An Algorithm for Recognizing Runway Based on Improved Radon Transformation

In order to achieve runway recognition correctly, aiming at the characteristics of area grey and edge line of runway, an algorithm for recognizing runway based on improved Radon transformation is presented. Firstly, the edge detectors are used to get edge image, and straight lines are extracted with improved Radon transformation in the edge image. Then straight lines are connected and parallel straight lines are extracted. Finally, the runway is recognized correctly based on the characteristics of area grey. Many experiments show that this method can find runway of airport exactly and quickly in the aerial image, and is robust for the influence of cloud cover and noise. Experimental results verify the algorithm´s effectiveness.