Three-Dimensional Models of Experimentally-Produced Lithic Artifacts Created using Expedient and Refined Photogrammetry Protocols

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http://dx.doi.org/10.13020/D6T88N
https://hdl.handle.net/11299/180304

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Keywords

archaeology

3D scanning

photogrammetry

lithic technology

Collection period

2014-10-01
2016-05-01

Date completed

2016-05-15

Date updated

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Geographic coverage

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Title

Three-Dimensional Models of Experimentally-Produced Lithic Artifacts Created using Expedient and Refined Photogrammetry Protocols

Published Date

2016-05-16

Authors

Magnani, Matthew

Douglass, Matthew

Porter, Samantha T

Group

Author Contact

Porter, Samantha T
port0228@umn.edu

Type

Dataset
3D Imaging Data

Abstract

The data set consists of three-dimensional (3D) models of experimentally produced lithic artifacts created using both expedient and refined photogrammetric setups and processing protocols. Source images for all models were captured using a 12.1 megapixel Canon PowerShot SX260 HS compact digital camera. In our expedient protocol, objects were placed on a wire stand. The photographer moved around the object, and captured photos using Auto mode. In our refined protocol, objects were placed on a rotating turntable under controlled lighting conditions. The camera was placed on a tripod. Shutter speed, f-stop, and ISO were set manually. This refined protocol is described in Porter, S. T., Roussel, M., & Soressi, M. (2016). A Simple Photogrammetry Rig for the Reliable Creation of 3D Artifact Models in the Field Lithic Examples from the Early Upper Paleolithic Sequence of Les Cottés (France). Advances in Archaeological Practice, 4(1), 71-86. The associated paper discusses the relative fidelity of the models produced using these different workflows. Models may also be viewed online (in browser) at: https://sketchfab.com/unlarchaeology/collections/magnani-et-al-2016.

Description

The data are divided into four ZIP files based on whether they contain core or flake models, and whether the models were created using an expedient or refined photogrammetric setup and protocol. Each of these .ZIP files contains the relevant 3D models in OBJ format. There are three files associated with each model (OBJ, MTL, and JPG texture). The files are named based on object ID, and the setup used to create them (i.e. expedient or refined). All models were processed and scaled in Agisoft PhotoScan Professional Edition. Geomagic Design X was used to center and align models around the origin.

Referenced by

Magnani, M., Douglass, M., Porter, S. T. (2016). Closing the Seams: Resolving Frequently Encountered Issues in Photogrammetric Modelling. Antiquity.
https://doi.org/10.15184/aqy.2016.211

Related to

Porter, Samantha T.; Roussel, Morgan; Soressi, Marie. (2016). A Simple Photogrammetry Rig for the Reliable Creation of 3D Artifact Models in the Field: Lithic Examples from the Early Upper Paleolithic Sequence of Les Cottés (France). Advances in Archaeological Practice, 4(1). Retrieved from the University of Minnesota Digital Conservancy.
http://dx.doi.org/10.13020/D6201D

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Data Repository for U of M (DRUM)

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Previously Published Citation

Suggested citation

Magnani, Matthew; Douglass, Matthew; Porter, Samantha T. (2016). Three-Dimensional Models of Experimentally-Produced Lithic Artifacts Created using Expedient and Refined Photogrammetry Protocols. Retrieved from the Data Repository for the University of Minnesota (DRUM), http://dx.doi.org/10.13020/D6T88N.

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