Fingerprint Creation Algorithm Based-On Dimensionality Reduction

With the rapid development of multimedia technology, there are more and more internet video, protecting video content to avoid coping or editing become hot research topics. We propose the algorithm of reducing dimension and generating video fingerprint to detect internet video copy. The scheme is that make the video into a fixed value by pretreatment, to use hypergraph model video to divide into different groups, and to optimize dimension reduction to low dimensional space by using conformal projection algorithm, finally to create video fingerprint in low dimensional space.