Journals

Improving Ray Tracing Understanding With Immersive Environments

2024

Nuno Verdelho Trindade, Lídia Custódio, Alfredo Ferreira, João Madeiras Pereira

IEEE Transactions on Learning Technologies

Plain text

[verdelhotrindade2024] Verdelho Trindade, N.; L. Custódio; A. Ferreira and J. M. Pereira, A. Improving Ray Tracing Understanding With Immersive Environments, in IEEE Transactions on Learning Technologies, vol. 17, pp. 1975-1988, 2024, doi: 10.1109/TLT.2024.3436656

BibTeX

@article{verdelhotrindade2024, author={Verdelho Trindade, Nuno and Custódio, Lídia and Ferreira, Alfredo and Pereira, João Madeiras}, journal={IEEE Transactions on Learning Technologies}, title={Improving Ray Tracing Understanding With Immersive Environments}, year={2024}, volume={17}, number={}, pages={1975-1988}, keywords={Ray tracing;Color;Visualization;Image color analysis;Prototypes;Three-dimensional displays;Usability;Educational games;educational simulations;immersive environments;learning via discovery;understanding;virtual reality}, doi={10.1109/TLT.2024.3436656}}

educational games educational simulations immersive environments learning via discovery understanding virtual reality

The Role of Situatedness in Immersive Dam Visualization: Comparing Proxied with Immediate Approaches

2024

Nuno Verdelho Trindade, Pedro Leitão, Daniel Gonçalves, Sérgio Oliveira, Alfredo Ferreira

Computers 2024, 13, 35, DOI: 10.3390/computers13020035

Plain text

[verdelhotrindade2024] Verdelho Trindade, N.; Leitão, P.; Gonçalves, D.; Oliveira, S.; Ferreira, A. The Role of Situatedness in Immersive Dam Visualization: Comparing Proxied with Immediate Approaches. Computers 2024, 13, 35. https://doi.org/10.3390/computers13020035

BibTeX

@article{computers13020035, AUTHOR = {Verdelho Trindade, Nuno and Leitão, Pedro and Gonçalves, Daniel and Oliveira, Sérgio and Ferreira, Alfredo}, TITLE = {The Role of Situatedness in Immersive Dam Visualization: Comparing Proxied with Immediate Approaches}, JOURNAL = {Computers}, VOLUME = {13}, YEAR = {2024}, NUMBER = {2}, ARTICLE-NUMBER = {35}, URL = {https://doi.org/10.3390/computers13020035}, ISSN = {2073-431X}, ABSTRACT = {Dam safety control is a multifaceted activity that requires analysis, monitoring, and structural behavior prediction. It entails interpreting vast amounts of data from sensor networks integrated into dam structures. The application of extended reality technologies for situated immersive analysis allows data to be contextualized directly over the physical referent. Such types of visual contextualization have been known to improve analytical reasoning and decision making. This study presents DamVR, a virtual reality tool for off-site, proxied situated structural sensor data visualization. In addition to describing the tool’s features, it evaluates usability and usefulness with a group of 22 domain experts. It also compares its performance with an existing augmented reality tool for the on-site, immediate situated visualization of structural data. Participant responses to a survey reflect a positive assessment of the proxied situated approach’s usability and usefulness. This approach shows a decrease in performance (task completion time and errors) for more complex tasks but no significant differences in user experience scores when compared to the immediate situated approach. The findings indicate that while results may depend strongly on factors such as the realism of the virtual environment, the immediate physical referent offered some advantages over the proxied one in the contextualization of data.}, DOI = {10.3390/computers13020035} }

augmented reality dam safety control immediate situated visualization immersive analytics proxied situated visualization situated analysis structural health monitoring virtual reality

Extended Reality in AEC

2023

Nuno Verdelho Trindade, Alfredo Ferreira, João Madeiras Pereira, Sérgio Oliveira

Automation in Construction, Volume 154, October 2023, 105018

Plain text

[verdelhotrindade2023] Nuno Verdelho Trindade, Alfredo Ferreira, João Madeiras Pereira, and Sergio Oliveira. Extended reality in AEC. Automation in Construction, Volume 154, October 2023, 105018, DOI: 10.1016/j.autcon.2023.105018

