Abstract

A technique for unwrapping subsampled phase maps is presented. The subsampled phase map is obtained by standard phase-shifting methods that use subsampled interferograms. The technique then estimates the wrapped local curvature of the subsampled phase map. This local curvature is then low-pass filtered with a free-boundary low-pass filter to reduce phase noise. Finally, the estimated local curvature of the wave front is integrated by the use of a least-squares technique to obtain the searched continuous wave front.

© 1996 Optical Society of America

Phase unwrapping through demodulation by use of the regularized phase-tracking technique

Manuel Servin, Francisco Javier Cuevas, Daniel Malacara, Jose Luis Marroquin, and Ramón Rodriguez-Vera
Appl. Opt. 38(10) 1934-1941 (1999)

Unwrapping of interferometric phase-fringe maps by the discrete cosine transform

D. Kerr, G. H. Kaufmann, and G. E. Galizzi
Appl. Opt. 35(5) 810-816 (1996)

Disk-growing algorithm for phase-map unwrapping: application to speckle interferograms

C. De Veuster, P. Slangen, Y. Renotte, L. Berwart, and Y. Lion
Appl. Opt. 35(2) 240-247 (1996)

Phase unwrapping with a regularized phase-tracking system

Manuel Servin, Jose Luis Marroquin, Daniel Malacara, and Francisco Javier Cuevas
Appl. Opt. 37(10) 1917-1923 (1998)

Sub-Nyquist null aspheric testing using a computer-stored compensator

M. Servin, Daniel Malacara, Z. Malacara, and Valentine I. Vlad
Appl. Opt. 33(19) 4103-4108 (1994)