Building detection by local region features in SAR images

The buildings are very complex for detection on SAR images, where the basic features of those are shadows. There are many different representations for SAR shadow. As result it is no possible to use convolutional neural network for building detection directly. In this article we give property analysis of SAR shadows of different type buildings. After that, each region (ROI) prepared for training of building detection is corrected with its own SAR shadow properties. Reconstructions of ROI will be put in a modified YOLO network for building detection with better quality result.The work was partially funded by Public Welfare Technology Applied Research Program of Zhejiang Province under Grant (No.LGJ18F020001, LGF18F030004, LGJ19F020002 , and LGF19F020016), and by National introduction project of senior foreign experts under Grant No.G20200216025. Introduction Project of Zhejiang Province under Grant (No.100), and project of BRFFI F18R-218 "Development and experimental research of descriptive methods for automatization of biomedical images analysis"