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Automatic detection of change in address blocks for reply forms processing

Karthick, K.R. and Marshall, S. and Gray, A.J. and , United Kingdom's Knowledge Transfer Partnership (KTP) Program (F (2008) Automatic detection of change in address blocks for reply forms processing. In: Proceedings of IAENG International Conference on Imaging Engineering. International Association of Engineers, pp. 650-654. ISBN 978-988-98671-8-8

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Abstract

In this paper, an automatic method to detect the presence of on-line erasures/scribbles/corrections/over-writing in the address block of various types of subscription and utility payment forms is presented. The proposed approach employs bottom-up segmentation of the address block. Heuristic rules based on structural features are used to automate the detection process. The algorithm is applied on a large dataset of 5,780 real world document forms of 200 dots per inch resolution. The proposed algorithm performs well with an average processing time of 108 milliseconds per document with a detection accuracy of 98.96%.