Patent ID: 11900644
Assignee: RAKUTEN GROUP, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A document image analysis apparatus, comprising:
at least one memory configured to store program code; and
electronic circuitry including at least one of a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), and at least one processor, the at least one processor being configured to read and operate according to the program code, the electronic circuitry configured to:
acquire a document image having an article, the article having at least a title and a column;
detect a plurality of regions from the document image acquired, the plurality of regions representing respective portions of the article;
classify the plurality of regions into any of a plurality of classes;
cluster the plurality of regions detected to integrate into a cluster that corresponds to a single article;
classify regions belonging to a single cluster into any of a plurality of super-classes based on the classified classes of the regions, wherein the plurality of super-classes comprises a title region, a column region and an illustration region;
sort the classified regions within each of the plurality of super-classes and across the plurality of super-classes; and
assign, within a single cluster, a reading order to at least some of the sorted classified regions, the reading order being an order in which the plurality of regions are to be read in the article.