Iterative Synthetic Aperture Radar Image Registration using View Synthesis (IIRVS)

Image registration is a preprocessing operation in several synthetic aperture radar (SAR) image applications. View synthesis approach is incorporated in the standard pipeline of feature based image registration, to feed feature detector with additional synthetic views of an image. Incorporating view synthesis improves the registration performance albeit at the cost of additional memory and time to be spent on generation of views and feature extraction across all the views. Hence an iterative approach is proposed which gradually increases the views to be generated till the images are registered. The evaluation results show that the proposed approach achieves high-precision and robust registration of look-angle varied TerraSAR-X images.