earticle

영어

This paper proposes a digital video watermarking scheme based on 2D-DWT and pseudo 3D-DCT transformation, otherwise Singular Value Decomposition (SVD) are applied. To enhance the robustness of watermark, Particle Swarm Optimization (PSO) algorithm and Holography are used for embedding watermarks. The Hash scrambling transformation is used for ensuring the security of the method. During the embedding process, the quantization coefficients are dynamically determined by PSO algorithm. The method selects some key-frames in raw video to extract the luminance components and take them into some groups. The subband of generated hologram watermark is embedded into the subband of the singular value of each DCT block in every group. The experimental are conducted to verify the robustness through some common signal processing and frame-based attacks.