> They also use a second, undisclosed system on the visual derivative before human review. While it’s possible they have invented two separate perceptual hashing systems, it’s also quite possible that they would use PhotoDNA for this.
Yep I probably didn't phrase my question well enough but that was exactly part of what I was wondering.
They claim it's a second independent hash as you pointed out, so I would assume this is PhotoDNA server side, unless they made two separate hash systems (one which was not initially disclosed, if not implemented, at announcement time) ?
I'm also wondering exactly how they trained their NeuralHash, but may have missed some parts of the discussion. Supposedly NCMEC is not sharing the database of the "original" content that one would use to train such a system.
Edit : Guess that's a moot point now, they postponed it!
Yep I probably didn't phrase my question well enough but that was exactly part of what I was wondering.
They claim it's a second independent hash as you pointed out, so I would assume this is PhotoDNA server side, unless they made two separate hash systems (one which was not initially disclosed, if not implemented, at announcement time) ?
I'm also wondering exactly how they trained their NeuralHash, but may have missed some parts of the discussion. Supposedly NCMEC is not sharing the database of the "original" content that one would use to train such a system.
Edit : Guess that's a moot point now, they postponed it!