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Remote Sensing
Volume 13
Issue 19
10.3390/rs13194015
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Article

A Comparison of Volumetric Reconstruction Methods of Archaeological Deposits Using Point-Cloud Data from Ahuahu, Aotearoa New Zealand

by
Joshua Emmitt
1,*,
Patricia Pillay
1,2,
Matthew Barrett
1,
Stacey Middleton
1,
Timothy Mackrell
1,
Bruce Floyd
1 and
Thegn N. Ladefoged
1,2
1
School of Social Sciences, University of Auckland, Auckland 1010, New Zealand
2
Te Pūnaha Matatini, Private Bag 92019, Auckland 1101, New Zealand
*
Author to whom correspondence should be addressed.
Remote Sens. 2021, 13(19), 4015; https://doi.org/10.3390/rs13194015
Submission received: 15 September 2021 / Revised: 30 September 2021 / Accepted: 1 October 2021 / Published: 7 October 2021
(This article belongs to the Special Issue Remote Sensing of Past Human Land Use)
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Abstract

Collection of 3D data in archaeology is a long-standing practice. Traditionally, the focus of these data has been visualization as opposed to analysis. Three-dimensional data are often recorded during archaeological excavations, with the provenience of deposits, features, and artefacts documented by a variety of methods. Simple analysis of 3D data includes calculating the volumes of bound entities, such as deposits and features, and determining the spatial relationships of artifacts within these. The construction of these volumes presents challenges that originate in computer-aided design (CAD) but have implications for how data are used in archaeological analysis. We evaluate 3D construction processes using data from Waitetoke, Ahuahu Great Mercury Island, Aotearoa, New Zealand. Point clouds created with data collected by total station, photogrammetry, and terrestrial LiDAR using simultaneous localization and mapping (SLAM) are compared, as well as different methods for generating surface area and volumes with triangulated meshes and convex hulls. The differences between methods are evaluated and assessed in relation to analyzing artifact densities within deposits. While each method of 3D data acquisition and modeling has advantages in terms of accuracy and precision, other factors such as data collection and processing times must be considered when deciding on the most suitable.
Keywords: 3D data; simultaneous localization and mapping; photogrammetry; total station recording; volumetric analysis; artefact density; New Zealand Archaeology; Ahuahu Great Mercury Island 3D data; simultaneous localization and mapping; photogrammetry; total station recording; volumetric analysis; artefact density; New Zealand Archaeology; Ahuahu Great Mercury Island
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MDPI and ACS Style

Emmitt, J.; Pillay, P.; Barrett, M.; Middleton, S.; Mackrell, T.; Floyd, B.; Ladefoged, T.N. A Comparison of Volumetric Reconstruction Methods of Archaeological Deposits Using Point-Cloud Data from Ahuahu, Aotearoa New Zealand. Remote Sens. 2021, 13, 4015. https://doi.org/10.3390/rs13194015

AMA Style

Emmitt J, Pillay P, Barrett M, Middleton S, Mackrell T, Floyd B, Ladefoged TN. A Comparison of Volumetric Reconstruction Methods of Archaeological Deposits Using Point-Cloud Data from Ahuahu, Aotearoa New Zealand. Remote Sensing. 2021; 13(19):4015. https://doi.org/10.3390/rs13194015

Chicago/Turabian Style

Emmitt, Joshua, Patricia Pillay, Matthew Barrett, Stacey Middleton, Timothy Mackrell, Bruce Floyd, and Thegn N. Ladefoged. 2021. "A Comparison of Volumetric Reconstruction Methods of Archaeological Deposits Using Point-Cloud Data from Ahuahu, Aotearoa New Zealand" Remote Sensing 13, no. 19: 4015. https://doi.org/10.3390/rs13194015

APA Style

Emmitt, J., Pillay, P., Barrett, M., Middleton, S., Mackrell, T., Floyd, B., & Ladefoged, T. N. (2021). A Comparison of Volumetric Reconstruction Methods of Archaeological Deposits Using Point-Cloud Data from Ahuahu, Aotearoa New Zealand. Remote Sensing, 13(19), 4015. https://doi.org/10.3390/rs13194015

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