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Phase Difference-Based Multichannel Phase Unwrapping.
- Source :
-
IEEE Transactions on Image Processing . Jul2005, Vol. 14 Issue 7, p960-972. 13p. - Publication Year :
- 2005
-
Abstract
- This work addresses the derivation of the phase difference-based maximum likelihood (ML) phase unwrapping algorithm. To this end, we derive the joint statistics of the phase differences on a two-dimensional grid for the multichannel case, where several scaled wrapped phase values are available. Subsequently, we determine and study the structure of the phase difference-based ML estimator and compare it to known phase unwrapping techniques. This work allows us to frame single and multichannel algorithms in a common formulation. Moreover, among the known single-channel phase difference-based procedures, we identify those attaining an ML solution. We also show that multichannel phase difference-based and, recently proposed, phase-based ML algorithms achieve equivalent solutions. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ALGORITHMS
*ALGEBRA
*MATHEMATICS
*STATISTICS
*TECHNOLOGY
*FOUNDATIONS of arithmetic
Subjects
Details
- Language :
- English
- ISSN :
- 10577149
- Volume :
- 14
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Image Processing
- Publication Type :
- Academic Journal
- Accession number :
- 17394111
- Full Text :
- https://doi.org/10.1109/TIP.2005.849302