Media 000114985: Skull
Restricted Download
Type Volumetric Image Series
Modality X-Ray Computed Tomography (CT/microCT)
Media represents biological specimen
Managed by

Media Display

In Collections

Project
· Public

TAGS

No tags found.

GENERAL DETAILS Field Definitions

Media ID
000114985
Media type
Volumetric Image Series
Object element or part
skull
Object represented
Object taxonomy
Eosaniwa koehni
Side
--
Orientation
--
Short description
--
Full description
Migrated MorphoSource 1 Media Group Title: HRXCT scan Migrated MorphoSource 1 Media File Description: University of Texas High-Resolution X-ray CT Facility Archive \\r\\n\\r\\nMaisano:\\r\\nEosaniwa: Scans of the fossil skull and partial postcranium of Eosaniwa koehni (FMNH XXXVII/57) for Dr. Jessie Maisano of the University of Texas at Austin and ATOL. Specimen scanned by Matthew Colbert 30 November 2004 to 1 December 2004 in 3 parts (636, 41 and 14 scans) due to computer errors. \\r\\n\\r\\n16bitrot: 1024x1024 16-bit TIFF images. P250D, 420 kV, 1.8 mA, 160% offset, no filter, empty container wedge, slice thickness 0.25 mm, S.O.D. 580 mm, 1340 views, 1 ray per view, inter-slice spacing 0.2 mm, field of reconstruction 189 mm (maximum field of view 189.6762 mm), reconstruction offset 8000, reconstruction scale 2000. Ring-removal processing done by Susan Garlock on raw sinograms using IDL routine “RK_SinoRingProcSimul” with parameters “binwidth=21” and “bestof5=11.” The 3 datasets were individually reconstructed using a parameter file with variable reconstruction angles, starting at -13.5 degrees and adding approx. 0.023 degrees per scan in each dataset, then recombining all in the correct sequence. Additional work was done on the 14-scan group in Photoshop, to better align these data with the original data. Following recombination, rotation correction done by Susan Garlock using IDL routine “DoRotationCorrection.” Total final slices = 691.\\r\\nScanned in plan mode, recalibrating every 40 slices. During the course of the November 30 scan, the first 41 images were lost, plus the final image was dropped from each set of 40, so images were recollected on December 1 and slices reassembled into the correct locations in the full sequence. \\r\\n\\n\\nRelated URL: http://digimorph.org/specimens/Eosaniwa_koehni/ Migrated MorphoSource 1 Media Group Description: Related URL: http://digimorph.org/specimens/Eosaniwa_koehni/
Creator
--
Date created
--
Date uploaded
April 28, 2020

FILE OBJECT DETAILS Field Definitions

File name
File format(s)
ZIP archive, TIFF
File size
294 MB
Image width
989
Image height
272
Color space
BlackIsZero
Color depth
16
Compression
--
X pixel spacing
0.180000
Y pixel spacing
0.180000
Z pixel spacing
0.200000
Pixel spacing units
Mm
Slice thickness
--
Number of images in set
691

IMAGE ACQUISITION AND PROCESSING AT A GLANCE Field Definitions

Number of parent media
0
Number of processing events
1 (0 steps)
Modality
X-Ray Computed Tomography (CT/microCT)
Device
Varian Medical Systems (Bio-Imaging Research, Inc) ACTIS scanner with GE Titan X-ray source, The University of Texas High-Resolution X-ray Computed Tomography Facility (University of Texas at Austin)

OWNERSHIP AND PERMISSIONS Field Definitions

Data managed by
Data uploaded by
Publication status
Restricted Download
Download reviewer
IP holder
Geiseltal Museum
Copyright statement
Morphosource use agreement type
Standard
Permits commercial use
Commercial Use Not Permitted
Permits 3D use
3D Printing Limited
Required archival of published derivatives
On Any Repository
Funding attribution
EF-0334961, DBI-1902242
Publisher
--
Cite as
Migrated MorphoSource 1 Media Citation Instructions: oUTCT provided access to these dataoriginally appearing in Rieppel et al., 2007, with data collection funded by NSF EF-0334961 and data upload to MorphoSource funded by DBI-1902242. The files were downloaded from www.MorphoSource.org, Duke University.
Media preview mode
Interactive/Embeddable
Additional usage agreement
None

IDENTIFIERS AND EXTERNAL LINKS Field Definitions

MorphoSource ARK
MorphoSource DOI
Not assigned
External identifier
--
External media URL
--

IMAGE ACQUISITION AND PROCESSING IN DETAIL

STEP 1: IMAGE ACQUISITION

Physical object gm:XXXVIII/57 was imaged to create undeposited raw media.

IMAGING DETAILS Field Definitions

Modality
X-Ray Computed Tomography (CT/microCT)
Device
Varian Medical Systems (Bio-Imaging Research, Inc) ACTIS scanner with GE Titan X-ray source
Device facility
The University of Texas High-Resolution X-ray Computed Tomography Facility (University of Texas at Austin)
Creator
Matthew Colbert
Event date
--
Software
--
Description
--
Description attachment
None
Reference attachment
None
Exposure time
--
Flux normalization
No
Pixel spacing calibration
--
Shading correction
No
Frame averaging
none
Projections
1340
Voltage
420
Power
--
Amperage
1800
Surrounding material
empty container
X-ray tube type
--
Target type
--
Detector type
--
Detector pixels X
--
Detector pixels size X
--
Detector pixels Y
--
Detector pixels size Y
--
Detector configuration
--
Source object distance
--
Source detector distance
--
Target material
--
Rotation number
--
Phase contrast
--
Optical magnification
--
Acquisition type
--

STEP 2: IMAGE PROCESSING

Raw media (undeposited) was processed to create derived Media 000114985: Skull [CTImageSeries] [Etc] (this media).

Processing Details Field Definitions

Creator
Matthew Colbert
Event date
--
Software
--
Description
--
Description attachment
None

Media produced by this event on MorphoSource

Media 000114985: Skull [CTImageSeries] [Etc] (this media)