HVS-based video watermarking technique using downsampling
Kang Zhi-wei · Jisuanji yingyong yanjiu · 2010
This paper presented a compressed domain video watermarking technique against video transcoding. The watermarking approach was based on an downsampling algorithm working in the DCT-domain and the Watson visual model which introduced to control the watermark embedding strength. It chose the middle and low DCT coefficients as the position of watermark sequence to be embedded,in order to balance the relationship between watermark robustness and visual transparency. Experimental results show that the proposed strategies are useful in solving the transcoding attack,especially downsampling transcoding.