A Novel Robust Spread Spectrum Watermarking Scheme for 3D Video Traitor Tracing.

The 3D video traitor tracing approach is an effective technique for securing 3D content. This approach involves the protection of the multimedia content and the prevention of each malicious manipulation by embedding the Collusion-Secure Fingerprinting (CSF) codes. Traitor tracing aims also at retrieving back the actors who contributed to the construction of an illegal release of a multimedia product by applying an efficient tracing scheme. Depending on the position of embedding the CSF codes, the current secure 3D video content schemes can be classified into three categories: the first one embeds the fingerprint into the 2D video, the second one into the depth maps' content, but each of these two categories protects only one component of the 3D video which gives rise to the proposal of a third category which embeds the fingerprint in both the two components of the 3D video and protects independently and simultaneously the 2D frames and the depth maps contents. This paper proposes a novel traitor tracing technique to protect the two essential components of 3D videos by embedding the CSF in the 2D frames and the depth maps by applying a novel and robust spread spectrum watermarking scheme. Experimental assessments demonstrate the effectiveness of this proposed technique by applying it to a case study of 3D games and show promising results in terms of speed and tracking accuracy constraints.