Multi-angle SAR images for earthquake damage assessment

Space-borne synthetic aperture radar (SAR) is very useful due to the whole-day-work capability, which has been widely used in earthquake damage assessment and rescue. This paper presents a novel method for earthquake damage assessment by using multi-angle SAR images. The scatter of building, especially for the damaged buildings, will change with the elevation angle and squint angle, which means a serious lack of information. In order to get more information, the multi-angle SAR images should be obtained. Moreover, a fast and accurate image information algorithm should be used. Furthermore, image geometry correction is realized in slant range plane. After correction operation, fusion operation is implemented. Finally, the simulation results justify the proposed method.