2D simultaneous phase unwrapping and filtering: A review and comparison

► We show an Infinite Impulse Response (IIR) linear system for phase unwrapping. ► A performance comparison with two very known phase unwrapping methods is shown. ► Goldstein's methods and the regularized phase tracker. ► This is a very robust, fast and simple phase unwrapping method that cleans noise and unwraps the phase in the same process.