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OCR System for Poor Quality Images Using Chain-Code Representation

Research Authors
Ali H. Ahmed, Mahmoud Afifi , Mostafa Korashy, Ebram K. William, Mahmoud Abd El-sattar, Zenab Hafez
Research Department
Research Journal
Advances in Intelligent Systems and Computing
Research Rank
3
Research Publisher
Springer
Research Vol
Vol 407
Research Website
http://link.springer.com/chapter/10.1007/978-3-319-26690-9_14
Research Year
2015
Research_Pages
151-161
Research Abstract

Abstract
The field of Optical Character Recognition (OCR) has gained more attention in the recent years because of its importance and applications. Some examples of OCR are: video indexing, references archiving, car-plate recognition, and data entry. In this work a robust system for OCR is presented. The proposed system recognizes text in poor quality images. Characters are extracted from the given poor quality image to be recognized using chain-code representation. The proposed system uses Google online spelling to suggest replacements for words which are misspelled during the recognition process. For evaluating the proposed system, the born-digital dataset ICDAR is used. The proposed system achieves 74.02 % correctly recognized word rate. The results demonstrate that the proposed system recognizes text in poor quality images efficiently.