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Issue No.01 - January (2005 vol.27)
pp: 23-35
Marco Gori , IEEE
Giovanni Soda , IEEE Computer Society
ABSTRACT
Artificial neural networks have been extensively applied to document analysis and recognition. Most efforts have been devoted to the recognition of isolated handwritten and printed characters with widely recognized successful results. However, many other document processing tasks, like preprocessing, layout analysis, character segmentation, word recognition, and signature verification, have been effectively faced with very promising results. This paper surveys the most significant problems in the area of offline document image processing, where connectionist-based approaches have been applied. Similarities and differences between approaches belonging to different categories are discussed. A particular emphasis is given on the crucial role of prior knowledge for the conception of both appropriate architectures and learning algorithms. Finally, the paper provides a critical analysis on the reviewed approaches and depicts the most promising research guidelines in the field. In particular, a second generation of connectionist-based models are foreseen which are based on appropriate graphical representations of the learning environment.
INDEX TERMS
Character segmentation, document image analysis and recognition, layout analysis, neural networks, preprocessing, recursive neural networks, word recognition.
CITATION
Simone Marinai, Marco Gori, Giovanni Soda, "Artificial Neural Networks for Document Analysis and Recognition", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.27, no. 1, pp. 23-35, January 2005, doi:10.1109/TPAMI.2005.4
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