Media 000407413: Skull
Restricted Download
Type Volumetric Image Series
Modality X-Ray Computed Tomography (CT/microCT)
Media represents biological specimen
mnhn:za:2156 Powichthys sp.
Managed by
Jessie Maisano

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Media produced from the same original imaging that created Media 000407413 (this media). Includes all media associated with this media through an imaging and processing workflow.

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GENERAL DETAILS Field Definitions

Media ID
000407413
Media type
Volumetric Image Series
Object element or part
skull
Object represented
mnhn:za:2156
Object taxonomy
Powichthys sp.
Object organization
The reptiles, amphibians and fishes collection (ZA) in the Comparative Anatomy Collection of the Muséum national d'Histoire naturelle (MNHN - Paris)
Side
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Orientation
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Short description
HRXCT scan - partial skull
Full description
University of Texas High-Resolution X-ray CT Facility Archive 1112 Ahlberg: Powichthys: Scans of the front of the fossil skull of Powichthys (SVD 2156), Spitsbergen, Early Devonian, Lochkovian/Pragian, for Dr. Per Ahlberg of The Natural History Museum, London. Specimen scanned by Matthew Colbert 28 October 2004. 16bitrot: 1024x1024 16-bit TIFF images. II, 180 kV, 0.133 mA, no filter, air wedge, no offset, slice thickness 1 line (= 0.0531 mm), S.O.D. 155 mm, 2000 views, 2 samples per view, inter-slice spacing 2 lines (= 0.0531 mm), field of reconstruction 50 mm (maximum field of view 50.79406 mm), reconstruction offset 5000, reconstruction scale 1200. Acquired with 27 slices per rotation. Spike- and ring-removal processing done by Susan Garlock based on correction of raw sinogram data using IDL routines “RK_SinoDeSpike” and “RK_SinoRingProcSimul” with default parameters. Reconstructed with beam-hardening coefficients: 0.0, 0.7, 0.2. Rotation correction processing done by Susan Garlock using IDL routine “DoRotationCorrection”. Image orientation adjuisted to vertical using Photoshop. Images flipped because specimen was scanned bottom to top. Total slices = 405.
Creator
--
Date created
October 28, 2004
Date uploaded
December 13, 2021

FILE OBJECT DETAILS Field Definitions

File name
16bit.zip
File format(s)
ZIP archive, TIFF
File size
529 MB
Image width
1024
Image height
1024
Color space
BlackIsZero
Color depth
16
Compression
Uncompressed
Series type
Reconstructed image stack
X pixel spacing
0.048800
Y pixel spacing
0.048800
Z pixel spacing
0.053100
Pixel spacing units
Mm
Slice thickness
--
Number of images in set
405

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 CT scanner with FeinFocus 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
Jessie Maisano
Data uploaded by
Leticia Hsieh
Publication status
Restricted Download
Download reviewer
Jessie Maisano
IP holder
Muséum National d'Histoire Naturelle
Copyright statement
 In Copyright - Non-Commercial Use Permitted
Creative Commons license
 Creative Commons BY-NC Attribution-NonCommercial 4.0 International
Morphosource use agreement type
Standard
Permits commercial use
Commercial Use Not Permitted
Permits 3D use
3D Printing Prohibited
Required archival of published derivatives
On MorphoSource
Funding attribution
DBI-1902242
Publisher
oUTCT PEN
Cite as
oUTCT provided access to these data, with data collection funded by Per Ahlberg 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
 ark:/87602/m4/407413
MorphoSource DOI
Not assigned
External identifier
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External media URL
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IMAGE ACQUISITION AND PROCESSING IN DETAIL

STEP 1: IMAGE ACQUISITION

Physical object mnhn:za:2156 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 CT scanner with FeinFocus X-ray source
Device facility
The University of Texas High-Resolution X-ray Computed Tomography Facility (University of Texas at Austin)
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Description
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Description attachment
None
Reference attachment
None
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Flux normalization
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Pixel spacing calibration
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Shading correction
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Frame averaging
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STEP 2: IMAGE PROCESSING

Raw media (undeposited) was processed to create derived Media 000407413: Skull [CTImageSeries] [CT] (this media).

Processing Details Field Definitions

Creator
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Event date
--
Software
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Description
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Description attachment
None

Media produced by this event on MorphoSource

Media 000407413: Skull [CTImageSeries] [CT] (this media)