I saw a demo of a deep convnet (I assume) running on a tablet at a conference recently. While it&#x27;s limited to the vocabulary that the net is trained on, it&#x27;s seriously impressive seeing this stuff work in realtime.<p>One of the other speakers was giving a tech demo using his webcam. He was looking around for a mug to demonstrate that the classification was good and could work quickly. In the meantime the camera was looking behind him on stage and correctly classified the image as &quot;theatre curtains&quot;. It was particularly cool because image processing results are often cherrypicked to show optimal performance and you learn to be skeptical.