| dc.description.abstract | Micro computed tomography (micro-CT) and open source digital imaging and medical communication (DICOM) image processing software have great potential to study unique prehistoric artifacts. This is especially true for artifacts encased in concretions or embedded in other objects that cannot be physically excavated without destroying the artifact. Objects hidden from view can be made visible by obtaining micro-CT scans and then digitally excavating embedded objects in DICOM image processing software, such as 3D Slicer, through a process called segmentation. The 3D models produced by this process are then used to reconstruct the original form of the hidden objects using other 3D modeling software, in our case Blender. In cases where the physical removal of an embedded object threatens the destruction of the artifact, this non-invasive digital investigation may be the only way to study these unique artifacts. To demonstrate the utility of this methodology, a bone object, believed to be an osseous projectile point, found embedded in the rib of a 13,800 year old mastodon from the Manis site, Washington, is digitally excavated. | |
