For the last 15 years or so, the state of the art in Human-Computer Interaction, and Computer Science as a whole, has been riding the line between the explicit and the implicit. I am trying very hard to understand this. When we meet a new Thing, we apply very powerful algorithms subconsciously to figure out…

My summer research at the Human Media Lab involves large investigations into multitouch sensing. For large interfaces, this involves the user touching the surface under some sort of illumination while a video camera captures the entire surface, and then filtering is applied to determine the touch points of the finger. There are often issues with…