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Boosting Optical Character Recognition: A Super-Resolution Approach
June 07, 2015 Β· Declared Dead Β· π arXiv.org
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Authors
Chao Dong, Ximei Zhu, Yubin Deng, Chen Change Loy, Yu Qiao
arXiv ID
1506.02211
Category
cs.CV: Computer Vision
Citations
63
Venue
arXiv.org
Last Checked
5 months ago
Abstract
Text image super-resolution is a challenging yet open research problem in the computer vision community. In particular, low-resolution images hamper the performance of typical optical character recognition (OCR) systems. In this article, we summarize our entry to the ICDAR2015 Competition on Text Image Super-Resolution. Experiments are based on the provided ICDAR2015 TextSR dataset and the released Tesseract-OCR 3.02 system. We report that our winning entry of text image super-resolution framework has largely improved the OCR performance with low-resolution images used as input, reaching an OCR accuracy score of 77.19%, which is comparable with that of using the original high-resolution images 78.80%.
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