Rigid registration algorithm based on the minimization of the total variation of the difference map

Xiao, X.; Xu, Z.; Hou, D.; Yang, Z.; Lin, F.

doi:10.1107/S1600577522005598

Journal of Synchrotron Radiation Journal of
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Figure 6
Registration results with a TXM XANES dataset. (a) Global reference image. (b) Average Poisson noise-to-signal ratio as a function of image index in the region of interest marked with the red box in (a). (c) Line plot along the line in (a). The dip position indicates the crack position in the line. (d)–(f) Line plots for each image in the dataset after the registrations with FPC, SSD and TVDM, respectively. With an ideal registration, the dip positions in all the lines should be the same. (g)–(i) XANES spectra at points A and B marked in (a) based on aligned image stacks with FPC, SSD and TVDM, respectively. Alignment errors have more impact on the spectra in the particles' boundary regions.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 29| Part 4| July 2022| Pages 1085-1094

https://doi.org/10.1107/S1600577522005598

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