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The potential of LiDAR and UAV-photogrammetric data analysis to interpret archaeological sites: A case study of Chun Castle in South-West England / Israa Kadhim in ISPRS International journal of geo-information, vol 10 n° 1 (January 2021)  

Public [article]  inISPRS International journal of geo-information > vol 10 n° 1 (January 2021) . - n° 41 Titre : The potential of LiDAR and UAV-photogrammetric data analysis to interpret archaeological sites: A case study of Chun Castle in South-West England Type de document : Article/Communication Auteurs : Israa Kadhim, Auteur ; Fanar M. Abed, Auteur Année de publication : 2021 Article en page(s) : n° 41 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] château [Termes IGN] classification ISODATA [Termes IGN] classification par séparateurs à vaste marge [Termes IGN] Cornouailles [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] image captée par drone [Termes IGN] photogrammétrie aérienne [Termes IGN] semis de points [Termes IGN] site archéologique [Termes IGN] structure-from-motion Résumé : (auteur) With the increasing demands to use remote sensing approaches, such as aerial photography, satellite imagery, and LiDAR in archaeological applications, there is still a limited number of studies assessing the differences between remote sensing methods in extracting new archaeological finds. Therefore, this work aims to critically compare two types of fine-scale remotely sensed data: LiDAR and an Unmanned Aerial Vehicle (UAV) derived Structure from Motion (SfM) photogrammetry. To achieve this, aerial imagery and airborne LiDAR datasets of Chun Castle were acquired, processed, analyzed, and interpreted. Chun Castle is one of the most remarkable ancient sites in Cornwall County (Southwest England) that had not been surveyed and explored by non-destructive techniques. The work outlines the approaches that were applied to the remotely sensed data to reveal potential remains: Visualization methods (e.g., hillshade and slope raster images), ISODATA clustering, and Support Vector Machine (SVM) algorithms. The results display various archaeological remains within the study site that have been successfully identified. Applying multiple methods and algorithms have successfully improved our understanding of spatial attributes within the landscape. The outcomes demonstrate how raster derivable from inexpensive approaches can be used to identify archaeological remains and hidden monuments, which have the possibility to revolutionize archaeological understanding. Numéro de notice : A2021-146 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/ijgi10010041 Date de publication en ligne : 19/01/2021 En ligne : https://doi.org/10.3390/ijgi10010041 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97053 [article]

Digital photogrammetry and ADAM technologies: Four software options and a case study / A. Springs in Geoinformatics, vol 15 n° 4 (01/06/2012)

Public [article]  inGeoinformatics > vol 15 n° 4 (01/06/2012) . - pp 18 - 21 Titre : Digital photogrammetry and ADAM technologies: Four software options and a case study Type de document : Article/Communication Auteurs : A. Springs, Auteur Année de publication : 2012 Article en page(s) : pp 18 - 21 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] analyse comparative [Termes IGN] Cornouailles [Termes IGN] logiciel de photogrammétrie [Termes IGN] restitution [Termes IGN] traitement d'image Résumé : (Auteur) This article examines digital photogrammetry. Particular reference is given to both cloud driven software like Photosynth, Image Composite Editor (ICE), Autodesk labs 123D Catch and terminal based software like ADAM Technologies' 3DM Analyst. The latter is discussed through the first UK University, all four of these software options are the put to the test through a case study of the eastern facade of St Gluvias Church, Penry, Cornwall, UK. Numéro de notice : A2012-227 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31673 [article]

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Evaluation of hyperspectral remote sensing as a means of environmental monitoring in the St Austell China clay (kaolin) region, Cornwall, UK / R.J. Ellis in Remote sensing of environment, vol 93 n° 1 (30/10/2004)  

Public [article]  inRemote sensing of environment > vol 93 n° 1 (30/10/2004) . - pp 118 - 130 Titre : Evaluation of hyperspectral remote sensing as a means of environmental monitoring in the St Austell China clay (kaolin) region, Cornwall, UK Type de document : Article/Communication Auteurs : R.J. Ellis, Auteur ; P.W. Scott, Auteur Année de publication : 2004 Article en page(s) : pp 118 - 130 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Argile [Termes IGN] carte géologique [Termes IGN] Cornouailles [Termes IGN] éclairement lumineux [Termes IGN] étalonnage radiométrique [Termes IGN] image HYMAP [Termes IGN] image hyperspectrale [Termes IGN] minerai [Termes IGN] surveillance géologique Résumé : (Auteur) The St. Austell granite of Cornwall, UK contains internationally important deposits of kaolin (china clay), the formation of which result from the alteration of a composite pluton of mineralogically and texturally different primary granite units. To assess the applicability of hyperspectral remote sensing in the St. Austell china clay region, one line of airborne HyMap® hyperspectral data was acquired. These data were processed to correct for atmospheric and illumination effects by calibration from radiance to reflectance data, so that mineral abundance maps could be produced. Minerals associated with the primary granite and its subsequent kaolinisation were identified by image processing and used as mapping endmembers. These minerals include kaolinite, kaolinite with smectite, montmorillonite, muscovite, lepidolite (a lithium mica) and topaz. Hyperspectral data analysis allowed for the identification of the different primary granite units. The spectrally observed compositional differences of the biotite and topaz granite units of the region allowed for fingerprinting of the source of mined waste material as originating from specific pits. The majority of waste tips in the region originate from the nearest china clay workings. However, waste material used in the construction of a mica dam and also as backfill in a disused pit is successfully identified to have been transported across a mapped granite boundary for storage. The effect of mining and mineral processing on the abundance and spatial distribution of minerals in the region is also evident. Wastetips are classified as containing the greatest abundance of mica. This distribution results from the separation of kaolinite during the mineral processing stages. Kaolinite in lower abundance, however, is also identified within these waste areas and is the result of a less than 100% recovery by mining and processing. Numéro de notice : A2004-425 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2004.07.004 En ligne : https://doi.org/10.1016/j.rse.2004.07.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26952 [article]

Nouvelle géographie universelle / E. Reclus (1883)

Public Titre : Nouvelle géographie universelle : la Terre et les hommes. Tome 4 l'Europe du Nord ouest Type de document : Ouvrage divers Auteurs : E. Reclus, Auteur Editeur : Paris : Hachette Année de publication : 1883 Collection : Nouvelle géographie universelle num. 4 Importance : 970 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géographie générale [Termes IGN] agriculture (secteur primaire) [Termes IGN] Angleterre [Termes IGN] armée [Termes IGN] Atlantique Nord [Termes IGN] Belgique [Termes IGN] Britanniques, îles [Termes IGN] climat tempéré [Termes IGN] Cornouailles [Termes IGN] Ecosse [Termes IGN] faune [Termes IGN] Grande-Bretagne [Termes IGN] île [Termes IGN] Irlande [Termes IGN] Islande [Termes IGN] Londres [Termes IGN] Luxembourg [Termes IGN] Manche (50) [Termes IGN] Manche (mer) [Termes IGN] navigation [Termes IGN] Pays de Galles [Termes IGN] Pays-Bas [Termes IGN] préhistoire [Termes IGN] Royaume-Uni [Termes IGN] secteur secondaire Numéro de notice : 55891 Affiliation des auteurs : non IGN Nature : Encyclopédie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=38656

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