Joint DWT and Integral Imaging for a three-dimensional watermarking system

In recent years, three-dimensional digital watermarking has become a new hotspot in optical information security. This paper presents a new three-dimensional digital watermarking method based on integrated imaging. Firstly, three-dimensional digital watermarking is generated by computational integral imaging system that is implemented with smart pseudoscopic-to-orthoscopic conversion model. Secondly, discrete wavelet transform algorithm is applied to embed and extract the three-dimensional digital watermarking. Finally, three-dimensional digital watermarking is identified and showed by integral imaging system. The feasibility and effectiveness of the proposed method is demonstrated by experiment, the new method is not only able to meet the requirements of robustness and security, but image quality and display quality achieve these criterions of the human visual model. The proposed method opens up a new research perspective for the copyright protect of three-dimensional digital multimedia products.