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RETRACTED: Improved reliability-guided phase unwrapping algorithm based on the fringe modulation and second-order phase difference
- Source :
- Optik. 118:175-180
- Publication Year :
- 2007
- Publisher :
- Elsevier BV, 2007.
-
Abstract
- The Mask Cut unwrapping algorithm, a cross between Goldstein's Branch Cut and quality-guided path following algorithm, is generally successful at unwrapping phase; but if no good quality map, wrong placement of branch cuts or bad phase-unwrapping path, it will fail to confine the errors to the low-quality regions and lead to the failure of phase unwrapping. To overcome these drawbacks, we propose a new reliability function (i.e. quality map) based on the fringe modulation (the visibility of the fringes) and second-order phase difference, and improve the reliability-guided phase-unwrapping algorithm. Considering the residues, we use the reliability information to guide the placement of branch cuts and to optimize the phase-unwrapping path. The simulated and experimental data both demonstrate the validity of the new reliability-guided phase-unwrapping method.
- Subjects :
- Computer science
Visibility (geometry)
Phase (waves)
Function (mathematics)
GeneralLiterature_MISCELLANEOUS
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Quality (physics)
Modulation (music)
Path (graph theory)
Profilometer
Electrical and Electronic Engineering
Algorithm
Reliability (statistics)
Subjects
Details
- ISSN :
- 00304026
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Optik
- Accession number :
- edsair.doi...........1da6f6c692052324c677cdcf74f51040