Media 000398291: Pterygoid
Open Download
Type
Mesh
Modality
X-Ray Computed Tomography (CT/microCT)
Media represents biological specimen
Managed by
Media 000398291: Pterygoid
Open Download
Type
Mesh
Modality
X-Ray Computed Tomography (CT/microCT)
Media represents biological specimen
Managed by
Login or create an account to download files
GENERAL DETAILS Field Definitions
Media ID
000398291
Media type
Mesh
Object element or part
pterygoid
Object represented
Object taxonomy
Mambawakale ruhuhu
Object organization
Side
Left
Orientation
--
Short description
Left Pterygoid of Mambawakale ruhuhu
Full description
3D mesh model of the Left Pterygoid of Mambawakale ruhuhu - NHMUK R36620 - unit: meter
Creator
Vincent Fernandez
Date created
July 21, 2021
Date uploaded
November 25, 2021
FILE OBJECT DETAILS Field Definitions
File name
Mambawakale_ruhuhu_-_NHMUK_R36620_-_06_pterygoid_L.stl
File format(s)
STL
File size
10.4 MB
Points
108928
Polygons
217864
Map type
--
UV coordinates
False
Vertex color
False
Bounding box dimensions
0.096, 0.102, 0.354
Centroid coordinates
0.418, -0.032, 0.141
Units of point coordinates
--
IMAGE ACQUISITION AND PROCESSING AT A GLANCE Field Definitions
Number of parent media
2
Number of processing events
3
(8 steps)
Derived directly from
Modality
X-Ray Computed Tomography (CT/microCT)
Device
Nikon Metrology HMX ST 225, NHMUK Imaging and Analysis Centre (The Natural History Museum, London)
OWNERSHIP AND PERMISSIONS Field Definitions
Data managed by
Data uploaded by
Publication status
Open Download
Download reviewer
IP holder
The Trustees of the Natural History Museum, London
Copyright statement
Creative Commons license
Morphosource use agreement type
Standard
Permits commercial use
Commercial Use Not Permitted
Permits 3D use
3D Printing Limited
Required archival of published derivatives
On MorphoSource
Funding attribution
--
Publisher
--
Cite as
© The Trustees of the Natural History Museum, London
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
NHMUK:PAL:PV R 36620
was imaged to create
undeposited raw media.
IMAGING DETAILS Field Definitions
Modality
X-Ray Computed Tomography (CT/microCT)
Device
Nikon Metrology HMX ST 225
Device facility
NHMUK Imaging and Analysis Centre (The Natural History Museum, London)
Creator
Vincent Fernandez
Event date
May 30, 2018
Software
Nikon Metrology Inspect X 3.1
Description
Tomogram of the skull resulting from the merging of 3 dataset (as the specimen was too large)
Description attachment
None
Reference attachment
None
Exposure time
1 second
Flux normalization
No
Pixel spacing calibration
--
Shading correction
Yes
Frame averaging
4
Projections
3142
Voltage
225 kV
Power
135 W
Amperage
600 μA
Surrounding material
foam
X-ray tube type
Nikon 225 UltraFocus
Target type
Reflection
Detector type
Scintillator (Phosphor used)
Detector pixels X
2000
Detector pixels size X
0.2
Detector pixels Y
2000
Detector pixels size Y
0.2
Detector configuration
Area (single or tiled detector)
Source object distance
744.05 mm
Source detector distance
1173.8 mm
Target material
Tungsten
Rotation number
--
Phase contrast
No
Optical magnification
No
Acquisition type
Sequenced
STEP 2: IMAGE PROCESSING
Raw media (undeposited)
was processed
with 7 activities
to create
derived
Media 000392226: Skull Of Mambawakale Ruhuhu Nhmuk R36620 [CTImageSeries] [CT].
Processing Details Field Definitions
Creator
Vincent Fernandez
Event date
August 08, 2021
Software
Nikon Metrology Inspect X 6
Description
The dataset is a 16-bit stack of tomograms resulting from the merging of 3 individual dataset. Dataset 1 and 2 were acquired by moving the sample holder motor on the vertical axis; dataset 3 was acquired after turning the specimen upside down
Description attachment
None
Processing Activity 1: Reconstruction
Software
Nikon metrology inspect X
Description
Acquisition #1 and #2 reconstructed as 32-bit vol files
Processing Activity 2: Align Parts
Software
GNU Octave 5
Description
Alignment of dataset #1 and #2 based on motor position and refined based on image analysis
Processing Activity 3: Merge
Software
GNU Octave 5
Description
Merging of dataset #1 and #2 with a weighted averaging for the overlapping part
Processing Activity 4: Bit Depth Change
Software
GNU Octave 5
Description
Change of bit depth of dataset #1 and #2 32-bit to 16-bit based on manually selected min and max values
Processing Activity 5: Reconstruction
Software
Nikon metrology inspect X
Description
reconstruction of dataset #3 as a 16-bit volume, using the same min and max define earlier for dataset #1 and #2
Processing Activity 6: Align Parts
Software
VGstudiomax (Volume Graphics)
Description
Manual alignment of dataset #1+2 and #3
Processing Activity 7: Merge
Software
VGstudiomax (Volume Graphics)
Description
export of the aligned volume as a single 16-bit stack of tiff
Media produced by this event on MorphoSource
STEP 3: IMAGE PROCESSING
Derived
Media 000392226: Skull Of Mambawakale Ruhuhu Nhmuk R36620 [CTImageSeries] [CT]
was processed
to create
derived
Media 000392233: Complete Skull [Mesh] [CT].
Processing Details Field Definitions
Creator
Vincent Fernandez
Event date
July 21, 2021
Software
Blender
Description
Mesh models of the skull bones of Mambawakale ruhuhu - NHMUK R36620
Description attachment
None
Media produced by this event on MorphoSource
STEP 4: IMAGE PROCESSING
Derived
Media 000392233: Complete Skull [Mesh] [CT]
was processed
with 1 activity
to create
derived
Media 000398291: Pterygoid [Mesh] [CT] (this media).
Processing Details Field Definitions
Creator
Vincent Fernandez
Event date
July 21, 2021
Software
VGstudiomax
Description
Left Pterygoid of Mambawakale ruhuhu
Description attachment
None
Processing Activity 1: Reconstructed Tomography to Mesh
Software
VGstudiomax
Description
Same process describe as parent media, but for a single bone
Media produced by this event on MorphoSource
Media 000398291: Pterygoid [Mesh] [CT] (this media)