Here's an older HN link covering the same product: http://news.ycombinator.com/item?id=638053 http://news.ycombinator.com/item?id=638053 There's some further i

Here's an older HN link covering the same product: http://news.ycombinator.com/item?id=638053 http://news.ycombinator.com/item?id=638053 There's some further information as to how it's achieved in the comments, as well as link to the academic paper the product is based on.