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Two-Dimensional Phase Unwrapping by Direct Elimination of Rotational Vector Fields from Phase Gradients Obtained by Heterodyne Techniques.
- Source :
- Optical Review; Nov1998, Vol. 5 Issue 6, p374-379, 6p
- Publication Year :
- 1998
-
Abstract
- Noting the analogy between electro-magnetic fields and the vector fields of phase gradients obtained by heterodyne techniques, we propose a new algorithm for least-squares phase unwrapping. Instead of solving a Poisson equation for the unwrapped phase map or using Green’s formulation, we directly remove singular points or residues from the measured phase map by superposing sign-reversed vortex fields which cancel out the rotational vector fields associated with the phase singular points. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13406000
- Volume :
- 5
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Optical Review
- Publication Type :
- Academic Journal
- Accession number :
- 49898107
- Full Text :
- https://doi.org/10.1007/s10043-998-0374-4