关键词: 建筑物高度;识别与监测;数字表面模型;兴趣点

Abstract: In view of the current building recognition and monitoring,the shadow height measurement method based on single highresolution remote sensing image and the stereo image pair method based on multi-view image are independent of the recognition of the contour or name of the building and the height monitoring,resulting in low automation level,high data redundancy and cost.Based on the data of digital surface model (DSM) and point of interest (POI),this paper proposes an integrated method for building recognition and monitoring in airport clearance area,and verifies the feasibility of this method by taking Shenzhen Baoan International Airport as a test area.The experimental results show that:① The accuracy of this method in building recognition and monitoring only depends on the accuracy of DSM,but there is no limitation on the data source of DSM.② Based on the height change rate of potentially dangerous buildings,the irregular dynamic monitoring can ensure the safety of airport clearance area during the monitoring interval and reduce the redundancy and cost of data problems caused by repeated identification and monitoring of all buildings.

Key words: building height;identification and monitoring;DSM;POI