A kind of digital video watermarking scheme that can be detected at random
Sun Han-tao · Qiye jishu kaifa · 2007
This paper designs a scheme of random video watermark for MPEG-4,which embeds the watermark in the DCT coefficient block of the texture information and generates the control code by the prediction directions of the DC and AC coefficient to synthesize the watermark and the secret key of watermark.It can efficiently detect the watermark in real time and in random.