Combining photogrammetry and photographic enhancement techniques for the recording of megalithic art in north-west Iberia

Noya, Natalia Cortón; García, A. López; Ramírez, Fernando Carrera

doi:10.1016/j.daach.2015.02.004

Cited by 18 publications

(8 citation statements)

References 10 publications

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“…The latter proved to be of great utility in helping us to identify the engraved motifs. Image decorrelation (which works on colour spaces: Cassen et al 2014;Noya et al 2015) was used for detecting chromatic anomalies (old graffiti, exposure to heat) rather than for documenting engravings, since our tests in this regard have been inconclusive.…”

Section: Methods For Recording and Representing The Datamentioning

confidence: 99%

The ‘Historiated’ Neolithic Stele of Saint-Samson-sur-Rance (Côtes-d'Armor, France)

Cassen¹,

Grimaud²,

Lescop³

et al. 2017

CAJ

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The stone of Saint-Samson is a Neolithic stele of 70 tons and 10 m of probable length. Its intriguing leaning position and its very regular morphology have aroused curiosity since medieval times. Three of its four faces—oriented towards the cardinal points—display engravings that were discovered in the 1970s. Now, a new recording protocol has combined 2D techniques for emphasizing the contrast of the engravings (oblique rotating lights) and 3D methods for restoring the volumes of the support (photogrammetry, structured-light scanner). The results obtained have made it possible to implement the first structural analysis of the stone. The north and west faces show an opposition between domestic (cattle, goats) and wild animals (suidae, cervidae, birds, cetaceans), depicted confronted and with their horns or tusks clearly visible. The south face was reserved for the human figure and for iconic artefacts (polished axe, throwing stick, ring disk, steering oar). The four faces have in common the presence of boats. The relationship linking the monument to waterways and the sea is approached by analysing both local legends and the phenomenon of the tidal wave.

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Section: Methods For Recording and Representing The Datamentioning

confidence: 99%

The ‘Historiated’ Neolithic Stele of Saint-Samson-sur-Rance (Côtes-d'Armor, France)

Cassen¹,

Grimaud²,

Lescop³

et al. 2017

CAJ

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show abstract

“…Nowadays, terrestrial laser scanning (TLS) and aerial or terrestrial photogrammetry are the two primary techniques used in a digital documentation context [13], or a combination of both [11]. Many examples of heritage sites documentation can be retrieved by which those two techniques are used to collect geometrical information related to the objects [14,15]. For the majority of the application, a four-step process is used.…”

Section: Heritage Documentationmentioning

confidence: 99%

A Built Heritage Information System Based on Point Cloud Data: HIS-PC

Poux

Billen

Kasprzyk

et al. 2020

IJGI

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The digital management of an archaeological site requires to store, organise, access and represent all the information that is collected on the field. Heritage building information modelling, archaeological or heritage information systems now tend to propose a common framework where all the materials are managed from a central database and visualised through a 3D representation. In this research, we offer the development of a built heritage information system prototype based on a high-resolution 3D point cloud data set. The particularity of the approach is to consider a user-centred development methodology while avoiding meshing/down-sampling operations. The proposed system is initiated by a close collaboration between multi-modal users (managers, visitors, curators) and a development team (designers, developers, architects). The developed heritage information system permits the management of spatial and temporal information, including a wide range of semantics using relational along with NoSQL databases. The semantics used to describe the artifacts are subject to conceptual modelling. Finally, the system proposes a bi-directional communication with a 3D interface able to stream massive point clouds, which is a big step forward to provide a comprehensive site representation for stakeholders while minimising modelling costs.

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“…One is placed at the light source (or the lights) and the other just in front of the acquisition device. Figure 3 shows the work plan that was been tested by (Noya et al, 2015). Figure 3.…”

Section: Related Workmentioning

confidence: 99%

Methodology for 3d Acquisition of Highly Reflective Goldsmithing Artefacts

Hallot¹,

Gil

2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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The goldsmithing pieces conserved in museums are fragile objects whose accessibility for both research and mediation purposes lacks dematerialized systems for the safe handling of objects. The research presented is part of the e-thesaurus project whose main objective is to improve the accessibility of masterpieces of goldsmithing -produced during the medieval period in the northern regions of France and today's Belgium -both for research and mediation purposes. The methodology for 3D acquisition of objects with high levels of details and reflective properties must be further developed and affirmed in order provide controlled datasets that are suitable for researchers of the field and accurate for mediation application. The proposed project is the result of a collaboration between the IRHiS UMR CNRS of the University of Lille and the University of Liège. The proposed methodology leads to the 3D reconstruction of masterpieces of goldsmithing. The models developed serve as a basis for a mediation through holographic representation. They recently participated in an exhibition in the Treasure of the Cathedral of Liège museum.* Corresponding author the reliquary cross of Clairmarais Abbey and a pyx (box to keep the consecrated Host), see Figure 1. These three objects were produced between the end of 12 th and the first decades of 13th century. They were chosen because of their geometric complexity and the large number of different materials they combine.

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Combining photogrammetry and photographic enhancement techniques for the recording of megalithic art in north-west Iberia

Cited by 18 publications

References 10 publications

The ‘Historiated’ Neolithic Stele of Saint-Samson-sur-Rance (Côtes-d'Armor, France)

The ‘Historiated’ Neolithic Stele of Saint-Samson-sur-Rance (Côtes-d'Armor, France)

A Built Heritage Information System Based on Point Cloud Data: HIS-PC

Methodology for 3d Acquisition of Highly Reflective Goldsmithing Artefacts

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