A video steganography algorithm for MVC without distortion drift
Guanghua Song, Zhitang Li, Juan Zhao, Hao Tu, Junxia Cheng · 2014
Distortion drift, including intra and inter, is a big problem of data hiding in MVC video streams. Based on the analysis of the coding structure of MVC, we proposed a video steganography algorithm without inter and intra distortion drift. We embed the data in the B4-frame to prevent the inter distortion drift, then modified the QDCT coefficients of all the 4×4 luma blocks and compensated them to prevent intra distortion drift. The algorithm has lower complexity and greater embedding capacity than the current algorithms. Experimental results confirm the embedding capacity and complexity superiority of the proposed algorithm while keeping the similar human visual effect in terms of PSNR and SSIM index.