Three-dimensional (3-D) meshes are commonly used to represent virtual surfaces and volumes. Over the past decade, 3-D meshes have emerged in industrial, medical, and entertainment applications, being of large practical significance for 3-D mesh steganography and steganalysis. In this article, we provide a systematic survey of the literature on 3-D mesh steganography and steganalysis. Compared with an earlier survey (Girdhar et al., 2017), we propose a new taxonomy of steganographic algorithms with four categories: 1) two-state domain, 2) LSB domain, 3) permutation domain, and 4) transform domain. Regarding steganalysis algorithms, we divide them into two categories: 1) universal steganalysis and 2) specific steganalysis. For each category, the history of technical developments and the current technological level are introduced and discussed. Finally, we highlight some promising future research directions and challenges in improving the performance of 3-D mesh steganography and steganalysis.

中文翻译：

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三维网格隐写术和隐写分析：回顾


三维 (3-D) 网格通常用于表示虚拟表面和体积。在过去的十年中，3D网格在工业、医疗和娱乐应用中出现，对于3D网格隐写术和隐写分析具有重要的实际意义。在本文中，我们对 3-D 网格隐写术和隐写分析的文献进行了系统调查。与早期的调查（Girdhar 等人，2017）相比，我们提出了一种新的隐写算法分类法，分为四类：1）二状态域，2）LSB 域，3）排列域和 4）变换域。关于隐写分析算法，我们将其分为两类：1）通用隐写分析和2）特定隐写分析。对于每个类别，都介绍和讨论了技术发展的历史和当前的技术水平。最后，我们强调了在提高 3-D 网格隐写术和隐写分析性能方面一些有前途的未来研究方向和挑战。