Reversible Data Hiding for Texture Videos and Depth Maps Coding with Quality Scalability

TLDR: A novel reversible data hiding scheme is proposed to integrate depth maps into corresponding texture video bitstreams to achieve better video rendering quality and coding efficiency compared with existing related schemes.

Abstract: To support 3-D video and free-viewpoint video applications, efficient texture videos and depth maps coding should be addressed. In this paper, a novel reversible data hiding scheme is proposed to integrate depth maps into corresponding texture video bitstreams. At the sender end, the depth video bitstream obtained by depth down-sampling and compression is embedded in residual coefficients of corresponding texture video. The data embedding is implemented by the histogram shifting technique. At the receiver end, the depth maps can be retrieved with scalable quality after data extraction, video decoding and texture-based depth reconstruction. Due to the attractive property of reversible data hiding, the texture video bitstream can be perfectly recovered. Experimental results demonstrate that the proposed scheme can achieve better video rendering quality and coding efficiency compared with existing related schemes.