Noise Reduction in Phase Maps with 2 pi Phase Jumps by Means of the Heat Equation.
A new algorithm for filtering noise in phase maps that contain 2pi discontinuities is presented. The algorithm is based on a thermal model that uses the heat equation to perform low-pass filtering. A similar approach is used in image processing for filtering noise, but the edges are generally distorted because of their inherent high frequencies. A solution that consists in redefining the spatial derivatives is proposed here. Simulation results are presented and discussed.
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