@misc{epple_unwrapping_differential_2013, 
author={Epple, F.M., Potdevin, G., Thibault, P., Ehn, S., Herzen, J., Hipp, A., Beckmann, F., Pfeiffer, F.},
title={Unwrapping differential x-ray phase-contrast images through phase estimation from multiple energy data},
year={2013},
howpublished = {journal article},
doi = {https://doi.org/10.1364/OE.21.029101},
abstract = {We present a spectral phase unwrapping approach for grating-based differential phase-contrast data where the unwrapped interferometer phase shift is estimated from energy discriminated measurements using maximum likelihood principles. We demonstrate the method on tomographic data sets of a test specimen taken at different x-ray energies using synchrotron radiation. The proposed unwrapping technique was demonstrated to successfully correct the data set for phase wrapping.},
note = {Online available at: \url{https://doi.org/10.1364/OE.21.029101} (DOI). Epple, F.; Potdevin, G.; Thibault, P.; Ehn, S.; Herzen, J.; Hipp, A.; Beckmann, F.; Pfeiffer, F.: Unwrapping differential x-ray phase-contrast images through phase estimation from multiple energy data. Optics express. 2013. vol. 21, no. 24, 29101-29108. DOI: 10.1364/OE.21.029101}}