The best way to do this is to have two high resolution cameras spread apart mapping a three dimensional view of the face.

FORBES: Perceptual Computing: Critical to Intel's Future

Despite the shift in language, the two sides continue to be very far apart on a resolution.

CNN: SHARE THIS

It works because the maximum resolution of a telescope (the minimum angle apart that two points need to be for the telescope to see them as separate) depends on its diameter, not its collecting area.

ECONOMIST: Radio telescopes

Resolution authority, all three panelists agreed, is a paper tiger that will fall apart the minute it is tested in a real-life financial crisis.

FORBES: Are Banks Too Big To Tolerate?

Apart from the dismal size of the picture, at 20 frames per second the resolution is low and the image is jerky.

ECONOMIST: MONITOR