Patent ID: 8638398

Claim:
A cursor control method for controlling the movement of a cursor on an image display, the method comprising the steps of: providing at least two reference points for generating light of a predetermined spectrum and defining a predetermined area; providing an image sensor for pointing inside the predetermined area; receiving the light of the predetermined spectrum by the image sensor to form a digital image; identifying positions and shapes of the images of the reference points on the digital image to form a first parameter comprising a first position parameter of the images of the reference points; performing distance and angle compensations on the first parameter, wherein the angle compensation is implemented according to an equation between the first position parameter and a predetermined position parameter of the images of the reference points thereby compensating the images of the reference points to under the same basis; moving the aiming point of the image sensor inside the predetermined area to form a second parameter; and calculating a displacement of the images of the reference points on the digital image according to the compensated first parameter and the second parameter so as to accordingly control the movement of the cursor.