A hand-held processing device, such as a mobile telephone, a personal
digital assistant (PDA), or a portable computer, includes a physically or
electronically adjustable camera and is operative to track a specified
object of interest. Relative movement between the hand-held device and
the object of interest is detected using an orientation determination
device such as a gyroscope, an image-based tracking operation, or a
hybrid combination of orientation determination and image-based tracking.
A setting of the camera is then adjusted so as to maintain a desired
framing of the object of interest within an image generated by the
camera.