DInSAR形变异常的建筑物违章检测方法

Change detection method of urban illegal buildings based on the abnormal deformation of DInSAR

针对面对大区域变化检测时采用多源遥感影像进行建筑物违章变化检测面临效率低、准确性差的问题,该文提出了一种基于合成孔径雷达差分干涉测量(DInSAR)异常形变的多源遥感建筑物违章变化检测方法。首先,对建筑物DInSAR形变特性进行分析,利用DInSAR形变异常分析对建筑物违章变化区域进行定位;其次,依据DInSAR形变分析确定的建筑物变化范围,采用光学影像进行局部变化检测,实现DInSAR与光学影像融合的建筑物违章变化检测;最后,利用该方法对某区域的DInSAR影像和光学影像进行建筑物违章检测实验。结果表明,该方法能够快速定位违章建筑物,有效检测建筑物违章图斑。

Aiming at the problem that the detection efficiency and accuracy of illegal buildings with multi-source remote sensing data in large area is low,a method of the detection of illegal buildings using multi-source images was proposed in this paper,which was based on the abnormal deformation of differential interferometric synthetic aperture radar(DInSAR).First,the buildings deformation characteristics with DInSAR was analyzed,which was used to locate the change buildings.Then,according to the change range of buildings,the partial change of illegal buildings was detected with the optical images.Finally,DInSAR and optical images were used to detect illegal buildings in some regions by the proposed method.The results showed that this method could locate the illegal buildings quickly,and detect the change buildings effectively.