2-D Phase Unwrapping in DAS with Transport of Intensity Equation

Phase Unwrapping Intensity
DOI: 10.1364/ofs.2023.th6.20 Publication Date: 2024-02-15T16:24:05Z
ABSTRACT
We introduce a 2-D phase unwrapping algorithm to DAS, surpassing dynamic range limits of conventional methods. Considering inter-trace phases, it enhances unwrap ability, mitigating stripe error caused by low SNR.
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