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| Scanned English Document Retrieval Based on OCR and Word Shape Coding |
| XIA Yong1,2, DAI Ru-Wei2, XIAO Bai-Hua2, WANG Chun-Heng2 |
1.School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001
2.Key Laboratory of Complex System and Intelligence Science, Institute of Automation, Chinese Academy of Sciences, Beijing 100080 |
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Abstract Two commonly used methods for scanned document retrieval are analyzed, namely retrieval based on optical character recognition (OCR) and retrieval based on word shape coding. A new strategy of combining these two methods based on recognition confidence is given. Furthermore, a new way for word shape coding based on typographic feature and stroke is presented and it is tolerant to fonts. Experiments are conducted based on different word indexing and the results verify the validity of the proposed method.
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Received: 30 June 2008
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2009, Vol. 22 
