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检索条件"丛书名=Lecture Notes in Geoinformation and Cartography"

共 1042 条记录，以下是21-30 订阅

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Artificial Intelligence for the Automated Creation of Multi-scale Digital Twins of the Built World-AI4TWINNING

Artificial Intelligence for the Automated Creation of Multi-...

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18th International 3D GeoInfo Conference

作者： Borrmann, Andre Biswanath, Manoj Braun, Alex Chen, Zhaiyu Cremers, Daniel Heeramaglore, Medhini Hoegner, Ludwig Mehranfar, Mansour Kolbe, Thomas H. Petzold, Frank Rueda, Alejandro Solonets, Sergei Zhu, Xiao Xiang Tech Univ Munich Munich Germany

ISBN: (纸本)9783031437014;9783031436994;9783031436987

The AI4TWINNING project aims at the automated generation of a system of inter-related digital twins of the built environment spanning multiple resolution scales providing rich semantics and coherent geometry. To this end, an interdisciplinary group of researchers develops a multi-scale, multi-sensor, multi-method approach combining terrestrial, airborne, and spaceborne acquisition, different sensor types (visible, thermal, LiDAR, Radar) and different processing methods integrating top-down and bottom-up AI approaches. The key concept of the project lies in intelligently fusing the data from different sources by AI-based methods, thus closing information gaps and increasing completeness, accuracy and reliance of the resulting digital twins. To facilitate the process and improve the results, the project makes extensive use of informed machine learning by exploiting explicit knowledge on the design and construction of built facilities. The final goal of the project is not to create a single monolithic digital twin, but instead a system of interlinked twins across different scales, providing the opportunity to seamlessly blend city, district and building models while keeping them up-to-date and consistent. As testbed and demonstration scenario serves a urban zone around the city campus of TUM, for which large data sets from various sensors are available.

关键词： Digital twin Artificial intelligence Point clouds Building Information Modelling (BIM)

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Integration of Water Quality Index (WQI) and Geographic Information Systems (GIS) to Assess Springs Water Quality in the El Hajeb-Meknes Area, Morocco 4th

Integration of Water Quality Index (WQI) and Geographic Info...

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4th International Conference on GIRE3D Participatory and Integrated Management of Water Resources in Arid Zones

作者： Alitane, Abdennabi Essahlaoui, Ali Van Griensven, Ann Eisenreich, Steven Essahlaoui, Narjisse Elaaraj, Abdallah Kassou, Amina Essaied, Abdelouahed El Yousfi, Yassine Moulay Ismail Univ Geoengn & Environm Lab Res Grp Water Sci & Environm Engn Geol DeptFac Sci Marjane 2BP 298 Meknes Morocco Vrije Univ Brussels VUB Water & Climate Dept B-1050 Brussels Belgium IHE Delft Inst Water Educ Water Resources & Ecosyst Dept Delft Netherlands Polydisciplinary Fac Taza Geol Dept Nat Resources & Environm Lab Route Oujda 1223 Taza 35000 Morocco Sidi Mohamed Ben Abdellah Univ FEZ Fac Sci & Technol Engn Sci & Tech Ctr Environm Dept Fes 30000 Morocco Moulay Ismail Univ Georesource Geoenvironm & Oasis Geol Heritage Res Engn Sci & Tech Lab Geosci DeptFac Sci & Tech Meknes Morocco Moulay Ismail Univ Meknes Fac Sci Dept Geol Geoexplorat & Geotech Res Team Meknes 11201 Morocco Abdelmalek Essaadi Univ Lab Appl Sci LSA ENSAH Al Hoceima GEE Tetouan Morocco