BibTeX

@article{verdelhotrindade2023, title = {Extended reality in AEC}, journal = {Automation in Construction}, volume = {154}, pages = {105018}, year = {2023}, issn = {0926-5805}, doi = {https://doi.org/10.1016/j.autcon.2023.105018}, url = {https://www.sciencedirect.com/science/article/pii/S0926580523002789}, author = {Nuno {Verdelho Trindade} and Alfredo Ferreira and João {Madeiras Pereira} and Sérgio Oliveira}, keywords = {Systematic literature review, Extended reality, Virtual reality, Augmented reality, AEC}, abstract = {This article presents a survey on extended reality (XR) application to architecture, engineering, and construction (AEC). A systematic literature review (SLR) of studies found in the Scopus digital library is carried out for that purpose. The SLR comprises 983 relevant papers published between 2011 and 2022. It frames and aggregates research by the AEC field and by the usage of XR technologies. With that aim, specific taxonomies are developed and applied. Research typologies, including used approaches and contributions, are also examined. Furthermore, the limitations and challenges cited in the analyzed studies are addressed. This SLR is primarily addressed to researchers for decision-making in identifying and scoping future research activities. It is also directed to AEC practitioners as a source to determine the conditions in which XR can be used and what its implications are.} }

aec augmented reality extended reality systematic literature review virtual reality

DamAR: Augmented Reality in Dam Safety Control

2019

Nuno Verdelho Trindade, Alfredo Ferreira, Sérgio Oliveira

International Journal on Hydropower and Dams Nr. 5, Vol. 26

Plain text

[verdelhotrindade2019] Nuno Verdelho Trindade, Alfredo Ferreira, and Sergio Oliveira. DamAR: Augmented Reality in Dam Safety Control. International Journal on Hydropower and Dams, no. 5 vol. 25, p. 56-62, Aqua Media International Ltd., Wallington, England, 2019, https://www.hydropower-dams.com/articles/damar-augmented-reality-in-dam-safety-control/

BibTeX

@article{verdelhotrindade2019, author = {Nuno {Verdelho Trindade} and Alfredo {Ferreira} and Sergio {Oliveira}}, title = {DamAR: Augmented Reality in Dam Safety Control}, year = {2019}, publisher = {Aqua Media International Ltd.}, address = {Wallington, England}, url = {https://www.hydropower-dams.com/articles/damar-augmented-reality-in-dam-safety-control/}, journal = {International Journal on Hydropower and Dams}, number= {5}, volume = {26}, pages={56-62}, numpages = {7}, keywords = {augmented reality, dam safety control, structural engineering, concrete dams}, abstract = {This paper explores the application of augmented reality to the inspection and monitoring of large structures, namely concrete dams. It proposes an approach to dam safety control, using augmented reality, focused on offering new visualization possibilities, that are not accessible using traditional methods. The specification and development of DamAR, a proof-of-concept prototype that allows the visualization, on-site, of relevant structural health monitoring information, in an augmented reality environment, is described, including the benefits to structural engineers and observation technicians. A preliminary evaluation, aimed at validating the proposed approach, shows that augmented reality technologies can be used efficiently in dam safety control.} }

augmented reality concrete dams dam safety control structural engineering

Conferences

Visualizing Plasma Physics Simulations in Immersive Environments

2024

Nuno Verdelho Trindade, Óscar Amaro, David Brás, Daniel Gonçalves, João Madeiras Pereira, Alfredo Ferreira

19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1 GRAPP, HUCAPP and IVAPP: IVAPP, 645-652, 2024 , Rome, Italy, ISBN 978-989-758-679-8; ISSN 2184-4321

Plain text

[verdelhotrindade2024] Verdelho Trindade, N.; Amaro, Ó.; Brás, D.; Gonçalves, D.; Madeiras Pereira, J. and Ferreira, A. (2024). Visualizing Plasma Physics Simulations in Immersive Environments. In Proceedings of the 19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - IVAPP; ISBN 978-989-758-679-8; ISSN 2184-4321, SciTePress, pages 645-652. DOI: 10.5220/0012357100003660

