Patent ID: 7969409
Filing Date: 2011-06-28
Classification: G06F,G09G

Abstract:
1. A method for providing visual feedback to a user operating a pointing device on a tablet for controlling a cursor within a window of a display, the user using a physical hand to operate the pointing device, the tablet defining a tablet region corresponding to the window, the tablet region comprising dimensions proportionally the same as the window, said method using an imaging device, said method comprising: acquiring with the tablet a pointing device position of the pointing device relative to the tablet region; substantially simultaneously to acquiring said pointing device position, capturing with the imaging device a hand image of the physical hand of the user operating the pointing device; positioning the cursor in the window using said pointing device position, the cursor being positioned so that the position of the cursor relative to the window corresponds to the pointing device position relative to the tablet region; and substantially simultaneously to positioning the cursor in the window, overlaying on the display said hand image in a manner such that the position and orientation of said hand image relative to the cursor and to the window corresponds to the position and orientation of the hand relative to the pointing device position and to the tablet region; whereby visual feedback regarding the position, orientation and shape of the physical hand of the user operating the pointing device is provided directly on the display by overlaying on the display the hand image acquired of the physical hand of the user operating the pointing device.