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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 , we propose a new taxonomy of steganographic algorithms with fourarXiv:2104.10203v1 fatcat:55z2mdrgtvhy3pb63c4ai6gbdy