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Improved forgery detection with lateral chromatic aberration
Conference proceeding

Improved forgery detection with lateral chromatic aberration

Owen Mayer, Matthew Stamm and IEEE
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), v 2016-, pp 2024-2028
Mar 2016

Abstract

Copy Paste Forgery Detection Digital Forensics Digital images Forgery Lateral Chromatic Aberration Mathematical model Optical imaging Optical sensors Optical variables measurement
In this paper we propose a technique to improve the accuracy of lateral chromatic aberration (LCA) based detection of copy-paste image forgeries. We propose a statistical model of the error between local estimates of LCA displacement vectors and those predicted by a global model. Using this statistical model, we formulate forgery detection as a hypothesis testing problem, and derive the optimal detection statistic for performing LCA-based forgery detection. Through a series of experiments, we demonstrate that our proposed technique outperforms existing approaches for conducting LCA-based forgery detection.

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12 citations in Scopus

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Web of Science research areas
Acoustics
Engineering, Electrical & Electronic
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