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Recasting Residual-based Local Descriptors as Convolutional Neural Networks: an Application to Image Forgery Detection [article]

Davide Cozzolino, Giovanni Poggi, Luisa Verdoliva
<span title="2017-03-14">2017</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>

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Local descriptors based on the image noise residual have proven extremely effective for a number of forensic applications, like forgery detection and localization. Nonetheless, motivated by promising results in computer vision, the focus of the research community is now shifting on deep learning. In this paper we show that a class of residual-based descriptors can be actually regarded as a simple constrained convolutional neural network (CNN). Then, by relaxing the constraints, and fine-tuning
more &raquo; ... he net on a relatively small training set, we obtain a significant performance improvement with respect to the conventional detector.
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Davide Cozzolino, Giovanni Poggi, Luisa Verdoliva. "Recasting Residual-based Local Descriptors as Convolutional Neural Networks: an Application to Image Forgery Detection." arXiv (2017)