Anisotropic diffusion filtering and phase unwrapping for interferometric SAR

This paper describes a novel variational optimization model with anisotropic diffusion for interferometric synthetic aperture radar (SAR) phase unwrapping, which is derived with the use of a global cost function to minimize the phase discontinuities in the unwrapped phase map and reduce noise. Numerical results proved that our phase unwrapping algorithm is robust and reliable on high noisy phase data with discontinuation.