Patent ID: 8149215
Filing Date: 2012-04-03
Classification: G06F

Abstract:
1. A cursor controlling method, an imaging plane being associated with a computer for displaying an output from the computer, an external cursor being projected onto the imaging plane, the output comprising an internal cursor generated by the computer, the method comprising steps of: (a) capturing an image from the imaging plane; (b) adjusting the color of the internal cursor based on the background color of the output from the computer; (c) obtaining a first position of the external cursor by detecting the brightness of the external cursor; (d) setting a search area on the image based on an absolute position of the internal cursor in the computer; (e) obtaining a second position of the internal cursor by detecting the color or the shape of the internal cursor within the search area of the image; (f) calculating a shift vector between the first and second positions; and (g) moving the internal cursor based on the shift vector.