BibTeX

@inproceedings{verdelhotrindade2024, author={Nuno {Verdelho Trindade}. and Óscar Amaro. and David Brás. and Daniel Gonc{C}alves. and João {Madeiras Pereira}. and Alfredo Ferreira.}, title={Visualizing Plasma Physics Simulations in Immersive Environments}, booktitle={Proceedings of the 19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - IVAPP}, year={2024}, pages={645-652}, publisher={SciTePress}, organization={INSTICC}, doi={10.5220/0012357100003660}, isbn={978-989-758-679-8}, issn={2184-4321}, }

data analysis immersive visualization plasma physics scientific visualization virtual reality

Immersive Situated Analysis of Dams’ Behavior

2023

Nuno Verdelho Trindade, Pedro Leitão, Daniel Gonçalves, Sérgio Oliveira, Alfredo Ferreira

5th International Conference on Graphics and Interaction - ICGI 2023, Tomar, Portugal, 2023, Electronic ISBN:979-8-3503-5817-9, PoD ISBN:979-8-3503-5818-6, DOI: 10.1109/ICGI60907.2023.10452725

Plain text

[verdelhotrindade2023] Nuno Verdelho Trindade, Pedro Leitão, Daniel Gonçalves, Sérgio Oliveira, and Alfredo Ferreira. Immersive Situated Analysis of Dams' Behavior. 5th International Conference on Graphics and Interaction - ICGI 2023, p. 105-112, Eurographics, IEEE, Tomar, Portugal, 2023, https://doi.org/10.1109/ICGI60907.2023.10452725

BibTeX

@inproceedings{verdelhotrindade2023, author={Verdelho Trindade, Nuno and Leitão, Pedro and Gonçalves, Daniel and Oliveira, Sérgio and Ferreira, Alfredo}, booktitle={2023 International Conference on Graphics and Interaction (ICGI)}, title={Immersive Situated Analysis of Dams' Behavior}, year={2023}, volume={}, number={}, pages={1-8}, keywords={Surveys;Visualization;Dams;Prototypes;Data visualization;User experience;Safety;situated analysis;virtual reality;immersive visualization;dam safety control;structural health monitoring}, abstract = {Dam safety control is a complex and challenging task that involves the analysis, monitoring, and behavior prediction of the various components of dams. Its primary objective is to ensure the safety and optimal performance of these structures. This undertaking involves the abstraction and interpretation of extensive structural, hydraulic, and geotechnical data, typically acquired through sensor networks embedded within the dam. This study introduces 'DamVR', a virtual reality tool for situated dam safety control data visualization. This tool allows dam engineers and other industry professionals to analyze the fluctuation of structural behavior over time. Its immersive environment contains a realistic representation of the dam structure, networks of sensors, and surroundings. It aims to frame the data within the visual context of the object of the analysis. This contextualization is intended to improve analytical reasoning and decision-making. The usability of DamVR was evaluated by a group of domain experts and compared to an existing augmented reality tool in similar tasks. The results indicate that DamVR is a usable and effective dam safety control data visualization tool.}, doi={10.1109/ICGI60907.2023.10452725}}

dam safety control immersive visualization situated analysis structural health monitoring virtual reality

Extended Reality in the Safety Control of Dams

2020

Nuno Verdelho Trindade, Alfredo Ferreira, Sérgio Oliveira

Fourth International Dam World Conference - DW2020. vol. 1, Paper 169, pag. 71-89, 20 pages

Plain text

[verdelhotrindade2020] Nuno Verdelho Trindade, Alfredo Ferreira, and Sergio Oliveira. Extended reality in the safety control of dams. 4th International Dam World Conference, vol. 1, p. 71-89, LNEC, Lisbon, Portugal, 2020, http://repositorio.lnec.pt:8080/jspui/handle/123456789/1012969