ISBN: (纸本)9783031630408;9783031630385;9783031630378

The present research is focused on the evaluation of springs water suitability for human consumption based on water quality parameters. Because of the rising level of human activity, pollutants, especially trace elements, are entering the aquatic system, posing harm to humans. The objectives of this study is: (i) to analyse the water quality variables, (ii) to compare their impact on water quality status of natural springs, and (iii) to display the Water Quality Index (WQI) results using Geographical Information System (GIS). The concentrations of water variables for investigated springs were analyzed adopting the Rodier standard method in the field using Multiparameter and in lab using a visible spectrophotometer and ICP-MS (ICPE-9000).The measured physico-chemical parameters were analyzed using a principal component analysis (PCA). A total of 24 water samples were taken from 12 springs to evaluate their suitability for human consumption. From the analysis of principal components (PCA), 73.87%. The variation was explained by the first three main factors. The variables pH, TDS, HCO3-, Na+, Ca2+, Mg2+ and Zn showed a strong correlation with F1. Following this, NO3-, Pb, Mn and Cu showed a strong correlation with F2, while SO4-, CO, B, Ni and Cr showed a notable correlation with F3. The water quality index (WQI) was ranged from 49.66 to 95.10, averaging 76.52. About 17% of water samples were classified as excellent quality (WQI < 50), while the remaining 83% fell under the classification of good quality (50 < WQI < 100). This suggests that all the natural spring waters examined are suitable for human consumption.

关键词： WQI SIG Physico-chemical parameters Springs water Hajeb-Meknes area

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Reconstructing Facade Details Using MLS Point Clouds and Bag-of-Words Approach

Reconstructing Facade Details Using MLS Point Clouds and Bag...

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18th International 3D GeoInfo Conference

作者： Froech, Thomas Wysocki, Olaf Hoegner, Ludwig Stilla, Uwe TUM TUM Sch Engn & Design Photogrammetry & Remote Sensing Munich Germany Univ Appl Sci HM Dept Geoinformat Munich Germany

ISBN: (纸本)9783031437014;9783031436994;9783031436987

In the reconstruction of facade elements, the identification of specific object types remains challenging and is often circumvented by rectangularity assumptions or the use of bounding boxes. We propose a new approach for the reconstruction of 3D facade details. We combine mobile laser scanning (MLS) point clouds and a pre-defined 3D model library using a Bag of words (BoW) concept, which we augment by incorporating semi-global features. We conduct experiments on the models superimposed with random noise and on the TUM-FACADE dataset (Wysocki et al., 2023). Our method demonstrates promising results, improving the conventional BoW approach. It holds the potential to be utilized for more realistic facade reconstruction without rectangularity assumptions, which can be used in applications such as testing automated driving functions or estimating facade solar potential.

关键词： Point clouds Facade reconstruction Bag-of-Words Approach mobile laser scanning

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Classifying Point Clouds at the Facade-Level Using Geometric Features and Deep Learning Networks

Classifying Point Clouds at the Facade-Level Using Geometric...

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18th International 3D GeoInfo Conference

作者： Tan, Yue Wysocki, Olaf Hoegner, Ludwig Stilla, Uwe TUM TUM Sch Engn & Design Photogrammetry & Remote Sensing Munich Germany Univ Appl Sci HM Dept Geoinformat Munich Germany

ISBN: (纸本)9783031437014;9783031436994;9783031436987

3D building models with facade details are playing an important role in many applications now. Classifying point clouds at facade-level is key to create such digital replicas of the real world. However, few studies have focused on such detailed classification with deep neural networks. We propose a method fusing geometric features with deep learning networks for point cloud classification at facade-level. Our experiments conclude that such early-fused features improve deep learning methods' performance. This method can be applied for compensating deep learning networks' ability in capturing local geometric information and promoting the advancement of semantic segmentation.

关键词： Geometric features Point cloud classification Deep learning

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Merging BIM, Land Use and 2D Cadastral Maps into a Digital Twin Fit-For-Purpose Geospatial Infrastructure

Merging BIM, Land Use and 2D Cadastral Maps into a Digital T...

