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Blind Authentication Using Periodic Properties ofInterpolation
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SYSNO ASEP 0311915 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Blind Authentication Using Periodic Properties ofInterpolation Title Pasivní ověřování pravosti s vužitím periodických vlastností Interpolace Author(s) Mahdian, Babak (UTIA-B) RID
Saic, Stanislav (UTIA-B)Source Title IEEE Transactions on Information Forensics and Security - ISSN 1556-6013
Roč. 3, č. 3 (2008), s. 529-538Number of pages 10 s. Language eng - English Country US - United States Keywords image forensics ; digital forgery ; image tampering ; interpolation detection ; resampling detection Subject RIV IN - Informatics, Computer Science R&D Projects GA102/08/0470 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10750506 - UTIA-B (2005-2011) UT WOS 000258913300018 DOI 10.1109/TIFS.2004.924603 Annotation In this paper we analyze and analytically describe the specific statistical changes brought into the covariance structure of signal by the interpolation process. We show that interpolated signals and their derivatives contain specific detectable periodic properties. Based on this, we propose a blind, efficient and automatic method capable of finding traces of resampling and interpolation. Workplace Institute of Information Theory and Automation Contact Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201. Year of Publishing 2009
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