Two-dimensional phase unwrapping with a multichannel least-mean-square algorithm

Jin Jung Chyou*, Shean-Jen Chen, Yi Kuang Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


This paper presents a computationally efficient two-dimensional phase-unwrapping method based on a multichannel least-mean-square algorithm. The performance of the proposed method is evaluated by applying phase unwrapping to several simulated very noisy images and to a genuine noisy interferometrical image taken from a five-step phase-shift interferogram obtained from a surface plasmon resonance imaging biosensing experiment. The results confirm that the proposed method is more widely applicable, more computationally efficient, and more robust in the presence of noise than the representative methods presented in this paper.

Original languageEnglish
Pages (from-to)5655-5661
Number of pages7
JournalApplied Optics
Issue number30
StatePublished - 20 Oct 2004

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