Mehmet Kucukgoz Oztan Harmanci Mehmet Kivanç Mihçak Ramarathnam Venkatesan Robust video watermarking via optimization algorithm for quantization of pseudo-random semi-global statistics. 363-369 2005 conf/sswmc/2005 Security, Steganography, and Watermarking of Multimedia Contents db/conf/sswmc/sswmc2005.html#KucukgozHMV05