EXTRACTION DEVICE FOR COMPOSITE GRAPH IN FIXED LAYOUT DOCUMENT AND EXTRACTION METHOD THEREOF
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United States of America Patent
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Feb 12, 2015
app pub date -
Dec 12, 2013
filing date -
Aug 8, 2013
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Abstract
An extraction device for the composite graph in a fixed layout document comprising: a document parsing unit, for parsing the fixed layout document, and determining the primitives of the fixed layout document and their types; a layer generation unit, for extracting text primitives so as to form a text layer, and using the rest non-text primitives to form a non-text layer; a page analysis unit, for processing the text layer and the non-text layer with page analyses respectively; a block generation unit, for generating a text block in the text layer and a graph block in the non-text layer; a correlation block determination unit, for determining text blocks correlating to every graph block and merging those correlated text blocks and graph blocks into a composite graph block; an identifier storage unit, for storing the identifiers of all the primitives contained in the composite graph block.
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