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Figure 1
(a) A typical projection X-ray image (scale bar and color legend in the inset). (b) Overlay of the image at 0° (red) and the horizontally flipped image at 180° (green). A magnified view of the highlighted area (white box) is displayed in the inset, showing mismatch of features due to translation and tilting of the rotation axis with respect to the central column of the image. (c) SIFT-identified matching features between the 0° image and the horizontally flipped 180° image. Each set of two white points connected by a line indicates a pair of matching features.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 2| February 2015| Pages 452-457
doi:10.1107/S160057751402726X
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