Digital Copies for Anthropological Research: Virtual Models and Databases

Abstract

In the last two decades, a large number of anthropological papers have been focused on digital copies of pa-laeoanthropological materials rather than original skeletal remains. According to some foreign scholars, “virtual anthropology” has taken a shape of a separate field of anthropological science. One of the main advantages of “virtual anthropology” is the possibility to develop databases, datasets, digital collections and catalogues accessi-ble to the scientific community worldwide. Digitization of research objects facilitates organizational side of studies, provides access to wider data, expands the toolkit of available research methods, and also provides safety to the original materials. At the same time, the variability of types of virtual models along with the absence of generally accepted protocols complicate verification of morphometric and structures data. The main goal of this review pa-per is to structure the available information on virtual palaeoanthropological databases and the materials they contain. 3D-scanning technologies can be generally divided into surface scanning (including photogrammetry) and tomographic scanning. The first group of technologies provide 3D models of the shape of an object, accurate enough to be used in morphometric studies if resolution of the equipment is adequate for the size of the object and aims of the study. The second group is designed to scan the whole form of an object, which allows the ex-amination of its internal structures or tissues, small surface structures or dental material. Both methods have their strengths and weaknesses: while surface scans are cheaper and easier to obtain, CT scans provide information unavailable from the former technique. Assessment of qualitative and quantitative characteristics of digital copies depends on objectives of the study. The article provides an overview of 17 databases of virtual paleoanthro-pological models, which comprise either surface or CT scans, or both. These materials can be used in various fields of study, including human evolution, primatology, palaeoanthropology, palaeopathology, forensic science, human anatomy, as well as in teaching of these subjects. For each collection, approximate number of objects and terms of use have been specified.

Keywords

• virtual anthropology
• surface scanning
• computed tomography
• microtomography
• photogrammetry
• digital databases