Phase unwrapping algorithms by solving the Poisson equation

Several direct and iterative phase unwrapping algorithms based on solving the Poisson equation are presented.

Several direct and iterative phase unwrapping algorithms based on solving the Poisson equation are presented. The differences between them are the way to calculate the input and output of the discrete Poisson equation. Some of the simulated and experimental data are also provided to show the performance of those algorithms.
References:
1.Z. Zhao, H. Zhang, etc, Robust 2D phase unwrapping algorithm based on the transport of intensity equation, Measurement Science and Technology, 30 (2018)
015201
2.Z. Zhao, H. Zhang, etc, Phase unwrapping algorithms based on solving the Poisson equation：A comparative review, submitted to Optics and Lasers in Engineering