Phase Unwrapping By Regions

Jeffrey J. Gierloff

doi:10.1117/12.967466

1 January 1987 Phase Unwrapping By Regions

Jeffrey J. Gierloff

Proceedings Volume 0818, Current Developments in Optical Engineering II; (1987) https://doi.org/10.1117/12.967466
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

An algorithm has been developed for phase unwrapping data that has significant noise content or phase variations. Existing unwrapping algorithms typically operate on a point by point basis. A faulty unwrapping decision will produce an error which will propagate through the rest of the array. The simpler algorithms are sensitive to noisy data or large phase variations. A new algorithm unwraps the data by identifying regions where there are no phase unwrap discontinuities. The regions are then unwrapped by conparing the edge of the region with adjacent regions; and shifting the entire region by 2*pi.

Citation Download Citation

Jeffrey J. Gierloff "Phase Unwrapping By Regions", Proc. SPIE 0818, Current Developments in Optical Engineering II, (1 January 1987); https://doi.org/10.1117/12.967466

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