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Summary: Bidimensional Relations for Reading Order Detection
Marco Aiello Arnold M.W. Smeulders
DIT, University of Trento ISIS, University of Amsterdam
Via Sommarive, 14 Kruislaan 403
38100 Trento, Italy 1098 SJ Amsterdam, The Netherlands
aiellom@dit.unitn.it smeulders@science.uva.nl
Abstract
We use a propositional language of qualitative rectangle re-
lations to detect the reading order from document images.
Document encoding rules are introduced and, expressed in
the propositional language of rectangles, are used to build a
reading order detector for document images. Results of test-
ing the framework on a collection of heterogeneous document
images are reviewed.
Introduction
We are witnessing a constant growth in the proliferation of
documents in electronic format. However, in our everyday
life we still deal with paper documents. Often, one needs an
electronic version of a paper document. A raw image of the
document is a way of achieving this, but it has a number of
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