Abstract
In order to reduce the modification rate of cover media which is caused by embedding process, a new video steganography scheme based on motion vectors and linear block codes was proposed in this paper. The method embedded secret messages in the motion vectors of cover media during the process of H.264 compressing. Linear block codes were used to increase the utilization rate and reduce the modification rate of the motion vectors. The proposed steganographic scheme not only has lower computational complexity, but also is highly imperceptible to human being. Furthermore, the secret information can be extracted directly without using the original video sequences. Experiments were designed to prove the feasibility of the proposed method. The experimental results show that the proposed scheme can embed large amounts of information and can maintain good video quality as well.
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