Patent ID: 8064704

Claim:
An input method for a mobile phone, comprising: storing a plurality of images as control images; mapping the control images to corresponding control commands; capturing an image taken by a camera as a current image; comparing the captured current image to the control images; selecting one of the control images as a target control image according to a comparison result; extracting a control command corresponding to the target control image; and executing the control command: wherein selecting one of the control images as a target control image comprises: determining whether a difference offset between the current image and the control images are less than a first threshold offset; selecting the control images of which difference offset with the current image as candidate control images; determining whether a difference offset between the current image and the candidate control images are less than a second threshold offset; and selecting, if there is a candidate control image of which difference offset with the current image, the candidate control image as the target control image.