Patent ID: 8131720
Filing Date: 2012-03-06
Classification: G06F,G06K

Abstract:
1. A system comprising: a processor; an input for receiving a query; and a memory arranged to store executable instructions arranged to cause the processor to: convert the query into an image; perform a comparison between elements in the image to a cluster table associated with a font, the cluster table defining mappings between image elements and identifiers associated with the image elements; create a query defined in terms of identifiers based on the comparison between elements of the image and the cluster table associated with the font; and search an index of identifiers created from at least one document image using the query defined in terms of identifiers based on the comparison between elements of the image and the cluster table associated with the font; divide text in an image of a document into a plurality of elements; arrange the plurality of elements into clusters of similar elements; allocate a unique one of the identifiers to each cluster; order the identifiers according to an order of a language of each page of the text; replace each element in the image of the document with one or more identifiers, one of the one or more identifiers comprising the identifier corresponding to the unique identifier of the cluster comprising the element; and create an index of identifiers in the image of the document.