Reversible Data Hiding with Low Bit-Rate Growth in H.264/AVC Compressed Video by Adaptive Hybrid Coding

摘要

For the reversible data hiding algorithm in compressed-domain videos, secret data embedding process usually lead to a large bit-rate growth of video stream, thus the imperceptibility and security will be decreased. In order to solve this problem, a reversible data hiding algorithm with low bit-rate growth in H.264/AVC compressed video by adaptive hybrid coding is proposed in this paper. In the proposed scheme, the hybrid coding algorithm has been adaptively applied on different trailing coefficients, which makes the algorithm have a considerable embedding capacity and a low bit-rate growth. Compared with the existing reversible data hiding algorithm for video, the proposed scheme has a lower bit-rate growth with the same hiding capacity.