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通过分析建筑物在不同极化数据上后向散射特征的不同,提出一种基于双极化SAR数据的建筑栋数信息检测方法.该方法主要包括建筑初检测、联合HH与VV数据的检测结果修正以及使用面积阈值去除虚警3个主要部分.最后,在双极化TerraSAR—X图像上进行了验证和评价,并与基于单极化SAR数据进行建筑栋数检测得到的结果进行对比,显示了方法的有效性.
By analyzing the difference of backscattering characteristics of buildings on different polarization data, this paper proposes a method of building information detection based on dual-polarized SAR data, which mainly includes the construction of early detection, combined with the detection results of HH and VV data Correction and the use of area threshold to remove the three main parts of the false alarm.Finally, the verification and evaluation on dual-polarized TerraSAR-X images were carried out and compared with the results of building block detection based on single-polarized SAR data, The effectiveness of the method.