I thought Chatroulette was working on this problem years ago? Maybe just a rumor.

They were certainly funding research into it.

http://wan.poly.edu/KDD2012/docs/p552.pdf

> For instance, our observation on a typical weekend (summer 2011) from a representative online video chat website (Omegle) indicates that 35% of the videos broadcast by this website have nudity in them. ... In this paper, we present a new approach to misbehavior detection in online video chat systems that significantly improves upon the state of the art in terms of its increased scalability while also achieving higher accuracy.

> This work is supported in part by the unrestricted gift funds from Chatroulette and the US National Science Foundation (NSF) through grant number CiC 1048298.

> Whoever successfully writes such a piece of software will make billions.

And have fun at work!