EASILY DEPLOYABLE INTERACTIVE DIRECT-POINTING SYSTEM AND PRESENTATION CONTROL SYSTEM AND CALIBRATION METHOD THEREFOR

摘要

A method for controlling movement of a computer display cursor based on a point-of-aim of a pointing device within an interaction region includes projecting an image of a computer display to create the interaction region. At least one calibration point having a predetermined relation to said interaction region is established. A pointing line is directed to substantially pass through the calibration point while measuring a position of and an orientation of the pointing device. The pointing line has a predetermined relationship to said pointing device. Movement of the cursor is controlled within the interaction region using measurements of the position of and the orientation of the pointing device.

主权项

1. A pointing device for controlling a feature on an image generated by a computer, comprising:
a handheld enclosure having a predetermined relation to a pointing line; a sensing device for generating data, with first data of said sensing device dependent on a first orientation of said enclosure at a first position while the pointing line is directed at a first calibration point, said first calibration point having a predetermined relation to the image, and with second data of said sensing device dependent on a second orientation of said enclosure at substantially said first position while the pointing line is directed at a non-calibration point on the image, said sensing device including an image capturing device; and a communication element coupled to said sensing device for providing third data to the computer for controlling the feature on the image, said third data being based on said first data or said second data, wherein the feature on the image can be controlled based on the relation between the first orientation and the second orientation of said enclosure.