关键词: 关键词: 信息处理技术, 机场跑道, 毁伤评估, 目标检测, 最小起降窗口搜索

Abstract: Abstract: Focusing on the airport runway functional damage assessment，an airport runway functional damage assessment method based on image analysis was proposed. First, every crater region was extracted as training sample. Next, a discriminative dictionary was learned. Then the appearance of crater was determined based on the response of its sparse coding for each detection window, and the craters spread binary image was obtained after locking crater location. On this basis, an improved minimum flying-off window search algorithm was proposed, with which the quantity of valid flying-off windows , the residual ratio of quantity and the residual ratio of length was obtained by scanning the craters spread binary image, then damage assessment was realized by making use of the three indicators. The experiment results in real image database show that the proposed algorithm is suitable for small size problem, the crater detection accuracy rate is above 90% and the omission rate is below 5%, a reasonable and feasible functional damage assessment of airport runways is obtained just by making use of attacked images.

Key words: Keywords: information processing, airport runway, damage assessment, object detection, minimum flying-off window scanning