RT Journal Article T1 Adaptive monogenic filtering and normalization of ESPI fringe patterns A1 Quiroga Mellado, Juan Antonio A1 Guerrero, J. A. A1 Marroquín Zaleta, José Luis A1 Rivera Meraz, M. AB A technique is presented for filtering and normalizing noisy fringe patterns, which may include closed fringes, so that single-frame demodulation schemes may be successfully applied. It is based on the construction of an adaptive filter as a linear combination of the responses of a set of isotropic bandpass filters. The space-varying coefficients are proportional to the envelope of the response of each filter, which in turn is computed by using the corresponding monogenic image [Felsberg and Sommer, IEEE Trans. Signal Process. 49, 3136 (2001)]. Some examples of demodulation of real Electronic Speckle Pattern Interferometry (ESPI) images patterns are presented. PB Optical Society of America SN 0146-9592 YR 2005 FD 2005-11-15 LK https://hdl.handle.net/20.500.14352/50803 UL https://hdl.handle.net/20.500.14352/50803 LA eng NO © 2005 Optical Society of America.J. L. Marroquín (jlm@fractal.cimat.mx) and M. Rivera were supported in part by grants 46270 and40722 from the Consejo Nacional de Ciencia y Tecnología, México; J. A. Quiroga was supported bygrant DPI2002-02104 from the Ministerio Español de Ciencia y Tecnología. NO Consejo Nacional de Ciencia y Tecnología, México NO Ministerio Español de Ciencia y Tecnología DS Docta Complutense RD 26 feb 2026