23-1 改竄行為を考慮したMPEG動画像に適した電子透かし

抄録

We propose a new method which embed a copyright information as a digital watermark on a digital video such as MPEG. The method has an ability to protect the information from a re-encoding attack to the video image by introducing an error-correcting code and an interleaving technique. We confirm that embedding information can be completely decoded at a few second intervals by computer simulation.