Younghooi Hwang Byeungwoo Jeon Tai M. Chung Improved Error Detection Method for Real-Time Video Communication Using Fragile Watermarking. 50-57 2002 conf/pcm/2002 IEEE Pacific Rim Conference on Multimedia http://link.springer.de/link/service/series/0558/bibs/2532/25320050.htm db/conf/pcm/pcm2002.html#HwangJC02