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Knowledge-Based Fusion for Image Tampering Localization

机译:基于知识的融合,用于图像篡改本地化

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摘要

In this paper we introduce a fusion framework for image tampering localization, that moves towards overcoming the limitation of available tools by allowing a synergistic analysis and multiperspec-tive refinement of the final forensic report. The framework is designed to combine multiple state-of-the-art techniques by exploiting their complementarities so as to produce a single refined tampering localization output map. Extensive evaluation experiments of state-of-the-art methods on diverse datasets have resulted in a modular framework design where candidate methods go through a multi-criterion selection process to become part of the framework. Currently, this includes a set of five passive tampering localization methods for splicing localization on JPEG images. Our experimental findings on two different benchmark datasets showcase that the fused output achieves high performance and advanced interpretability by managing to leverage the correctly localized outputs of individual methods, and even detecting cases that were missed by all individual methods.
机译:在本文中,我们介绍了一种用于图像篡改定位的融合框架,该框架通过允许对最终法医报告进行协同分析和多角度细化,从而克服了可用工具的局限性。该框架旨在通过利用它们的互补性来结合多种最先进的技术,从而生成单个精制的篡改本地化输出图。在各种数据集上对最新方法进行的广泛评估实验导致了模块化框架设计,其中候选方法经过多标准选择过程成为框架的一部分。当前,这包括用于在JPEG图像上拼接本地化的五种被动篡改本地化方法的集合。我们在两个不同基准数据集上的实验结果表明,融合输出通过设法利用单个方法的正确本地化输出,甚至检测所有单个方法都遗漏的案例,从而实现了高性能和高级可解释性。

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