Article
Phase tracking with a spatial synchronous method
Fecha
2007Registro en:
10.1364/AO.46.003462
Autor
Munoz-Maciel, J.
Pena-Lecona, F.G.
Castillo-Quevedo, C.
Casillas-Rodriguez, F.J.
Duran-Ramirez, V.M.
Mora-Gonzalez, M.
Rodriguez-Zavala, J.G.
Institución
Resumen
A modified form of a phase tracking method to demodulate a single fringe pattern is presented. Phase values from local areas of the interferogram are recovered by means of a spatial synchronous technique instead of solving the set of nonlinear equations obtained from the implementation of the ordinary algorithm. This results in a significant speed improvement of the method. Additionally, the robustness against noise is maintained, and the sensitivity to contrast variations is decremented with respect to the phase tracking technique. © 2007 Optical Society of America.