Who knew that reflection-free window photos were suddenly in vogue? Google and MIT do, apparently. Some of their researchers have developed an algorithm that eliminates unwanted visuals by using frames from a short video to separate the foreground from the background. Unlike an earlier MIT-only technique, this works with nearly any kind of obstruction. It'll remove rain drops and chain link fences, for instance. And in an odd twist, it can also capture an uncannily clear image of any reflections -- you know, in case you want to remember what shirt you were wearing when you took that shot.