Invertible authentication for 3D-meshes

Digital watermarking has become an accepted technology for enabling multimedia protection schemes. Based on the introduced media independent protocol schemes for invertible data authentication in [2], [4] and [5] we discuss the design of a new 3D invertible labeling technique to ensure and require high data integrity. As in [2,4,5] we combine digital signature schemes and digital watermarking to provide a public verifiable integrity. Furthermore the protocol steps in [2,4,5] to ensure that the original data can only be reproduced with a secret key is adopted for 3D meshes. The goal is to show how the existing protocol can be used for 3D meshes to provide solutions for authentication watermarking. In our design concept and evaluation we see that due to the nature of 3D meshes the invertible function are different from the image and audio concepts to achieve invertibility to guaranty reversibility of the original. Therefore we introduce a concept for distortion free invertibility and a concept for adjustable minimum distortion invertibility.