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On More Paradigms of Steganalysis

机译:关于隐写分析的更多范式

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摘要

Up to now, most researches on steganalysis concentrate on one extreme case. Typically, the a priori knowledge of the embedding way and cover-media is assumed known in the classifier training and even feature design stage. However, the steganalysis in the real world is done with different levels of such knowledge so that there can be various paradigms for doing it. Although some researchers have addressed the situations, there is still a lack of a systematic approach to defining the various paradigms. In this paper, the authors give such an approach by first defining four extreme paradigms, and then defining the rest among them. Each paradigm is related with two sets of assumed known a priori knowledge respectively about the steganographic algorithm and cover-media, and each paradigm corresponds to a particular case of steganalysis. Also we will see that different paradigms can have very different aims so that the designs may be various.
机译:到目前为止,大多数隐写分析的研究都集中在一个极端的案例上。通常,假定在分类器训练甚至特征设计阶段就已经知道嵌入方式和封面媒体的先验知识。但是,现实世界中的隐写分析是使用不同级别的此类知识完成的,因此可以有多种范例来执行。尽管一些研究人员已经解决了这种情况,但是仍然缺乏定义各种范式的系统方法。在本文中,作者通过首先定义四个极端范例,然后定义其中的其余范例来给出这种方法。每个范例与分别关于隐写算法和封面媒体的两组假设的已知先验知识相关,并且每个范例对应于隐写分析的特定情况。我们还将看到,不同的范式可以具有非常不同的目标,因此设计可以多种多样。

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