BibTeX

@inproceedings{verdelhotrindade2020, author = {Nuno {Verdelho Trindade} and Alfredo {Ferreira} and Sergio {Oliveira}}, title = {Extended Reality in the Safety Control of Dams}, year = {2020}, publisher = {Laboratorio Nacional de Engenharia Civil (LNEC)}, address = {Lisbon, Portugal}, url = {http://repositorio.lnec.pt:8080/jspui/handle/123456789/1012969}, booktitle = {Proceedings of the Fourth International Dam World Conference}, articleno = {Paper 169}, volume = {1}, pages = {71-89}, numpages = {20}, keywords = {dam safety control, extended reality, augmented reality, structural health monitoring, concrete dams}, location = {Lisbon, Portugal}, abstract = {Dam Safety Control has been at the front line of technology adoption in what concerns data acquisition. However, it does not take full advantage of the latest advancements when it comes to in-situ, real-time, information visualization. This work explores the application of Augmented Reality to the inspection and monitoring of large Civil Engineering structures, namely concrete dams. The proposed approach focuses on offering new visualization possibilities, that are not accessible through traditional means, to Dam Safety Control. In that scope, it depicts the specification and development of a proof-of-concept prototype that allows the monitoring of relevant structural-related information in an Augmented Reality environment. In particular, it offers an easy and straightforward way for Civil Engineers and Observation Technicians a mean to access data from the network of sensors situated in the downstream face and the interior of the structure. Besides providing insightful information on the current status, it allows exploring the evolution in time of values registered in each sensor. A preliminary study aimed at validating the proposed approach shows that Augmented Reality technologies can be used efficiently in Dam Safety Control.} }

augmented reality concrete dams dam safety control extended reality structural health monitoring

Ferramentas Digitais Avançadas de Projeto de Pavimentos Rodoviários e o seu Papel na Otimização do Dimensionamento de Estruturas Correntes

2016

Nuno Verdelho Trindade

8º Congresso Rodoviário Português (8th Portuguese Road Congress)

Plain text

[verdelhotrindade2016] Nuno Verdelho Trindade. Ferramentas Digitais Avançadas de Projeto de Pavimentos Rodoviários e o seu Papel na Otimização do Dimensionamento de Estruturas Correntes. 8º Congresso Rodoviário Português, artigo 41, Centro Rodoviário Português, Lisboa, Portugal, 2016, http://crp.pt/docs/A48S183-8_CRP_T5_041.pdf

BibTeX

@inproceedings{verdelhotrindade2016, author = {Nuno {Verdelho Trindade}}, title = {Advanced Digital Road Pavement Design Tools and their role in the Optimization of Conventional Structures}, year = {2016}, publisher = {Portuguese Road Center(CRP)}, address = {Lisbon, Portugal}, url = {http://crp.pt/docs/A48S183-8_CRP_T5_041.pdf}, booktitle = {8th Portuguese Road Congress}, articleno = {Paper 41}, numpages = {7}, keywords = {pavement design, pavement projects, structural design software, road pavements, airport pavements}, location = {National Civil Engineering Laboratory (LNEC), Lisbon, Portugal}, abstract = {O presente trabalho pretende apresentar as principais vantagens e o impacto que as tecnologias e processos de última geração têm na produtividade dos gabinetes de engenharia, no que diz respeito ao projeto de vias de comunicação e em particular ao dimensionamento de pavimentos rodoviários. Estes novos processos serão analisados e exemplificados através da descrição do funcionamento da suite de software “INPAV Design”, desenvolvida pelo Autor e dirigida à automatização integral do dimensionamento de pavimentos rodoviários.}, note = {English translation of "[Ferramentas Digitais Avançadas de Projeto de Pavimentos Rodoviários e o seu Papel na Otimização do Dimensionamento de Estruturas Correntes]" : Portuguese, by Nuno Verdelho Trindade} }

airport pavements pavement design pavement projects road pavements structural design software

Soluções para Automatização Integral do Dimensionamento de Pavimentos Rodoviários

2013

Nuno Verdelho Trindade

7º Congresso Rodoviário Português (7th Portuguese Road Congress)

Plain text

[verdelhotrindade2013] Nuno Verdelho Trindade. Soluções para Automatização Integral do Dimensionamento de Pavimentos Rodoviários. 7º Congresso Congresso Rodoviário Português, artigo 85, Centro Congresso Rodoviário Português, Lisboa, Portugal, 2013, http://www.crp.pt/docs/A45S124-85_Art_T5_7CRP_2013.pdf

