23 January 2012 Chemical structure recognition: a rule-based approach
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In chemical literature much information is given in the form of diagrams depicting molecules. In order to access this information diagrams have to be recognised and translated into a processable format. We present an approach that models the principal recognition steps for molecule diagrams in a strictly rule based system, providing rules to identify the main components - atoms and bonds - as well as to resolve possible ambiguities. The result of the process is a translation into a graph representation that can be used for further processing. We show the effectiveness of our approach by describing its embedding into a full recognition system and present an experimental evaluation that demonstrates how our current implementation outperforms the leading open source system currently available.
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Noureddin M. Sadawi, Noureddin M. Sadawi, Alan P. Sexton, Alan P. Sexton, Volker Sorge, Volker Sorge, } "Chemical structure recognition: a rule-based approach", Proc. SPIE 8297, Document Recognition and Retrieval XIX, 82970E (23 January 2012); doi: 10.1117/12.912185; https://doi.org/10.1117/12.912185

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