Preprocessing and recognition of characters in container codes

Author

Igual, Ismael Salvador ; Garcia, Gabriela Andreu ; Jiménez, Alberto Pérez

Author_Institution

Departamento de Informatica de Sistemas y Computadores, Univ. Politecnica de Valencia, Spain

Volume

3

fYear

2002

fDate

2002

Firstpage

143

Abstract

Describes the recognition of container code characters. The system has to deal with outdoor images which usually have damaged characters and obtain an answer in real time. A top-hat transformation, equalization and adaptive cropping have been applied to reduce the noise and correct the inclusion box. The training corpus is artificially grown by applying controlled deformations of the samples which increase the recognition rate. Approximated nearest neighbours are used in order to perform a fast search with a large corpus.

Keywords

character recognition; feature extraction; image segmentation; mathematical morphology; noise; adaptive cropping; approximated nearest neighbours; characters recognition; container codes; controlled deformations; damaged characters; equalization; inclusion box correction; noise reduction; outdoor images; preprocessing; recognition rate; top-hat transformation; training corpus; Adaptive equalizers; Automatic control; Character recognition; Containers; Feature extraction; Filters; Image segmentation; Morphological operations; Pattern recognition; Surface morphology;

fLanguage

English

Publisher

ieee

Conference_Titel

Pattern Recognition, 2002. Proceedings. 16th International Conference on

ISSN

1051-4651

Print_ISBN

0-7695-1695-X

Type

conf

DOI

10.1109/ICPR.2002.1047815

Filename

1047815