BibTeX

@inproceedings{verdelhotrindade2013, author = {Nuno {Verdelho Trindade}}, title = {Solutions for Integral Automation of Road Pavement Design}, year = {2013}, publisher = {Portuguese Road Center(CRP)}, address = {Lisbon, Portugal}, url = {http://www.crp.pt/docs/A45S124-85_Art_T5_7CRP_2013.pdf}, booktitle = {7th Portuguese Road Congress}, articleno = {Paper 85}, numpages = {7}, keywords = {pavement design, design software, road paving}, location = {National Civil Engineering Laboratory (LNEC), Lisbon, Portugal}, abstract = {Neste trabalho serão analisadas, a importância da utilização de sistemas de dimensionamento automático integral no projeto de pavimentação, que permitam acompanhar o processo na sua totalidade, desde a fase de modelação até à obtenção de soluções finais e produção de peças escritas e desenhadas e as possibilidades que a capacidade e disponibilidade computacional atual nos podem fornecer neste campo. Nesse âmbito será também apresentado o desenvolvimento de um programa de cálculo automático para o dimensionamento de pavimentos rodoviários, criado com o objetivo de suprir as lacunas dos programas de cálculo usados correntemente.}, note = {English translation of "[Soluções para Automatização Integral do Dimensionamento de Pavimentos Rodoviários]" : Portuguese, by Nuno Verdelho Trindade} }

design software pavement design road paving

Development of a Computerized, Low-Cost, Portable System for Visual Inspection, Characterization and Maintenance Management of Highway Pavements

2010

Nuno Verdelho Trindade

16th International Road Federation (IRF) World Meeting

Plain text

[verdelhotrindade2010] Nuno Verdelho Trindade. Development of a Computerized, Low-Cost, Portable System for Visual Inspection, Characterization and Maintenance Management of Highway Pavements. 16th International Road Federation (IRF) World Meeting, paper 458, International Road Federation (IRF), Lisbon, Portugal, 2010

BibTeX

@inproceedings{verdelhotrindade2010, author = {Nuno {Verdelho Trindade}}, title = {Development of a Computerized, Low-Cost, Portable System for Visual Inspection, Characterization and Maintenance Management of Highway Pavements}, year = {2010}, publisher = {International Road Federation (IRF)}, address = {Washington, DC, USA}, booktitle = {16th International Road Federation (IRF) World Meeting}, articleno = {Paper 458}, numpages = {7}, keywords = {pavement preservation, visual inspection, software, inspection equipment, maintenance management}, location = {Lisbon, Portugal}, abstract = {The methodologies of visual inspection and characterization of highway pavements have not been up-to-date with the wide-ranging technological breakthroughs of the recent years. The traditional techniques, which use archaic instruments for positioning and tracking, continue to be massively used. Although there are a few technologically advanced solutions available, in general these involve very expensive equipment, can only be used in conjunction with an inspection vehicle and, therefore, do not enclose the level of versatility needed in most cases. In addition, these solutions are not practical for inspecting highly trafficked intersections, especially when some level of detail and precision are needed. Furthermore the office work required to organize the extensive raw data collected in the field, by traditional means, is considerable. It often involves several time-spending stages in the treatment of the data records, which can lead to errors and imprecision, before it can be available for analysis and interpretation. It is urgent to adopt more effective and versatile methods that are both economically and technically proficient and also more sustainable without the substantial costs in manpower, time and energy. The purpose of this work is to present an ongoing research focused on creating an integrated system to aid the visual inspection and characterization of pavements and manage its state of preservation. The premises of this development implied that the system should use state-of-the-art technology (in both hardware and software), allow a high level of detail in the characterization, be manifestly low-cost, user-friendly, portable and ready to be used on-foot or installed in a vehicle, significantly reduce the time and means involved in the field work, decrease the number of phases in the handling of the field data and efficiently manage the condition of the pavement. Starting with the experience acquired in practical cases where detailed pavement inspection and characterization took place, namely a section of the A1 portuguese motorway, a comparison between the means involved in the use of traditional methods and the use of this new system, will be made. In addition the several pavement pathology classification criteria available nowadays and the way this system deals with it, will be shown. Finally the repercussion that the commercialization and generalized use of this type of low-cost systems can have in the quality of the results and in the reduction of material and human resources will be discussed.} }

inspection equipment maintenance management pavement preservation software visual inspection

Environmental Concrete: New Ways of Building a Green Planet

2009

Nuno Verdelho Trindade, Sérgio Lopes

CE09: Civil Engineering – Towards a Better Environment

Plain text

[verdelhotrindade2009] Nuno Verdelho Trindade and Sérgio Lopes. Environmental Concrete: New Ways of Building a Green Planet. CE09: Civil Engineering – Towards a Better Environment, CI-Premier Pte Ltd., Coimbra, Portugal, 2009

