SAR Image Rectification Based on Vector Map

Abstract

The automatic geometric rectification of space-borne SAR remote sensing images is generally achieved by automatic matching with the optical control base map. However, the optical map has the problem that its coverage is limited and the data cannot be updated in time. With the continuous development of digital maps, the coverage and accuracy of vector maps continue to increase. In order to expand the source of data for correction processing of SAR remote sensing images, an automatic SAR image correction method based on vector map is proposed. Application experiments show that the geometric positioning accuracy of SAR images can be improved significantly based on vector map.