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Scientific Publication Citing Dragonfly

Fast projection matching for X-ray tomography

Chun-Chieh Wang (1), Cheng-Cheng Chiang (1), Biqing Liang (2), Gung-Chian Yin (1), Yi-Tse Weng (2), and Liang-Chi Wang (3)
Scientific Reports, 7, Issue 3691, June 2017. DOI: 10.1038/s41598-017-04020-0


X-ray micro-CT, X-ray tomography, Electron tomography, Tomography reconstruction, Projection matching method, Faproma algorithm


X-ray 3D tomographic techniques are powerful tools for investigating the morphology and internal structures of specimens. A common strategy for obtaining 3D tomography is to capture a series of 2D projections from different X-ray illumination angles of specimens mounted on a finely calibrated rotational stage. However, the reconstruction quality of 3D tomography relies on the precision and stability of the rotational stage, i.e. the accurate alignment of the 2D projections in the correct three-dimensional positions. This is a crucial problem for nano-tomographic techniques due to the non-negligible mechanical imperfection of the rotational stages at the nanometer level which significantly degrades the spatial resolution of reconstructed 3-D tomography.

How Our Software Was Used

Dragonfly was used to perform image segmentation, visualization, and analysis.

Author Affiliation

(1) National Synchrotron Radiation Research Center, 30076, Hsinchu, Taiwan.
(2) Department of Earth Sciences, National Cheng Kung University, 70101, Tainan, Taiwan.
(3) Collection Management Department, National Taiwan Museum, 10047, Taipei, Taiwan.

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