Source Camera Identification Based on PRNU Invariant to Zoom

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F11%3A00192612" target="_blank" >RIV/68407700:21340/11:00192612 - isvavai.cz</a>
Alternative codes found
RIV/67985556:_____/11:00391295
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Source Camera Identification Based on PRNU Invariant to Zoom
Original language description
In 2006 was proposed one of the most effective source camera identification technique based on uneven sensitivity of pixels. This unevenness causes unique noise for each sensor known as Photo-Response Non-Uniformity (PRNU). Methods based on PRNU are shown as powerful tool for image forensics. However, their accuracy can be reduced by the interpolation noise or image compression by the camera post-processing. In experiments with compact cameras, we found that the resulting PRNU is changing when we used the zoom in camera. The aim of this paper is analyze these changes and propose a methodology of the detection PRNU of compact cameras with zoom.
Czech name
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Czech description
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Project
<a href="/en/project/VG20102013064" target="_blank" >VG20102013064: Tools for imaging device identification, authentication, and image reconstruction</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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