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18th International 3D GeoInfo Conference

作者： Andritsou, Dimitra Soile, Sofia Potsiou, Chryssy Natl Tech Univ Athens Sch Rural & Surveying Engn 9 Iroon Polytechneiou St Zografos 15780 Greece

ISBN: (纸本)9783031437014;9783031436994;9783031436987

Digital Twin (DT) technology is the tool for monitoring, management and intervening in a timely manner to prevent disasters in urban areas, transforming them into smart cities. By enabling real-time data flow through utilizing a vast network of interconnected sensors and smart devices the functioning of buildings, facilities and utility networks can be monitored, managed and optimized to achieve a more stabilized, fair and sustainable urban environment. Good land management and optimal exploitation can also be achieved. The paper presents an innovative crowdsourced methodology for a fast, low cost and reliable structuring of the necessary geospatial infrastructure for a digital twin of an urban neighborhood by merging and visualizing individual BIMs with available open data, such as open orthophotos and cadastral maps, planning and building regulations, as well as existing land uses, smart devices and metric data derived from the Google Earth Pro and Street View platforms. The above-mentioned data if transferred into an open-source platform, such as Tandem, are ideal for tracking, managing and improving the residents' living, from an economic, hygienic, safety and ecological point of view. Data derived from smart devices is a prerequisite for predicting and preventing various problems and setbacks.

关键词： BIM Digital twin Smart devices Crowdsourcing Fit-for-purpose geospatial infrastructure Open data

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OGC Data Exchange Toolkit: Interoperable and Reusable 3D Data at the End of the OGC Rainbow

OGC Data Exchange Toolkit: Interoperable and Reusable 3D Dat...

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18th International 3D GeoInfo Conference

作者： Noardo, Francesca Atkinson, Rob Simonis, Ingo Villar, Alejandro Zaborowski, Piotr Open Geospatial Consortium Europe Technologielaan 3 B-3001 Heverlee Belgium

ISBN: (纸本)9783031437014;9783031436994;9783031436987

Standard data models are powerful to enable data interoperability. However, due to their ambition to comprehensively represent a domain, they tend to be over-specified. On the other hand, they allow too much flexibility in implementation and modelling details, to adapt to several use cases needs. The OGC Data Exchange Toolkit intends to overcome the two issues by means of a methodology to define profiles through linked data technologies, operated via the OGC Rainbow. Moreover, attributes are defined to specify the desired object representation requirements, solving the under-specification issue. A template is provided, intended to support manual input of data requirements, generating in turn a human-readable description and amachine-readable input for the profiling tool itself. The profile allows automatic datasets validation against the defined requirements. The prototype is developed and tested on a sample CityJSON dataset.

关键词： Standard data models Data model profile Data requirements Data validation Ontologies OGC Rainbow

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Espacio Clandestino: A Nationwide Platform to Support Clandestine Graves Search in Mexico 3rd

Espacio Clandestino: A Nationwide Platform to Support Clande...

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3rd International Conference on Geospatial Information Sciences (iGISc)

作者： Silvan-Cardenas, Jose Luis Alegre-Mondragon, Ana Josselinne Ctr Invest Ciencias Infromac Geoespacial AC Contoy 137 Mexico City DF Mexico

ISBN: (纸本)9783031614422;9783031614408;9783031614392

Espacio Clandestino (Clandestine Space) is an online platform developed in Google Earth Engine (GEE) Apps by researchers from CentroGeo with inputs from several institutions. This article describes models of the layers used in the app and how they are used for defining searching areas. It is the second version of the original platform reported in Silvan-Cardenas et al. (2021), which includes nationwide coverage of layers and a number of graves locations discovered through searching campaigns by the National Search Commission for Missing Persons in Mexico, among other new features. Examples of its use in real searches are provided and future updates identified.

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Visualisation of 3D Uncertainties for Subsurface Infrastructure Using Augmented Reality

Visualisation of 3D Uncertainties for Subsurface Infrastruct...

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18th International 3D GeoInfo Conference

作者： Vinther, Simon Quaade Kunnerup, Frida Dalbjerg Bodum, Lars Hansen, Lasse Hedegaard Wyke, Simon Aalborg Univ DK-9000 Aalborg Denmark

ISBN: (纸本)9783031437014;9783031436994;9783031436987

The damage of subsurface infrastructure under the auspices of excavation is a long-standing global problem, which causes great financial losses as a consequence of project delays, disruptions of public supply, and the increased life-cycle costs of utility lines. The primary causes of excavation damage are attributed to the lack of reliable utility information and inadequate approaches to communicating the positional uncertainties to the end users. Accordingly, this study presents a deterministic uncertainty-aware approach for visualising subsurface infrastructure in 3D using augmented reality (AR). The prototype was presented and evaluated in a focus group interview with five respondents with experience from the utility sector. The participants agreed, that the insufficient availability of vertical coordinates for the cables at present constitutes the biggest challenge. However, they emphasised the future potential of the AR solution in the prospect of ongoing improvements in data quality prompted by the new Danish data model for exchanging utility information.

