High Capacity Reversible Data Hiding for Encrypted 3D Mesh Models Based on Topology

Reversible data hiding in encrypted domain(RDH-ED) can not only protect the privacy of 3D mesh models and embed additional data, but also recover original extract losslessly. However, due to insufficient use model topology, existing methods have achieved satisfactory results terms embedding capacity. To further improve capacity, a RDH-ED method is proposed based on topology models, which divides vertices into two parts: set prediction set. And after integer mapping, ability calculated by It then passed hider for data. Finally, be extracted recovered respectively receiver with correct keys. Experiments declare that compared methods, this obtain highest