Fig. 2

Block diagram of video perceptual hashing with maximized robustness. In the learning part, video, together with their variants under perceptual content preserving and distorting operations, are preprocessed to form the feature space. The maximum feature offset is learned to be regarded as the maximized robustness. In the hashing part, a particular video is processed to obtain its feature, and the feature is adjusted by the feature offset. Hash function is performed to the feature to generate the final hash