Vision-based Runway Recognition for UAV Autonomous Landing

To meet the request of recognizing the runway synchronously and precisely for the UAV during the autonomous landing, the paper presents a method for automatic recognizing airport runway based on the knowledge of vision. Making full use of the characteristics of the runway region and boundary, this method first gets the approximate region by projection, then obtains the boundary by fitting line to recognize the runway using an algorithm combined Hough transform with least square according to the boundary characteristic of the runway. The test results prove that this method can recognize the runway quickly and accurately.