The invention is a continuation of earlier applications aimed at providing
affordable methods and apparatus for inputting position,
attitude(orientation) or other object characteristic data to computers for
the purpose of controlling the display thereof. Preferred embodiments
utilize electro-optical sensors such as TV cameras, to input data from
objects and fingers, and/or other body parts of the user, to laptop, hand
held and other computers used for Computer Aided learning, Gaming, 3D
graphics, internet commerce and other applications.