BibTeX

@inproceedings{verdelhotrindade2009, author = {Nuno {Verdelho Trindade}, and Sergio {Lopes}}, title = {Environmental Concrete: New Ways of Building a Green Planet}, year = {2009}, publisher = {CI-Premier Pte Ltd.}, address = {Singapore}, booktitle = {CE09: Civil Engineering – Towards a Better Environment}, keywords = {concrete, environment, sustainability, new materials}, location = {Coimbra, Portugal}, abstract = {Concrete is, nowadays, the most common structural material used in construction. Due to its limited durability, to the extensive use of natural resources in its production and to the amount of residue generated by its use, the concrete, as it is known today, might not have a place in the near future, as demands for greener materials grow. A new range of materials is, slowly but decisively, arriving. As far as concrete structures are concerned, a completely new material is unlikely to be invented and a reinvention of the traditional concrete would be the shape of things to come. The new concrete will be more sustainable, with a smaller carbon footprint and will also be easier to fabricate, and, at the same time, more efficient, durable and cheaper. In this article the different members of this innovative family of concrete that, in what concerns to sustainability, are of the utmost importance in the genesis of a new civil construction philosophy, will be presented.} }

concrete environment new materials sustainability

Book Chapters

The Future of Structural Health Monitoring with Extended Reality

2025

Nuno Verdelho Trindade, Alfredo Ferreira, Daniel Gonçalves, Sérgio Oliveira

Digital Transformation in the Construction Industry, Chapter 30

Plain text

[verdelhotrindadeshmxr2025] Verdelho Trindade, N.; Ferreira, A.; Gonçalves, D. and Oliveira, S. (2025). The future of structural health monitoring with extended reality (Chapter 30). In Woodhead Publishing Series in Civil and Structural Engineering, Digital Transformation in the Construction Industry, Woodhead Publishing; ISBN 9780443298615; Elsevier, Woodhead Publishing, pages 593-620. DOI: 10.1016/B978-0-443-29861-5.00030-5

BibTeX

@incollection{verdelhotrindadeshmxr2025, title = {Chapter 30 - The future of structural health monitoring with extended reality}, editor = {Ehsan Noroozinejad Farsangi and Mohammad Noori and T.Y Yang and Vasilis Sarhosis and Seyedali Mirjalili and Mirosław J. Skibniewski}, booktitle = {Digital Transformation in the Construction Industry}, publisher = {Woodhead Publishing}, pages = {593-620}, year = {2025}, series = {Woodhead Publishing Series in Civil and Structural Engineering}, isbn = {978-0-443-29861-5}, doi = {https://doi.org/10.1016/B978-0-443-29861-5.00030-5}, url = {https://www.sciencedirect.com/science/article/pii/B9780443298615000305}, author = {Nuno Verdelho Trindade and Alfredo Ferreira and Daniel Gonçalves and Sérgio Oliveira}, keywords = {Extended reality, structural health monitoring, virtual reality, augmented reality, safety control}, abstract = {Extended reality (XR) comprises the set of technologies directed at changing users’ observable reality. These technologies include most notably, virtual reality and augmented reality, and also other lesser-known modalities like diminished reality. The ongoing global transition to digital has determined the increasing adoption of these visualization and interaction technologies in the construction industry. Examples of applications of such technologies can be found for domains extending from design and planning to construction and operation. Some of the most mature applications of XR to the construction industry can be found in the structural health monitoring (SHM) field. This maturity results from the tangible advantages of performance, precision, and convenience, among others, that XR technologies have been proven to bring to this area. The use of such technologies, however, is not without important challenges, which must be taken into account when researching and developing applications. In this chapter, we analyze how the different modalities of XR are being applied in the context of the distinct areas of SHM. A specific case study of the application of these technologies to dam safety control is also described. In that scope, a set of guidelines is presented to assist researchers and domain experts in implementing such solutions. Finally, a reflection on the future of XR in SHM is carried out.} }

augmented reality extended reality safety control structural health monitoring virtual reality

