CAJ | 학술논문

城市变化监控能够有效帮助政府机关和城区规划部门更新地图并制定长远的发展计划。论文提出了一个基于 Log-Gabor 滤波器快速提取遥感图像中居民区域的新方法。方法分为三步：首先使用 Log-Gabor 滤波器提取遥感图像中具有边缘方向性的城市居民区域特征；然后在此基础上“耦合”相同居民区域不同方向滤波器提取出来的纹理特征，进而获得完整的居民区域；最后利用 Otsu 方法在结果图像中对居民区域进行标记和分割。实验将本论文方法同传统纹理提取手段共生矩阵分析方法进行比较证明了本文方法的优越性。
성시변화감공능구유효방조정부궤관화성구규화부문경신지도병제정장원적발전계화。논문제출료일개기우 Log-Gabor 려파기쾌속제취요감도상중거민구역적신방법。방법분위삼보：수선사용 Log-Gabor 려파기제취요감도상중구유변연방향성적성시거민구역특정；연후재차기출상“우합”상동거민구역불동방향려파기제취출래적문리특정，진이획득완정적거민구역；최후이용 Otsu 방법재결과도상중대거민구역진행표기화분할。실험장본논문방법동전통문리제취수단공생구진분석방법진행비교증명료본문방법적우월성。
Monitoring urbanization may help government agencies and urban region planners in updating land maps and forming long-term plans accordingly .In this paper ,a novel method for fast extracting residential area from remote sensing images based on log-Gabor filter is proposed .The method is divided in three steps .Firstly ,the edge-oriented urban charac-teristics in a remote sensing image are detected using log-Gabor filter .Secondly ,with the filtering orientations perpendicular to each other ,two log-Gabor filter response images to suppress the noise and acquire a smooth spatial region .Thirdly ,a set of smooth regions served as residential areas can be extracted using Otsu's method .The comparison of our method with the classical texture analyzing method of co-occurrence matrix demonstrates its superiority .