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O.O. Petrova, K.B. Bulatov Methods of machine-readable zone recognition results post-processing |
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Abstract. In this paper a task of correction (post-processing) of machine-readable zone recognition results is discussed. A survey is presented for existing approaches of recognition error correction methods and an algorithm is proposed for applying these methods for machine-readable zone post-processing. Experimental results are shown for the described methods. Keywords: documents recognition, MRZ, recognition results correction. PP. 43-50. DOI: 10.14357/20790279180505 References 1. Bessmeltsev V., Bulushev E., Goloshevsky N. High-speed OCR algorithm for portable passport readers// Graphicon’11. 2011. P. 25–29. 2. Slugin D.G. Properties of context-based recognition of Russian international passport in Cognitive Passport. // Proc. ISA RAS, V. 45, 2009. P.174-182. 3. Sholomov D.L., Postnikov V.V., Marchenko A.A., Uskov A.V. Post-processing of OCR Results Using Automatically Constructed Partially Defined Syntax. // Proceedings of the Institute for System Analysis RAS, Vol. 16. pp. 146-163, 2005. 4. ICAO Doc 9303 Part 3: Specifications Common to all MRTDs. 2015. Machine Readable Travel Documents – International Civil Aviation Organization. 5. Bouchaffra D., Govindaraju V., Srihari S. N. Postprocessing of Recognized Strings Using Nonstationary Markovian Models // IEEE Transactions on Pattern Analysis and Machine Intelligence. 1997. V. 21. № 10, Р. 990–999. 6. Kukich K. Techniques for Automatically Correcting Words in Text // ACM computing survey, Computational Linguistics. 1992. V. 24. № 4, Р. 377–439. 7. Youssef Bassil, Mohammad Alwani. OCR postprocessing error correction algorithm using Google’s online spelling suggestion. // Journal of Emerging Trends in Computing and Information Sciences, 3(1): 90–99. 8. Bulatov K.B., Nikolaev D.P., Postnikov V.V. General-purpose algorithm for text field OCR result post-processing based on validation grammars // Proceedings of the Institute for System Analysis RAS, Vol. 65(4). pp. 68-73, 2015. 9. Mercer J. Errors in travel documents. // Keesing Journal of Documents& Identity, issue 34, Feb 2011. Available at: http://keesingjournalofdocuments.com/content/Cases_analysed/KJDI_2011_34_ Mercer.pdf (accessed June 22, 2018). 10. Bulatov K.B., Polevoy D.V., Ilin D.A., Chernyshova Y.S. Problems of machine-readable zone recognition captured with digital mobile cameras//Proceedings of the Institute for System Analysis RAS, Vol. 65(3). pp. 85-93, 2015. 11. Arlasarov V.V., Zhukovsky A.E., Krivtsov V.E., Nikolaev D.P., Polevoy D.V. Analysis of features of the use of fixed and mobile small-sized digital video camera for OCR // Proceedings of the Institute for System Analysis RAS, Vol. 64(3). pp. 71-81, 2014. 12. Dong Xiao Ni. Application of Neural Networks to Character Recognition // Proceedings of Students/ Faculty Research Day, CSIS, Pace University, May 4th, 2007.
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