Two-Wavelength Transport of Intensity Equation for Phase Unwrapping.
Frontiers in Artificial Intelligence and Applications（2016）
Abstract
A novel method based on two-wavelength transport of intensity equation (TW-TIE) is proposed for phase unwrapping under large-step discontinuities condition. With a wrapped phase obtained by interferometry setup, two different wavelength illuminations are used to obtain two different intensity images, then TW-TIE is applied to phase unwrapping. Numerical experiments are presented to demonstrate the feasibility and effectiveness of our proposed method.
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Key words
phase unwrapping,transport of intensity equation,two wavelength illuminations,fast Fourier transform solvers
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