[zopf]

Where'd you get your images? Food-101 plus something else?

We're working on a similar component for our commercial behavioral-economics-driven app suite, targeted toward patients with chronic diseases.

Do you use location as a way to filter the set of possible foods, as in Google's im2calories project/paper last year?

They do some pretty awesome depth calculation stuff too: https://www.google.com/?ion=1&espv=2#q=im2calories+type:pdf

Edit: oops, should have read further. I see that you pulled appropriate terms from WordNet and used ImageNet to gather training images from Flickr. Cool!