About: A Cyclostationarity Analysis Applied to Scaled Images

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The knowledge of image’s geometric history plays an important role in image signal compression, image registration, image retrieval and especially in image forensics. In this paper we focus on scaling and show that images that have undergone scaling contain hidden cyclostationary features. This makes possible employing the well–developed theory and efficient methods of cyclostationarity for a blind analyzing of the history of images in respect to scaling transformation. To verify this, we also propose a cyclostationarity detection method applied to our problem and show how the traces of scaling can be detected and the specific parameters of the transformation estimated. The method is based on the fact that a cyclostationary signal has a frequency spectrum correlated with a shifted version of itself. A quantitative measure of the efficiency of the method is proposed as well. The knowledge of image’s geometric history plays an important role in image signal compression, image registration, image retrieval and especially in image forensics. In this paper we focus on scaling and show that images that have undergone scaling contain hidden cyclostationary features. This makes possible employing the well–developed theory and efficient methods of cyclostationarity for a blind analyzing of the history of images in respect to scaling transformation. To verify this, we also propose a cyclostationarity detection method applied to our problem and show how the traces of scaling can be detected and the specific parameters of the transformation estimated. The method is based on the fact that a cyclostationary signal has a frequency spectrum correlated with a shifted version of itself. A quantitative measure of the efficiency of the method is proposed as well. (en)
Title	A Cyclostationarity Analysis Applied to Scaled Images A Cyclostationarity Analysis Applied to Scaled Images (en)
skos:prefLabel	A Cyclostationarity Analysis Applied to Scaled Images A Cyclostationarity Analysis Applied to Scaled Images (en)
skos:notation	RIV/67985556:_____/09:00339845!RIV10-AV0-67985556
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA102/08/0470), Z(AV0Z10750506)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Saic, Stanislav Mahdian, Babak
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav teorie informace a automatizace AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	301230
http://linked.open...ai/riv/idVysledku	RIV/67985556:_____/09:00339845
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Interpolation; scaling; cyclostationary; authentication; image forensics (en)
http://linked.open.../riv/klicoveSlovo	scaling image forensics cyclostationary authentication Interpolation
http://linked.open...ontrolniKodProRIV	[6C7EB3D2845A]
http://linked.open...v/mistoKonaniAkce	Bangkok
http://linked.open...i/riv/mistoVydani	Berlin
http://linked.open...i/riv/nazevZdroje	Neural Information Processing
http://linked.open...in/vavai/riv/obor	IN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Detection of digital image forgeries by passive-blind image authentication
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Mahdian, Babak Saic, Stanislav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2009-12-01 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Pokročilé matematické metody získávání, zpracování a využití informací a znalostí ve složitých a nedeterministických systémech
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Springer-Verlag
https://schema.org/isbn	978-3-642-10682-8
is http://linked.open...avai/riv/vysledek of	A Cyclostationarity Analysis Applied to Scaled Images A Cyclostationarity Analysis Applied to Scaled Images A Cyclostationarity Analysis Applied to Scaled Images A Cyclostationarity Analysis Applied to Scaled Images

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