Dissertations

Immersive Analytics in Dam Safety Control

2025

Nuno Verdelho Trindade

Instituto Superior Técnico, Universidade de Lisboa, Portugal

Plain text

[verdelhotrindadephdthesis2025] Nuno Verdelho Trindade. Immersive analytics in dam safety control. Universidade de Lisboa, Instituto Superior Técnico, Lisbon, Portugal, 2025, https://scholar.tecnico.ulisboa.pt/records/mMUWYXyv__5FeaEeUfRIEEwbrGh3ua8TwIHo

BibTeX

@phdthesis{verdelhotrindadephdthesis2025, author = {Nuno {Verdelho Trindade}}, title = {Immersive analytics in dam safety control}, school = {Universidade de Lisboa, Instituto Superior Técnico, Lisbon, Portugal}, source = {https://scholar.tecnico.ulisboa.pt/records/mMUWYXyv__5FeaEeUfRIEEwbrGh3ua8TwIHo}, year = {2025} keywords = {proxsituated-visualization, situated-visualization, immersive-analytics, extended-reality, dam-safety-control}, abstract = {Dam safety control consists of monitoring and analyzing observed data and comparing it with computed results from numerical models. Dam data visualization is typically carried out on desktop computers using traditional charts. Visual contextualization of the information contained in these charts with the area of the dam it pertains to is fundamental to understanding the overall behavior of dams. While nothing provides a more accurate spatial perception of the structures’ features than standing in front of the actual dam, such a scenario is impractical. Dams are often located in remote locations, and data analysis is typically carried out in the office. And while looking at the data without contextualizing it with the dam is not ideal, looking at the real dam without contextualizing it with the data is equally problematic. Immersive analytics uses extended reality to generate immersive environments where data can be visualized. Our research explores how it can be applied to dam safety control to improve structural data visualization. We address a subarea called situated visualization, aimed at displaying information on-site contextualized with the object of analysis. However, because dam data analysis activities are typically carried out off-site, we focus on using virtual 3D models instead of the actual dam (proxsituated visualization). We address the development of specialized prototypes, which are used to support a user study designed to determine if and where proxsituated visualization can improve dam safety control. The study compares performance and user experience across multiple modes/devices (desktop computer, virtual reality, and augmented reality) with distinct levels of visual detail and data representation indirection. Our findings suggest that there are indeed some advantages in both user experience and analysis performance in immersive proxsituated environments, compared to traditional/non-immersive.} }

dam safety control extended reality immersive analytics proxsituated-visualization situated-visualization

Augmented Reality in Dam Monitoring

2018

Nuno Verdelho Trindade

Instituto Superior Técnico, Universidade de Lisboa, Portugal

Plain text

[verdelhotrindade2018] Nuno Verdelho Trindade. Augmented Reality in Dam Monitoring. Universidade de Lisboa, Instituto Superior Técnico, Lisbon, Portugal, 2018, https://fenix.tecnico.ulisboa.pt/cursos/meic-t/dissertacao/1972678479054247

BibTeX

@mastersthesis{verdelhotrindade2018, author = {Nuno {Verdelho Trindade}}, title = {Augmented Reality in Dam Monitoring}, school = {Universidade de Lisboa, Instituto Superior Técnico, Lisbon, Portugal}, source = {https://fenix.tecnico.ulisboa.pt/cursos/meic-t/dissertacao/1972678479054247}, year = {2018} keywords = {augmented reality, dam safety control, structural health monitoring, user interface}, abstract = {The construction industry has shown, over recent years, an increased interest in technologies such as Augmented Reality, as a mean to optimize its processes. This work explores the application of Augmented Reality to the inspection and monitoring of large Civil Engineering structures, namely of dams. It presents and discusses related work regarding the use of Augmented Reality in Engineering, Architecture and Construction. Furthermore, it proposes an approach to dam safety control, using Augmented Reality, focused on offering new visualization possibilities, that are not accessible through traditional means. In that scope it depicts the specification and development of a proof-of-concept prototype that allows the visualization, in-situ, of relevant structural health monitoring information, in an Augmented Reality environment. In particular, it offers Civil Engineers and Observation Technicians a mean to visualize, superimposed to the Cabril Dam (the case study covered by this project), the network of sensors situated in the downstream face and the interior of the structure, as well as the evolution of the values registered in each sensor. A preliminary evaluation, aimed at validating the proposed approach, shows that Augmented Reality technologies can be efficiently used in dam safety control.} }

augmented reality dam safety control structural health monitoring user interface

Construção de Estruturas de Betão e Desenvolvimento Sustentável

2008

Nuno Verdelho Trindade

University of Coimbra, Faculty of Sciences and Technology, Department of Civil Engineering, Coimbra, Portugal

