A high-precision photogrammetric recording system for small artifacts

Title: A high-precision photogrammetric recording system for small artifacts
Creator(s): Sapirstein, Philip
Date: 2018
Is Part Of: Journal of Cultural Heritage
Volume: 31
Pages: 33-45
Language: eng
ISSN: 1296-2074
DOI: https://doi.org/10.1016/j.culher.2017.10.011
URI: https://www.sciencedirect.com/science/article/pii/S1296207417302261
Zotero BiDiAr: https://www.zotero.org/groups/5293298/bidiar/items/SCSDIQI3/item-list
Abstract: Archaeologists, preservationists, and many other researchers have increasingly turned to photogrammetry as an alternative to optical 3D-scanning hardware. The technology is sufficiently new that researchers have only begun to establish the protocols and standards. This article presents a simple yet rigorously controlled method for 3D modeling small artifacts ca. 5–10cm across. The specimen is rotated on a turntable to facilitate photography, and artificial lighting creates an even illumination throughout the resulting models. A masking technique allows a full 360° view of the object to be restored simultaneously, eliminating the need for aligning and merging partial scans or other post-processing. Repeatability tests of the resulting models indicate high precisions and accuracies that exceed those reported previously for photogrammetric modeling in the literature. The method can match the accuracy typically attained by commercial optical scanning systems.
cited by: 3D-STONE: a comprehensive workflow for structured light scanning and digital twin modeling of stone architectural elements in archaeology