Focus after taking the photo: Computational Photography

Here's a novel idea, take your photo and then decide where you want the focus point to be! This is one of the possibilities of computational photography, it is unclear from this article if it is possible without a plenoptic camera (uses microlenses to capture multiple images). I wonder if this can be used to extend the DOF as well as just choose your focus point. Oh and it has possibilities for various other uses such as HDR which combine multiple images.
Photo Rumors: Startup company Lytro promises to redefine photography with computational imaging

Night vision, photography and dung beetles.

Ever wondered what dung beetles have to do with photography, night vision and road safety?  Check out this article for nature inspired pixle binning, HDR and image processing being used to try and help drivers see in the dark.

Dung beetles' secret superpower: ultimate night sight