Video Hash Algorithm Based on 3D Wavelet Transform
Yefei Han · Jisuanji gongcheng · 2010
A video Hash algorithm based on 3D Wavelet Transform(3D WT) is proposed to improve the security of video watermark system.Pre-processed video sequence is applied in turning row-dimensional wavelet transform,column-dimensional direction wavelet transform and time-dimensional wavelet transform,to complete three-dimensional discrete wavelet transform,and the Hash computing result is given.Experimental results show the robustness of the proposed video hash algorithm for intra-pixel moving attack and random frame jitter attack.