[ThomasHarvey]

I stumbled across this earlier today:
Research Blog: Building a deeper understanding of images
ImageNet Large Scale Visual Recognition Competition 2014 (ILSVRC2014)

So, this brings up the question, if Google is able to detect this, how long until this is rolled out and fully replaces current image optimization practices.

[Xen-G]

That's a tough question. Who knows? What I do is I monitor google updates and see what the google webmasters or web owners say. I would regularly check on sites like DMOZ and search engine land to get updates.