Title
A Holistic Technique for an Arabic OCR System.
Abstract
Analytical based approaches in Optical Character Recognition (OCR) systems can endure a significant amount of segmentation errors, especially when dealing with cursive languages such as the Arabic language with frequent overlapping between characters. Holistic based approaches that consider whole words as single units were introduced as an effective approach to avoid such segmentation errors. Still the main challenge for these approaches is their computation complexity, especially when dealing with large vocabulary applications. In this paper, we introduce a computationally efficient, holistic Arabic OCR system. A lexicon reduction approach based on clustering similar shaped words is used to reduce recognition time. Using global word level Discrete Cosine Transform (DCT) based features in combination with local block based features, our proposed approach managed to generalize for new font sizes that were not included in the training data. Evaluation results for the approach using different test sets from modern and historical Arabic books are promising compared with state of art Arabic OCR systems.
Year
DOI
Venue
2018
10.3390/jimaging4010006
JOURNAL OF IMAGING
Keywords
Field
DocType
Arabic OCR systems,holistic OCR approach,holistic OCR features,lexicon reduction
Point (typography),Computer vision,Cursive,Segmentation,Discrete cosine transform,Optical character recognition,Lexicon,Natural language processing,Artificial intelligence,Cluster analysis,Vocabulary,Mathematics
Journal
Volume
Issue
Citations 
4
1
0
PageRank 
References 
Authors
0.34
5
5
Name
Order
Citations
PageRank
Farhan M. A. Nashwan100.34
Mohsen Rashwan23110.36
Hassanin Al-Barhamtoshy353.11
Sherif Abdou48613.33
Abdullah M. Moussa500.34