Spatio-temporal visual consistency for video copy detection
Video copy detection is essentially a problem of large scale pattern matching. Various copy attacks which change the visual appearance impose hazard on this task. Based on the spatio-temporal consistency, our algorithm aims to utilize the invariant pattern of visual information for video matching. Position correlation of trajectory feature points is calculated as the signature for fast detection. Experiments using benchmarked dataset and commonly happened copy attacks verify the robustness and efficiency of our algorithm.