Reversible Data Hiding for 3D Meshes in the PVQ-Compressed Domain

In this paper, we present a new data hiding method for 3D triangle meshes. While most of the existing data hiding schemes introduce some small amount of nonreversible distortion to the cover mesh, the new method is reversible and enables the cover mesh data to be completely restored when the payload is removed from the stego mesh. A noticeable difference between our method and others is that we embed data in the predictive vector quantization (PVQ) compressed domain by modifying the prediction mechanism during the compression process. Experimental results demonstrate the effectiveness of the proposed scheme.