Adobe Systems Inc. demonstrated impressive new photography technologies during a recent Nvidia Tech Conference, that would allow users to refocus photos on their computers after the photo was originally snapped. The company used plenoptic lenses, which essentially are many lenses clustered together that are able to focus on different parts of a picture (including the ability to capture 3D images), the result is a mosaic like non-natural group of micro-pictures with an infinite depth of field. Plenoptic lenses are a new technology that uses just a single extra lens and some software to enable you to refocus pictures after the act of taking it
Just check it out, it just is very impressive.