关键词： Uncertainty visualisation Augmented reality Subsurface utilities Excavation damage

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Susceptibility of the Vegetation to Forest Fires in the Dry Forest of Ocana-Colombia 3rd

Susceptibility of the Vegetation to Forest Fires in the Dry ...

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3rd International Conference on Geospatial Information Sciences (iGISc)

作者： Herrera Galviz, Juan David Hernandez Criado, Juan Carlos Ocampo Lopez, Olga Lucia Univ Autonoma Manizales Manizales Colombia Univ Francisco de Paula Santander Ocana Ocana Norte De Santander Colombia

ISBN: (纸本)9783031614422;9783031614408;9783031614392

According to the climate zoning proposed by Holdrige, Ocana, in the department of Norte de Santander in Colombia, has a distribution of Dry Tropical Forest (Bs-T). This forest is threatened at the national level, so the Colombian state has been prioritized to restore and conserve it, since it provides a considerable number of ecosystem services and also, is key to the conservation of our biodiversity and the adaptation and mitigation of climate change. Forest fires have been a problem in the dry forest area of Ocana, with a frequency of up to 13 fires per year in 2015 alone, according to the regional fire department. So far, fire management in the area has been lim-ited to emergency response, not prevention, because there is no institutional framework for fire risk management at the local level. The objective of this work is to identify the zones of vulnerability of the vegetation to forest fires in the Bs-T area of Ocana. To do this, a protocol proposed by the Institute of Hydrology, Meteorology and Environmental Studies-IDEAM has been used, which specifies that it is necessary to first have a coverage map, adapted according to certain coverages (Corine Land Cover Methodology) prioritized by the protocol, to later generate the maps of type, duration and load of fuels, which are subjected to a multi-criteria evaluation in GIS soft-ware, thus generating the map of vegetation susceptibility to fires. As a result, for the predominant fuel type and load, a high threat was identified, mainly to the east of the Bs-T distribution area, while the low threat per fuel life, has a greater representativeness in hectares and is displayed mainly to the southeast of this area. It is concluded that the threat due to the vulnerability of vegetation to fire in Bs-T in Ocana is mainly moderate, representing an area of approximately 13,924 ha.

关键词： Forest fires Fuels Tropical dry forest Vegetation vulnerability

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MLS2LoD3: Refining Low LoDs Building Models with MLS Point Clouds to Reconstruct Semantic LoD3 Building Models

MLS2LoD3: Refining Low LoDs Building Models with MLS Point C...

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18th International 3D GeoInfo Conference

作者： Wysocki, Olaf Hoegner, Ludwig Stilla, Uwe TUM TUM Sch Engn & Design Photogrammetry & Remote Sensing Munich Germany Univ Appl Sci HM Dept Geoinformat Munich Germany

ISBN: (纸本)9783031437014;9783031436994;9783031436987

Although highly-detailed LoD3 building models reveal great potential in various applications, they have yet to be available. The primary challenges in creating such models concern not only automatic detection and reconstruction but also standard-consistent modeling. In this paper, we introduce a novel refinement strategy enabling LoD3 reconstruction by leveraging the ubiquity of lower LoD building models and the accuracy of MLS point clouds. Such a strategy promises at-scale LoD3 reconstruction and unlocks LoD3 applications, which we also describe and illustrate in this paper. Additionally, we present guidelines for reconstructing LoD3 facade elements and their embedding into the CityGML standard model, disseminating gained knowledge to academics and professionals. We believe that our method can foster development of LoD3 reconstruction algorithms and subsequently enable their wider adoption.

关键词： LoD3 reconstruction LoD3 applications Refinement strategy CityGML Semantic 3D city models

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