Patent ID: 9727536
Date: 2017-08-08
CPC Classifications: G06F,G06K

Claim:
1. A logic process method for composite graphs in a fixed layout document, characterized in comprising steps of: extracting composite graph blocks from the fixed layout document; extracting legend primitives from the text primitives that are obtained through parsing the fixed layout document; acquiring feature property information of the composite graph blocks to classify elements contained in the composite graph blocks to generate a classification result; according to the classification result, preserving text illustration composite graphs of the composite graph blocks and filtering other elements for a detection of correlations between the text illustration composite graphs and the legend primitives; detecting correlations between the composite graph blocks and the legend primitives; and storing the detected correlations, wherein the step of detecting correlations between the composite graph blocks and the legend primitives comprises: in the case of merely one text illustration composite graph included in the composite graph blocks, selecting a legend primitive having a distance to the text illustration composite graph less than a predetermined space as the legend primitive correlated to the text illustration composite graph; and in the case of multiple text illustration composite graphs comprised in the composite graph blocks, taking the multiple text illustration composite graphs and all legend primitives obtained through parsing as vertices of a bigraph to determine correlations between the multiple text illustration composite graphs and the legend primitives based on the bigraph.