Automatic detection of change in address blocks for reply forms processing

Karthick, Keerambur Ramaswami and Marshall, Stephen and Gray, Alison J. United Kingdom's Knowledge Transfer Partnership (KTP) Program (Funder) (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, Hong Kong, pp. 650-654. ISBN 9789889867188

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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%.