PDF-TREX: An Approach for Recognizing and Extracting Tables from PDF Documents

This paper presents PDF-TREX, an heuristic approach for table recognition and extraction from PDF documents.The heuristics starts from an initial set of basic content elements and aligns and groups them, in bottom-up way by considering only their spatial features, in order to identify tabular arrang...

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Bibliographic Details
Published in2009 10th International Conference on Document Analysis and Recognition pp. 906 - 910
Main Authors Oro, E., Ruffolo, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2009
Subjects
Councils
Data mining
Document Analysis
Encoding
Hierarchical Clustering
High performance computing
HTML
Humans
Information Extraction
Layout
Table Recognition and Extraction
Text analysis
Visualization
XML
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Summary:This paper presents PDF-TREX, an heuristic approach for table recognition and extraction from PDF documents.The heuristics starts from an initial set of basic content elements and aligns and groups them, in bottom-up way by considering only their spatial features, in order to identify tabular arrangements of information. The scope of the approach is to recognize tables contained in PDF documents as a 2-dimensional grid on a Cartesian plane and extract them as a set of cells equipped by 2-dimensional coordinates. Experiments, carried out on a dataset composed of tables contained in documents coming from different domains, shows that the approach is well performing in recognizing table cells.The approach aims at improving PDF document annotation and information extraction by providing an output that can be further processed for understanding table and document contents.
ISBN:1424445000
9781424445004
ISSN:1520-5363
2379-2140
DOI:10.1109/ICDAR.2009.12