Input device for generating an input instruction by a captured keyboard image and related method thereof

Abstract

An input device for generating an input instruction by captured images is disclosed. The input device includes a first image capturing module, a second image capturing module and a logic control unit. The first image capturing module and the second image capturing module are disposed around a keyboard for respectively capturing a first object image and a second object image of an object and for respectively capturing a first key image and a second key image of a key on the keyboard. The logic control unit is used for calculating a first distance according to the first object image and the first key image and a second distance according to the second object image and the second key image, and for generating the input instruction when the first distance and the second distance are smaller than a first threshold value and a second threshold value, respectively.

Dependencies are inferred from the claim text.