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

Claim 18:
19. A document image analysis method executed by a document image analysis apparatus, comprising:
acquiring a document image having an article, the article having at least a title and a column;
detecting a plurality of regions from the document image acquired, the plurality of regions representing respective portions of the article;
classifying the plurality of regions into any of a plurality of classes;
clustering the plurality of regions detected to integrate into a cluster that corresponds to a single article;
classifying 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;
sorting the classified regions within each of the plurality of super-classes and across the plurality of super-classes; and
assigning, 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.