NDLI: Geometric distortion signatures for printer identification

Content Provider	IEEE Xplore Digital Library
Author	Bulan, O. Junwen Mao Sharma, G.
Copyright Year	2009
Description	Author affiliation: ECE Dept., University of Rochester, NY, 14627-0126, USA (Bulan, O.; Junwen Mao; Sharma, G.)
Abstract	We present a forensic technique for analyzing a printed image in order to trace the originating printer. Our method, which is applicable for commonly used electrophotographic (EP) printers, operates by exploiting the geometric distortion that these devices inevitably introduce in the printing process. In the proposed method, first a geometric distortion signature is estimated for an EP printer. This estimate is obtained using only the images printed on the printer and without access to the internal printer controls. Once a database of printer signatures is available, the printer utilized to print a test image is identified by computing the geometric distortion signature from test image and correlating the computes signatures against the printer signatures in the database. Experiments conducted over a corpus of EP printers demonstrate that the geometric distortion signatures of test documents exhibit high correlation with the corresponding printer signatures and a low correlation with other printer signatures. The method is therefore quite promising for forensic printer identification applications. We highlight several of the capabilities and challenges for the method.
Starting Page	1401
Ending Page	1404
File Size	405582
Page Count	4
File Format	PDF
ISBN	9781424423538
ISSN	15206149
DOI	10.1109/ICASSP.2009.4959855
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-19
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Printers Forensics Printing Testing Image analysis Image databases Spatial databases Information security Law Legal factors geometric distortion signature Printer forensics printer identification hardcopy document forensics
Content Type	Text
Resource Type	Article

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