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 first data indicative of a first spatial state of said enclosure while the pointing line is directed at a first calibration point, said first calibration point having a predetermined relation to the image, and for generating second data indicative of a second spatial state of said enclosure while the pointing line is directed at a non-calibration point on the image; and a communication element coupled to said sensing device for providing control data to the computer for controlling the feature on the image, said control data being based on said first data and said second data, wherein the feature on the image can be controlled based on the relation between the first spatial state and the second spatial state of said enclosure. view more

The pointing device according to claim 15, wherein said sensing device includes an accelerometer.

The pointing device according to claim 19, wherein said first spatial state and said second spatial state comprise an orientation of said enclosure.

The pointing device according to claim 15, wherein said sensing device includes a gyroscope.

The pointing device according to claim 15, wherein said sensing device includes an image sensor.