Abstract
The first part of this paper deals with the motion parallax principle. This principle is similar to the optical flow theory with the assumption of rigid visual scenes. It will show from simulation studies that it is possible to obtain the best results if the camera is moved along the perpendicular axis to the optical direction.However, this method is not efficient for our goal, and in a second part, this paper will develop the focus principle. The focus principle is based on a measure of keenness of sight. When the keenness of sight for a scene point is good then the optical system is accommodated on this point. We can measure the focal and the focused range of the optical system and then compute the range for this point.In the last part, this paper describes our visual prototype built with a smart photodiode chip MAPP2200TM coupled with a transputer T800TM and a motorised lens.
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