Open AccessA Novel Character Segmentation Method for Text Images Captured by Cameras
Author(s) -
Lue HsinTe,
Wen MingGang,
Cheng HsuYung,
Fan KuoChin,
Lin ChihWei,
Yu ChihChang
Publication year - 2010
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.10.1510.0086
Subject(s) - character (mathematics) , computer science , artificial intelligence , segmentation , computer vision , optical character recognition , translation (biology) , context (archaeology) , mobile device , image segmentation , image (mathematics) , pattern recognition (psychology) , mathematics , geometry , paleontology , biochemistry , chemistry , biology , messenger rna , gene , operating system
Due to the rapid development of mobile devices equipped with cameras, instant translation of any text seen in any context is possible. Mobile devices can serve as a translation tool by recognizing the texts presented in the captured scenes. Images captured by cameras will embed more external or unwanted effects which need not to be considered in traditional optical character recognition (OCR). In this paper, we segment a text image captured by mobile devices into individual single characters to facilitate OCR kernel processing. Before proceeding with character segmentation, text detection and text line construction need to be performed in advance. A novel character segmentation method which integrates touched character filters is employed on text images captured by cameras. In addition, periphery features are extracted from the segmented images of touched characters and fed as inputs to support vector machines to calculate the confident values. In our experiment, the accuracy rate of the proposed character segmentation system is 94.90%, which demonstrates the effectiveness of the proposed method.