RT Journal Article T1 Separation of isoclinics and isochromatics from photoelastic data with a regularized phase-tracking technique A1 Quiroga Mellado, Juan Antonio A1 González Cano, Agustín AB We present the application of a regularization algorithm to the processing of photoelastic fringe patterns. The method used is a modified regularized phase-tracking (RPT) algorithm applied to phase-shifted images. In particular, we present an algorithm for isoclinic-isochromatic separation that uses only five images. In the case of isoclinics the method can deal with problems associated with modulation of isochromatics and with isotropic points by means of a modified cost functional. With respect to the isochromatics the problems associated with regions of high fringe density are solved in a robust way by the unmodified RPT algorithm by use of the modulation information. The performance of the method is discussed, and experimental results are presented. PB The Optical Society of America SN 0003-6935 YR 2000 FD 2000-06-10 LK https://hdl.handle.net/20.500.14352/58789 UL https://hdl.handle.net/20.500.14352/58789 LA eng NO © 2000 Optical Society of America.During realization of this study J. A. Quiroga was supported in part by a post-doctoral grant from the Universidad Complutense de Madrid and by the Becas Internacionales Flores-Valles program, Spain. We acknowledge the support of the Centro de Investigaciones en Óptica (CIO), León, México. NO Universidad Complutense de Madrid NO Centro de Investigaciones en Óptica (CIO), León, México NO Becas Internacionales Flores-Valles program, Spain DS Docta Complutense RD 9 abr 2026