Identification of Aliasing-Based Patterns in Re-Captured LCD Screens
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F15%3A00450605" target="_blank" >RIV/67985556:_____/15:00450605 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/ICIP.2015.7350872" target="_blank" >http://dx.doi.org/10.1109/ICIP.2015.7350872</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ICIP.2015.7350872" target="_blank" >10.1109/ICIP.2015.7350872</a>
Alternative languages
Result language
angličtina
Original language name
Identification of Aliasing-Based Patterns in Re-Captured LCD Screens
Original language description
In this paper we address the problem of identification of pictures and videos re-captured from LCD screens. We show that they often exhibit detectable periodic patterns that are caused by regular sampling grid of LCD screen and aliasing. We develop a method capable of detecting these patterns by using the theory of cyclostationarity. The term cyclostationarity refers to a special class of signals which exhibit periodicity in their statistics. Such signals have a frequency spectrum correlated with a shifted version of itself. Experimental results quantifying the performance of the developed method are also shown.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
IN - Informatics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA13-28462S" target="_blank" >GA13-28462S: Genuineness Analysis of Digital Videos</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 2015 IEEE International Conference on Image Processing, ICIP 2015
ISBN
978-1-4799-8339-1
ISSN
1522-4880
e-ISSN
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Number of pages
5
Pages from-to
616-620
Publisher name
IEEE
Place of publication
Piscataway
Event location
Québec City
Event date
Sep 27, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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