1. Field of the Invention
The present invention relates to a computer operation without using any substantial object, especially, to a method by which a computer is operated through the images of fingers or other proper object within a capturing section.
2. Description of the Prior Art
Mice are generally installed in computers for controlling the movement of a cursor on the display screen and for selecting or performing a work through a click. The current mouse is used to control a cursor through a (.sub..DELTA. X, .sub..DELTA. Y) corresponding to a rolling balls. Due to mass production, the cost thereof is relatively cheap, but the fatigue of the hand and professional hurt to a computer operator are gradually serious, therefore, it is needed to develop a new mouse conforming the requirement of the ergonomics.
In U.S. Pat. No. 5,617,312, a method is disclosed in which the computer system is controlled by a message of input image form a video camera, and in which the shape of a whole hand or a special lighting pen must be identified, wherein the lighting pen is provided with a light emitting element and a switch, and by a click on the lighting pen or the conventional keyboard, the clicking in the conventional mouse is performed. The primary formed elements includes a special lighting pen, a video camera, an image signal processing circuit, an image extracting circuit, a microprocessor, a pattern recognition, analysis, and tracking circuits, a program controller, etc. Thereby, a video signal is processed outside a computer to form as a signal similar the output signal of a mouse for being transferred to a computer, wherein the operation of this converter is very complicated, hi-processing powered and with a large storing quantity. It is even greater than that of a HOST PC, thus the operation thereof is very slow and will not match the action of the computer operator, in addition, the cost thereof is very expensive so not to be widely used. Another, during operation, another special pen or other objects are necessary and the pose of a hand may not changed as pleasure, thus this design could not match the requirement of ergonomics. While the clicking selecting function is inconvenient and irrational.