DescriptionString: Reconstructed CT slices for skull of Heterotis niloticus (University of Michigan Museum of Zoology catalog number UMMZ Fish 195004) as a series of TIFF images. Raw projections are not included in this dataset. The reconstructed slice data from the scan are offered here as a series of unsigned 16-bit integer TIFF images. The upper left corner of the first image (*_0000.tif) is the XYZ origin.
MethodString: Specimen UMMZ Fish 195004_Heterotis niloticus_skull was scanned with a Nikon XT H 225ST uCT system housed in the Department of Earth and Environmental Sciences at the University of Michigan. Scans were collected with the following settings: energy settings, 105 kV, 155 uA; source to object distance, 199.269214630127 mm; source to detector distance, 1114.153 mm; scanned with 3141 projections; voxel size, x = 0.0357705394992857 mm y = 0.0357705394992857 mm z = 0.0357705394992857 mm; slice dimension (in pixels), x = 2000, y = 1720; number of slices, 1985 16-bit TIFF images. Original floating point grey values were scaled to span the unsigned 16-bit integer range using an offset of 1296.1834716796875 and a scale factor of 28.511795988155818, where 16output = SCALE * (32input + OFFSET). Additional metadata can be found in the xtekct, ctprofile.xml, and UMMPCombinedMetadata.json files.
License: Usage of the associated data is restricted. The terms of use as of date of metadata creation (2024-02-26 15:43:01.027237) are included in the file _LICENSE.txt. Please see https://lsa.umich.edu/ummz/ct-scanner/digital-data-usage.html for current terms, as these may have changed.