Comparison of different phase retrieval algorithms
2017
X-ray phase contrast imaging is attracting more and more interest. Since the phase cannot be measured directly
an indirect method using e.g. a grating interferometer has to be applied. This contribution compares three
different approaches to calculate the phase from Talbot-Lau interferometer measurements using a phase-stepping
approach. Besides the usually applied Fourier coefficient method also a linear fitting technique and Taylor series
expansion method are applied and compared.
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