RT Journal Article T1 Fast two-dimensional simultaneous phase unwrapping and low-pass filtering A1 Quiroga Mellado, Juan Antonio A1 Estrada, Julio C. A1 Servín Guirado, Manuel A1 Navarro, Miguel A. AB Here, we present a fast algorithm for two-dimensional (2D) phase unwrapping which behaves as a recursive linear filter. This linear behavior allows us to easily find its frequency response and stability conditions. Previously, we published a robust to noise recursive 2D phase unwrapping system with smoothing capabilities. But our previous approach was rather heuristic in the sense that not general 2D theory was given. Here an improved and better understood version of our previous 2D recursive phase unwrapper is presented. In addition, a full characterization of it is shown in terms of its frequency response and stability. The objective here is to extend our previous unwrapping algorithm and give a more solid theoretical foundation to it. PB The Optical Society of America SN 1094-4087 YR 2012 FD 2012-01-30 LK https://hdl.handle.net/20.500.14352/43907 UL https://hdl.handle.net/20.500.14352/43907 LA eng NO © 2012 Optical Society of America DS Docta Complutense RD 4 abr 2025