Diminished Reality

Researchers at Technical University of Ilmenau in Germany have developed “diminished reality” software that can delete an object from live, full-motion video.

The software first reduces the resolution of the object, removes the image, and improves the result (similar to using a smudge tool in Photoshop), then incrementally increases the resolution, improving the result, until the original resolution is restored.
First thing that came to mind: “What use is a phone… if you have no mouth?”

(Source: kurzweilai.net)