Quiroga Mellado, Juan AntonioEstrada, Julio C.Vargas Balbuena, JavierFlores Moreno, Mauricio J.2023-06-202023-06-202012-11-121559-128X10.1364/AO.51.007549https://hdl.handle.net/20.500.14352/43903© 2012 Optical Society of America.In this work, we show a windowed phase-unwrapping technique that uses a first-order dynamic system and scans the phase following its iso-phase contours. In previous works, we have shown that low-pass first-order dynamic systems are very robust and useful in phase-unwrapping problems. However, it is well known that all phase-unwrapping methods have a minimum signal-to-noise ratio that they tolerate. This paper shows that scanning the phase within local windows and using a path following strategy, the first-order unwrapping method increases its tolerance to noise. In this way, using the improved approach, we can unwrap phase maps where the basic dynamic phase-unwrapping system fails. Tests and results are given, as well as the source code in order to show the performance of the proposed method.engjournal articlehttp://dx.doi.org/10.1364/AO.51.007549http://www.opticsinfobase.org/open access535Fringe-Pattern AnalysisInterferometryAlgorithmsMapsÓptica (Física)2209.19 Óptica Física