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Seal Rotation Device – an Automated System for documenting Cylinder Seals

Reh, Benjamin ; Seitz, Christian ; Speck, Sonja

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Abstract

Cylinder seals are complex artifacts used in many early administrative systems especially in the Near East and Egypt. They are also linked to religious practices and concepts of identity. Several classical methods can be applied to document these objects, like photography, drawing and molding in plaster or plasticine. In addition to more recent methods like structured light scanning, we present an alternative method for 3D data acquisition. By combining existing technologies in a particular way, seals can be documented fast, cost efficiently and safe from a conservation viewpoint. This method developed at the Interdisciplinary Center for Scientific Computing (IWR) at Heidelberg University is a two-step procedure: first several series of images are obtained with a digital reflex camera in an automated way. The seal is mounted between two soft silicone buffers. An Arduino-based control unit rotates the seal using a stepper motor and triggers the camera. In the second step a 3D reconstruction of the seal is computed with the photogrammetric structure-from-motion approach. We will show first results acquired with this method both at the Petrie Museum of Egyptian Archaeology and the British Museum in London.

Item Type: Conference Item
Publisher: online / Open Access
Place of Publication: FH Oberösterreich in Wels, Österreich
Date Deposited: 25 May 2016 07:08
Date: 11 May 2016
Number of Pages: 27
Event Dates: 11.-13. Mai 2016
Event Location: Wels, Österreich
Event Title: 40th ÖAGM & ARW Joint Workshop on "Computer Vision and Robotics"
Faculties / Institutes: Service facilities > Interdisciplinary Center for Scientific Computing
Subjects: 000 Generalities, Science
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