Terrestrial Laser Scanning in the Age of Sensing

Lercari, Nicola

doi:10.1007/978-3-319-40658-9_1

Cited by 19 publications

(11 citation statements)

References 39 publications

(33 reference statements)

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“…annual instrument calibration, warranty extension, import/export documentation, etc.) and personnel costs associated with the lengthy TLS post-processing phase are factored in [19]. A potential solution for utilizing the proposed methods to monitor large sites with limited resources is to adopt alternative surveying technologies, such as Unmanned Aerial Vehicles (UAVs) and digital photogrammetry.…”

Section: Discussionmentioning

confidence: 99%

“…Although archaeologists have employed TLS extensively for stratigraphic and site-wide infield documentation, site monitoring, and damage assessment [3][4][5][6][7][8][9][10][11][12][13][14], conservators have employed this technique less frequently to monitor and preserve ancient earthen architecture [15][16][17][18]. Despite the high ownership and maintenance costs associated with TLS [19] and the availability of alternative intra-site digital documentation technology [20], laser scanning is still the most feasible option for intra-site documentation of large and complex sites such as Çatalhöyük.…”

Section: Introductionmentioning

confidence: 99%

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Monitoring earthen archaeological heritage using multi-temporal terrestrial laser scanning and surface change detection

Lercari

2019

Journal of Cultural Heritage

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Terrestrial laser scanning (TLS) is a three-dimensional survey technique proven successful for in-field stratigraphic and site-wide documentation or damage assessment of archaeological heritage. This study explores the potential utility of TLS and the Multiscale Model to Model Cloud Comparison (M3C2) surface change detection method for monitoring and preserving ancient earthen architecture, and for creating comprehensive site monitoring programs in compliance with UNESCO periodic reporting guidelines. The proposed methodology was tested using 3-D TLS datasets spanning a period of six years to assess the decay of mud brick structures at Çatalhöyük, Turkey in order to understand material loss in walls and buildings, identify potential underlying causes, and create a plan for physical interventions. This paper explains how a multitemporal laser scanning workflow using the M3C2 method can be leveraged successfully to quantify-with millimeter-level accuracy-the decay of large earthen sites and inform future conservation interventions. This approach allows for the identification of the wall features with the most immediate risk of deterioration based on the detection of patterns of change and calculation of its significance as a preventative measure. Results presented in this paper suggest that the proposed method can be used effectively to enhance site monitoring and perform preventative on-site interventions at large earthen sites earthen sites in the Middle East, Africa, Europe, and the Americas. 2 Keywords: Çatalhöyük; terrestrial laser scanning; earthen architecture conservation; surface change detection; Multiscale Model to Model Cloud Comparison (M3C2)

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Monitoring earthen archaeological heritage using multi-temporal terrestrial laser scanning and surface change detection

Lercari

2019

Journal of Cultural Heritage

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“…In the 2010's, additional research on digital archaeological methods at Çatalhöyük contributed to emphasize the epistemic value of visualization in archaeology by integrating 3D modeling, digital documentation, and virtual simulation in the daily activities of the excavators (Forte et al, 2012). More precisely, between 2010 and 2015, a multidisciplinary team of archaeologists and heritage specialists from the University of California Merced, Duke University, and Lund University digitally recorded the 3D topology of each stratigraphic layers of Building 89 in the framework of the 3D Digging at Çatalhöyük Project (3D Digging) led by Maurizio Forte (Lercari, 2016a). The goal of this initiative was to define novel methods for the interpretation of the archaeological record using interactive visual-analytical tools, such as the ones available in the 3D Geographic Information System (GIS) platform ESRI ArcScene, or the in the custom virtual reality software for archaeology Dig@IT developed at Duke University (Forte et al, 2015).…”

Section: Virtual Simulation As a Reflexive Methodsmentioning

confidence: 99%

3D visualization and reflexive archaeology: A virtual reconstruction of Çatalhöyük history houses

Lercari

2017

Digital Applications in Archaeology and Cultural Heritage

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More than twenty years of excavations at Çatalhöyük have generated data-driven interpretations on the repetition of Neolithic buildings over multiple levels of occupation. Current 3D technologies allow us to simulate Çatalhöyük's material culture and unique urban environment, but pose questions on the role of virtual simulation and 3D reconstruction in a reflexive and multivocal archaeological discourse. What is the significance of virtually rebuilding Çatalhöyük history houses? How can different viewpoints on history-in terms of class, race, ethnicity, and gender-be represented in a 3D reconstruction? This article aims to shed light on the role of 3D technologies for the dissemination of archaeological data in promoting reflexivity, multivocality, and heritage awareness in local communities and youth. This work discusses the preliminary phases of the Virtually Rebuilding Çatalhöyük Project with the goal of illustrating the theoretical underpinning and preliminary results of this initiative.

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“…While a model can of course be constructed manually, efficient measurement can be utilized for reality-based modeling [5]. Terrestrial laser scanners (TLSs) provide dense and accurate geometric information, though they are expensive [6], require the careful planning of scan locations, and can be time-consuming to use [7]. In recent years, an increasing number of low-cost sensor systems for 3D modeling using different operating systems have entered the market [8,9].…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Low-Cost Sensor Systems in Automatic Cloud-Based Indoor 3D Modeling

et al. 2020

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The automated 3D modeling of indoor spaces is a rapidly advancing field, in which recent developments have made the modeling process more accessible to consumers by lowering the cost of instruments and offering a highly automated service for 3D model creation. We compared the performance of three low-cost sensor systems; one RGB-D camera, one low-end terrestrial laser scanner (TLS), and one panoramic camera, using a cloud-based processing service to automatically create mesh models and point clouds, evaluating the accuracy of the results against a reference point cloud from a higher-end TLS. While adequately accurate results could be obtained with all three sensor systems, the TLS performed the best both in terms of reconstructing the overall room geometry and smaller details, with the panoramic camera clearly trailing the other systems and the RGB-D offering a middle ground in terms of both cost and quality. The results demonstrate the attractiveness of fully automatic cloud-based indoor 3D modeling for low-cost sensor systems, with the latter providing better model accuracy and completeness, and with all systems offering a rapid rate of data acquisition through an easy-to-use interface.

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Terrestrial Laser Scanning in the Age of Sensing

Cited by 19 publications

References 39 publications

Monitoring earthen archaeological heritage using multi-temporal terrestrial laser scanning and surface change detection

Monitoring earthen archaeological heritage using multi-temporal terrestrial laser scanning and surface change detection

3D visualization and reflexive archaeology: A virtual reconstruction of Çatalhöyük history houses

A Comparison of Low-Cost Sensor Systems in Automatic Cloud-Based Indoor 3D Modeling

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