Automated morphological classification in Asurini ceramics from Xingu
DOI:
https://doi.org/10.24885/sab.v36i1.1028Keywords:
Automated classification, Morphological classification, Geometric morphometry, Tupi Archaeology, Asurini potteryAbstract
This article presents a morphological analysis experiment, based on the precepts of Geometric Morphometry in Asurini ceramic vessels, from Xingu. We aim to foster discussions about the development of a low-cost and simple protocol to automatically capture ceramic profiles with high reliability. Therefore, with the help of geometric morphometric tools, we seek to capture mathematical information from highly variable ceramic specimen profiles and compare them with each other. For this task, we adapted the execution protocol to non-biological contexts, in which we carried out an arbitrary scattering of reference points, equally applied to all specimens. Thus we collected information based on image pixels. The results confirmed that the analysis of digital representations of artifacts using geometric morphometry allows classifications similar to those used by the social groups that produced them. This analysis can also provide clues about possible changes in function and maintenance in the morphology of ceramic bowls. This reinforces how exploratory analyses using digital tools can help us understand changes and permanence in the artifact sets. The explanatory analysis provided by this experiment is a relevant step in constructing an algorithm for automated morphological analysis, aligned with a continued program of long-term historical restitution of the people associated with the Tupi linguistic stock.
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