摘要
基于SAR影像进行建筑物提取与高度反演,可行的技术方法种类繁多。以使用的影像数量和分辨率为序,以使用的灰度、相位、极化信息为核心,分别从二维提取、三维高度反演两个方面总结了这一技术主题的研究发展现状;并结合当前SAR影像高分辨率、全极化的数据特点和国际最新研究动向,对这一研究方向进行了展望。
Many methods have been proposed for building area extraction and building 3-D reconstruction from SAR images. However,the basic theory and process are diverse. To get better result,it is important for these methods to make full use of the information,including amplitude,polarization,and phase in SAR images. From this point of view, this paper reviews the current techniques and methods sequentially. The methods used for building area extraction are introduced by the order of used middle-resolution image, high-resolution image,time series images, fusion of SAR images and optical images. The methods used for building 3-D reconstruction are classified as radar photogrammetry and radar interferometry. Finally, some comments and promised ideas are given such as building height retrieval based on precise electromagnetic calculation and simulation, building area extraction based on accurate polarimetric decomposition tech niques,and SAR image analysis based on new techniques from computer vision.
出处
《遥感技术与应用》
CSCD
北大核心
2012年第4期496-503,共8页
Remote Sensing Technology and Application
基金
国家自然科学基金项目(40871191)
中国科学院对地观测与数字地球科学中心主任科学基金资助项目(09ZZ101101B)
