NDLI: Document inspection using text-line alignment

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Document inspection using text-line alignment

Content Provider	ACM Digital Library
Author	Shafait, Faisal Breuel, Thomas M. van Beusekom, Joost
Abstract	Passports, ID cards, banknotes, and degrees are considered as valuable documents that need to be secured against forgery. Apart from those, there are many other document types that are valuable, too, but that do not have any security features, as e.g. bills and vouchers. These may be used by fraudulent people to defraud money from e.g. a car insurance company. The wide availability of scanning and printing hardware allows even non-experts to easily forge a document. We therefore present a new aspect in the examination of intrinsic document features for optical document security: the goal is to automatically detect text-lines that have been manipulated or additionally inserted in a document by inspecting their alignment (left, right or center) with respect to the other text-lines in the document. This constitutes an additional feature in the goal of developing a powerful toolbox for automatic document inspection. Using the extracted text-lines, the alignment margins are extracted. Statistics on the distances of the text-lines to the alignment margins are used to identify lines that might have been forged. Such documents can then be presented to a human operator for further inspection. Due to lack of public datasets containing forged documents, a new dataset had to be created. Evaluation showed a classification accuracy of 90.5%.
Starting Page	263
Ending Page	270
Page Count	8
File Format	PDF
ISBN	9781605587738
DOI	10.1145/1815330.1815364
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-06-09
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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