Performance Analysis and Test of Video Hash
LI Ling-linga · Jisuanji gongcheng · 2012
For unidirectional,uniqueness and robustness of robust video hashing,mathematical model is built for the video hashing scheme based on the 3D Discrete Wavelet Transform(3D-DWT),and the unidirectional of the scheme is proved,using the unconditionally secure of cryptology.It computes the probability density of hamming distance between the referenced hashing sequence and the calculated hashing sequence,and proves theoretically the uniqueness of the video hashing scheme based on 3D-DWT and the scheme based on 3D Discrete Cosine Transform(3D-DCT) under the same condition.According to the theoretical and experimental results,analyze the robustness of the two schemes under different attacks and conclude that the uniqueness and robustness of video hash are interact on each other.