Replacing Humans With CGI Animations To Protect Anonymity In Video Footage (thestack.com)

An anonymous reader writes: New research (PDF) from the University of Zagreb proposes the de-identification of innocent individuals in closed circuit footage by replacing them with CGI animations which either guess their skeletal motion or impose the animation via Kinect-style movement sensors. In order to preserve the raw footage, the original frames are then re-encoded via steganographic techniques into the final amended output.

Comments

Huh?

[Hognoxious]

In order to preserve the raw footage, the original frames are then re-encoded via steganographic techniques into the final amended output.

I'm confused. If you want to keep the original, why not just keep it somewhere else rather than jumping through hoops and potentially bringing its authenticity into question?