International Business Machines Corporation

Wei Cheng

Shivakumar Vaithyanathan

Rajasekar Krishnamurthy

Prithviraj Sen

Douglas Ronald Burdick

Shajith I Mohamed

Alexandre Valentinovich Evfimievski

Marina Danilevsky Hailpern

Methods, systems, and computer program products for table recognition in PDF documents are provided herein. A computer-implemented method includes discretizing one or more contiguous areas of a PDF document; identifying one or more white-space separator lines within the one or more discretized contiguous areas of the PDF document; detecting one or more candidate table regions within the one or more discretized contiguous areas of the PDF document by clustering the one or more white-space separator lines into one or more grids; and outputting at least one of the candidate table regions as a finalized table in accordance with scores assigned to each of the one or more candidate table regions based on (i) border information and (ii) cell structure information.

Table recognition in portable document format documents

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Marina Del Rey, CA, United States of America

Wei Cheng