With the advent of 3D video compression and Internet technology, 3D videos have\nbeen deployed worldwide. Data hiding is a part of watermarking technologies and has many\ncapabilities. In this paper, we use 3D video as a cover medium for secret communication using\na reversible data hiding (RDH) technology. RDH is advantageous, because the cover image can\nbe completely recovered after extraction of the hidden data. Recently, Chung et al. introduced\nRDH for depth map using prediction-error expansion (PEE) and rhombus prediction for marking\nof 3D videos. The performance of Chung et al.â??s method is efficient, but they did not find the\nway for developing pixel resources to maximize data capacity. In this paper, we will improve the\nperformance of embedding capacity using PEE, inter-component prediction, and allowable pixel\nranges. Inter-component prediction utilizes a strong correlation between the texture image and the\ndepth map in MVD. Moreover, our proposed scheme provides an ability to control the quality of\ndepth map by a simple formula. Experimental results demonstrate that the proposed method is more\nefficient than the existing RDH methods in terms of capacity.
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