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arXiv · 1804.06628

Reversible Video Data Hiding Using Zero QDCT Coefficient-Pairs

Yi Chen·Hongxia Wang·Hanzhou Wu·Yong Liu
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Abstract

H.264/Advanced Video Coding (AVC) is one of the most commonly used video compression standard currently. In this paper, we propose a Reversible Data Hiding (RDH) method based on H.264/AVC videos. In the proposed method, the macroblocks with intra-frame $4\times 4$ prediction modes in intra frames are first selected as embeddable blocks. Then, the last zero Quantized Discrete Cosine Transform (QDCT) coefficients in all $4\times 4$ blocks of the embeddable macroblocks are paired. In the following, a modification mapping rule based on making full use of modification directions are given. Finally, each zero coefficient-pair is changed by combining the given mapping rule with the to-be-embedded information bits. Since most of last QDCT coefficients in all $4\times 4$ blocks are zero and they are located in high frequency area. Therefore, the proposed method can obtain high embedding capacity and low distortion.

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Yi Chen, Hongxia Wang, Hanzhou Wu, Yong Liu. 2018-04-18. Reversible Video Data Hiding Using Zero QDCT Coefficient-Pairs. https://doi.org/10.1007/s11042-019-7635-z

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