A Recent Survey of Reversible Data Hiding Techniques for 2D and 3D Object Models

In recent years, humans have gradually begun experiencing the world in 3D object models, and the vast use of 3D object models has made them an ideal information hiding platform. The most common uses of these models are displaying virtual surfaces and volumes. The use of 3D object models in industrial, medical, and entertainment fields has increased substantially over the last decade, giving immense value to research in 3D object models. Information hiding is one of the most important techniques in terms of privacy protection for multimedia content. Additionally, reversible data hiding (RDH) offers impressive performance in data security and authentication. Thus, to explore more, the RDH in encrypted images technique has been extended to 3D mesh models. It gives better performance in comparison to existing 2D models. This paper presents a review with the aim to show the development of emerging methodologies in the field of RDH on 3D object models. In this paper, the existing RDH techniques in the spatial domain and encrypted domain on 2D and 3D object models have been compared. This paper also spots the areas where RDH on 3D object models may be explored more.