Plain text

[verdelhotrindade2008] Nuno Verdelho Trindade. Construção de Estruturas de Betão e Desenvolvimento Sustentável. Universidade de Coimbra, Faculdade de Ciências e Tecnologia, Departamento de Engenharia Civil, Coimbra, Portugal, 2008

BibTeX

@mastersthesis{verdelhotrindade2008, author = {Nuno {Verdelho Trindade}}, title = {Construction of Concrete Structures and Sustainable Development}, school = {University of Coimbra, Faculty of Sciences and Technology, Department of Civil Engineering, Coimbra, Portugal}, year = {2008} keywords = {concrete structures, sustainable development, green construction, structural engineering}, abstract = {O presente trabalho tem como objectivo evidenciar os principais factores que pesam na utilização e desempenho ambiental do Betão. Sendo o desenvolvimento sustentável uma questão primordial dos nossos dias, ir-se-á analisar o papel da indústria da construção nos objectivos da sustentabilidade nas suas múltiplas dimensões, particularmente a ecológica, a económica e a social. As preocupações de um projecto de construção no passado centravam-se unicamente na dualidade custos-benefícios, no entanto, nas últimas décadas, assistiu-se a uma progressiva evolução, no sentido de considerar um terceiro componente, agora elevado a primordial, a preservação do meio natural. Neste âmbito, irão ser definidos os objectivos e estratégias fundamentais de um projecto na sua interacção com o ambiente. Um breve apontamento histórico sobre a utilização do betão, seguido da abordagem dos seus principais componentes e propriedades, complementará este trabalho. O impacto ambiental do betão será analisado em todas as suas vertentes. Assim, serão evidenciados os custos ambientais quer ao nível do consumo de recursos naturais, quer no que diz respeito ao fabrico dos seus constituintes. Abordar-se-á a avaliação do impacto ambiental provocado pela produção de materiais necessários à execução de estruturas em betão fazendose uma análise comparativa com estruturas de outros materiais vulgarmente utilizados na construção civil, nomeadamente o aço e a madeira. Sendo a indústria da construção a principal produtora de resíduos, a prática da sua reciclagem e reutilização apresenta-se como a maior responsável pela melhoria da sustentabilidade. A este nível serão referidas as linhas de actuação dos organismos que, em Portugal, regem a gestão dos resíduos de construção e demolição (RCD) e os consequentes benefícios ambientais que daí advêm. Além disso, serão enumerados os principais materiais passíveis de serem reciclados e reutilizados, nomeadamente na produção de novos betões que terão implicações directas na preservação dos recursos naturais. Finalmente irão ser abordadas medidas e metodologias para a gestão de resíduos e minimização dos impactos ambientais do betão com a apresentação de exemplos concretos.}, note = {English translation of "[Construção de Estruturas de Betão e Desenvolvimento Sustentável]" : Portuguese, by Nuno Verdelho Trindade} }

concrete structures green construction structural engineering sustainable development

Posters

Visualizing Plasma Physics Simulations in Immersive Environments (Poster)

Best Poster Award

2024

Nuno Verdelho Trindade, Óscar Amaro, David Brás, Daniel Gonçalves, João Madeiras Pereira, Alfredo Ferreira

19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1 GRAPP, HUCAPP and IVAPP: IVAPP, 645-652, 2024 , Rome, Italy, ISBN 978-989-758-679-8; ISSN 2184-4321

Situated Immersive Analytics in Dam Safety Control

2023

Nuno Verdelho Trindade, Alfredo Ferreira, Sérgio Oliveira, Daniel Gonçalves

PhD DEI 2023

Dam Health Monitoring with VR

2022

Pedro Leitão, Nuno Verdelho Trindade, Sérgio Oliveira, Alfredo Ferreira

5th International Conference on Graphics and Interaction - ICGI 2023, Tomar, Portugal, 2023, Electronic ISBN:979-8-3503-5817-9, PoD ISBN:979-8-3503-5818-6, DOI: 10.1109/ICGI60907.2023.10452725

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Year of Publication