration number (license number) of vehicles from digital pictures. This paper deals with the recognition of Indian car license plate recognition. The LPR system consists of four steps Plate Localization, Preprocessing, Segmentation and Normalization and Optical Character Recognition (OCR). Morphological operator is applied to the image to identify the plate location. Then the plate region is then preprocessed by applying the histogram equalization technique. The smearing and morphological algorithms are used to segment the characters and the segmented result is normalized and fed to the OCR part. The characters are then recognized using the template matching algorithm.

Keywords

image matching; image segmentation; mathematical morphology; mathematical operators; optical character recognition; Indian car license plate recognition; LPR system; OCR part; automatic license plate recognition; computer system; digital pictures; histogram equalization technique; image normalization; image preprocessing; image segmentation; morphological algorithm; morphological operator; optical character recognition; plate localization; plate location; plate region; registration number; smearing algorithm; template matching algorithm; Noise; Optical character recognition software; Optical imaging; License plate recognition; Optical Character Recognition; segmentation; template matching;

fLanguage

English

Publisher

ieee

Conference_Titel

Trendz in Information Sciences and Computing (TISC), 2011 3rd International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4673-0134-3

Type

conf

DOI

10.1109/TISC.2011.6169088

Filename

6169088