CT-Scanning ProcessOne aspect of our work this summer is creating 3D images of some of our specimens. This can be accomplished non-destructively with the CT (Computed Tomography) scanner down the hallway in the Micro-Imaging Facility.
|GE Phoenix CT-Scanner (photo credit: http://research.amnh.org/mif/node/12)|
|AMNH-FI-87587 Uvigerina strata|
We use software created by the scanner's manufacturer to reconstruct a volume from a series of 2D images. Then, we edit this volume in VG Studio. Because the mounting materials are denser than air, there is usually unwanted noise in the scan. Sometimes removing all of this noise to isolate the fossil can be a very time-consuming process.
After isolating the specimen, we create videos and interactive files showing internal and external 3D structure. We can even send our processed CT scan data to one of the museum's 3D printers!