Blockwise extraction of document metadata

A method comprising:

• obtaining a document image, wherein the document image includes a plurality of objects;
• processing the document image to identify a baseline styling parameter value, the baseline styling parameter value specifying a baseline font height;
• identifying for a plurality of words of a line of text of the document image a relative styling parameter, the relative styling parameter being defined in reference to the baseline styling parameter value, wherein the relative styling parameter specifies a font height as a percentage of the baseline styling parameter value;
• and
• providing the relative styling parameter as output metadata for output.

A method comprising:

• obtaining a document image, wherein the document image includes a plurality of objects;
• identifying a plurality of macroblocks within the document image;
• performing microblock processing within macroblocks of the plurality of macroblocks, wherein the microblock processing includes examining content of microblocks within a macroblock for extraction of key-value pairs, the examining content including performing an ontological analysis of microblocks;
• and
• outputting metadata based on the performing microblock processing within macroblocks of the plurality of macroblocks.

A computer program product comprising:

• a computer readable storage medium readable by one or more processing circuit and storing instructions for execution by one or more processor for performing a method comprising:
• obtaining a document image, wherein the document image includes a plurality of objects;
• identifying a plurality of macroblocks within the document image;
• performing microblock processing within macroblocks of the plurality of macroblocks, wherein the microblock processing includes examining content of microblocks within a macroblock for extraction of key-value pairs, the examining content including performing an ontological analysis of microblocks;
• and
• outputting metadata based on the performing microblock processing within macroblocks of the plurality of macroblocks.

A system comprising:

• a memory;
• at least one processor in communication with the memory;
• and
• program instructions executable by one or more processor via the memory to perform a method comprising:
• obtaining a document image, wherein the document image includes a plurality of objects;
• identifying a plurality of macroblocks within the document image;
• performing microblock processing within macroblocks of the plurality of macroblocks, wherein the microblock processing includes examining content of microblocks within a macroblock for extraction of key-value pairs, the examining content including performing an ontological analysis of microblocks, wherein the microblock;
• and
• outputting metadata based on the performing microblock processing within macroblocks of the plurality of macroblocks.