International Journal of Networked and Distributed Computing

Volume 7, Issue 2, April 2019, Pages 59 - 67

Character Segmentation and Recognition for Myanmar Warning Signboard Images

Authors
Kyi Pyar Zaw1, *, Zin Mar Kyu2
1Faculty of Computer Science Department, University of Computer Studies, Mandaly, Patheingyi, Mandalay 1001, Myanmar
2Faculty of Computer Science Department, University of Computer Studies, Mandaly, Patheingyi, Mandalay 1001, Myanmar
*Corresponding author. Email: kyipyarzaw08@gmail.com
Corresponding Author
Kyi Pyar Zaw
Received 7 November 2018, Accepted 16 January 2019, Available Online 16 April 2019.
DOI
https://doi.org/10.2991/ijndc.k.190326.002How to use a DOI?
Keywords
Character extraction, character segmentation, character recognition, template matching
Abstract

This paper publicizes the character segmentation and recognition of the Myanmar warning text signboard images taken by a mobile phone camera in natural scene. In this system, two templates are created. The first template that contains both connected pixel words and characters are used for character segmentation and the second template that contains only the connected pixel characters are used for character classification. Color enhancement process is first performed to extract the text regions. By preprocessing the color enhancement, the system can overcome the some illumination conditions. To remove the background noises on the binary images, color threshold based filtering, aspect ratio based filtering, boundary based filtering and region area based filtering techniques are used. As a next step, line segmentation and character segmentation are done. Line segmentation is performed using horizontal projection profile and character segmentation is done using vertical projection profile and bounding box methods. In the character segmentation process, template matching method is used by training connected pixel words. These connected component characters are recognized using 4 × 4 blocks based pixel density and total chain codes, four rows-based pixel density, four columns-based pixel density and count of eight directions chain code on the whole character image and on each block of character image. This system is investigated by feature-based approach of template matching on 160 camera-captured Myanmar warning signboards.

Copyright
© 2019 The Authors. Published by Atlantis Press SARL.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/).

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Journal
International Journal of Networked and Distributed Computing
Volume-Issue
7 - 2
Pages
59 - 67
Publication Date
2019/04/16
ISSN (Online)
2211-7946
ISSN (Print)
2211-7938
DOI
https://doi.org/10.2991/ijndc.k.190326.002How to use a DOI?
Copyright
© 2019 The Authors. Published by Atlantis Press SARL.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - JOUR
AU  - Kyi Pyar Zaw
AU  - Zin Mar Kyu
PY  - 2019
DA  - 2019/04/16
TI  - Character Segmentation and Recognition for Myanmar Warning Signboard Images
JO  - International Journal of Networked and Distributed Computing
SP  - 59
EP  - 67
VL  - 7
IS  - 2
SN  - 2211-7946
UR  - https://doi.org/10.2991/ijndc.k.190326.002
DO  - https://doi.org/10.2991/ijndc.k.190326.002
ID  - Zaw2019
ER  -