Zero-Parallax-Pixel Reconstruction Used in 3D Image Digital Watermarking

In the watermarking schemes based on depth-image-based rendering(DIBR), the left-eye image and the right-eye image are rendered from the center image by shifting the pixels horizontally. The watermark embedded in the center image may be terrible disturbed, thus the watermark can not be detected correctly from the left-eye or right-eye image. This article proposes a 3D watermarking method based on Zero-Parallax-Pixel, which reconstructs the pixels with zero parallax based on the depth image as the domain to embed the watermark. As the Zero-Parallax-Pixel does not change during the shifting, the proposed scheme can resist the attack of DIBR. Experiments show that the proposed scheme gains the same performance as the 2D image watermarking and is robust to the noise adding attacks.