1 January 1987 Phase Unwrapping By Regions
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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.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jeffrey J. Gierloff, "Phase Unwrapping By Regions", Proc. SPIE 0818, Current Developments in Optical Engineering II, (1 January 1987); doi: 10.1117/12.967466; https://doi.org/10.1117/12.967466

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