Video Object Robust Watermark Combining SIFT Correction
Bin Luo · Jisuanji gongcheng · 2011
A video object watermark algorithm using Scale-Invariant Feature Transform(SIFT) features and video segmentation based on spatio-temporal information is proposed.The watermark message is embedded in Discrete Cosine Transform(DCT) domain of the detected video object region.Before embedding the watermark,the object SIFT features are detected and registered in advance.In the detecting scheme,the object is corrected by using feature matching,and the message can be detected.Experimental results show that the algorithm can well protect the video object and be robust to geometric attacks and usual signal processing attacks.