Phase difference-based multichannel phase unwrapping
| Autor: | Fornaro G., Pauciullo A., Sansosti E. |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | IEEE transactions on image processing 14 (2005): 960–972. info:cnr-pdr/source/autori:Fornaro G.; Pauciullo A.; Sansosti E./titolo:Phase difference-based multichannel phase unwrapping/doi:/rivista:IEEE transactions on image processing/anno:2005/pagina_da:960/pagina_a:972/intervallo_pagine:960–972/volume:14 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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