Patent US 4,628,210

Disclosed herein is a binocular artificial vision system including left and right hand video cameras providing left and right video signals to a stereo correlator providing a correlated distance signal at the output thereof. The left and right hand video cameras have overlapping fields-of-view, the stereo correlator derives a quality of correlation signal as well as a range distance signal from the left and right video signals, and means are provided to vary the effective eyebase of the video cameras in response to the quality of correlation signal.