Position measuring apparatus using a pair of electronic cameras

摘要: A distance measuring apparatus applicable to a mobile body such as an automotive vehicle which detects position of obstacle (a target object) without influence ambient environment white line and determines positions lateral ends the is disclosed. In apparatus, pair electronic cameras are mounted on body, optical axes both being mutually parallel each other directed toward forward direction or rearward horizontal their photograph planes aligned same line. Using new stereophotographic image processing, deriving parallax for window from calculated difference in between one another image, voting table x position, calculating basis value at any result indicates higher value, range respective windows corresponding vertical end histogram histograms and, selecting present longitudinal edges located vicinity among searched edges.