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Kappé, Jeroen (author)The city of Amsterdam faces the challenge of monitoring and assessing 200 kilometers of historic quay walls, of which much is deemed to be in poor condition. A key monitoring technique used is photogrammetry resulting in deformation testing. The fundamental data source forming the basis of this deformation analysis is a collection of overlapping...master thesis 2024
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Chen, Siyuan (author), Laefer, Debra F. (author), Zeng, Xiangding (author), Truong-Hong, Linh (author), Mangina, Eleni (author)Road networks are essential elements of a community's infrastructure and need regular inspection. Present practice requires traffic interruptions and safety risks for inspectors. The road detection system based on vehicle-mounted lasers is also quite mature, offering advantages such as high-precision defect detection, high automation, and...journal article 2024
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Hoogendoorn, Niels (author)Water is essential for life on earth and is vital for numerous sectors of our society. Pressures arising from climate change, growing populations, and the shift towards clean energy accentuate the importance of effective water management. To make decisions about water resource allocation, hydraulic modeling studies have been undertaken on large...master thesis 2023
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Gordon, Matthew (author), Batallé Garcia, A. (author), De Wolf, Catherine (author), Sollazzo, Aldo (author), Dubor, Alexandre (author), Wang, T. (author)To address the need for a shift from a linear to a circular economy in the built environment, this paper develops a semi-automated assistive process for planning building material deconstruction for reuse using sensing and scanning, Scan-to-BIM, and computer vision techniques. These methods are applied and tested in a real-world case study in...journal article 2023
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Nguyen, Kiet Tuan (author), Phan, Anh Thu Thi (author), Truong-Hong, Linh (author)Unmanned aerial vehicles (UAVs) are commonly utilized as cost-effective devices for data collection by capturing photos of target objects. UAV images have been used for many applications, such as civil engineering, transportation, architecture, surveying, and mapping. Although commercial UAV image data processing software is suitable for...conference paper 2023
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Chen, Siyuan (author), Zeng, Xiangding (author), Laefer, Debra F. (author), Truong-Hong, Linh (author), Mangina, Eleni (author)Imagery from Unmanned Aerial Vehicles can be used to generate three-dimensional (3D) point cloud models. However, final data quality is impacted by the flight altitude, camera angle, overlap rate, and data processing strategies. Typically, both overview images and redundant close-range images are collected, which significantly increases the...journal article 2023
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Wang, Linjun (author)3D building models play an important role in many real-world applications. Different models are suitable for different application scenarios based on their levels of detail. LOD3 models with facade details are crucial for many applications, such as virtual reality and urban simulation. Currently, 3D building models with lower LOD are largely...master thesis 2022
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Lodder, Stijn (author)In recent years, unstable quay walls are a problem in The Netherlands. 100-year-old quay walls in cities like Amsterdam are collapsing and endanger people and property. The government needs to renovate unstable quay walls quickly. With 600 kilometre of quay wall in Amsterdam alone, this is a great challenge. Currently, unstable walls are found...master thesis 2021
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Alvarez, Marcos (author)The 3D-digitisation of precious cultural heritage artifacts is highly important for historical preservation purposes. Doing so can help mitigate against events such as tourism damage, natural disasters, and war. It also enables access to three-dimensional data for researchers of all disciplines all around the globe to study these artifacts at...master thesis 2021
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Gupta, Yaman (author)The 3D Head-scanner is designed with the intent to scan a customer’s head such that the client can design personalized glasses using the generated mesh. The uniqueness of this process is due to the fact that the customers are uniquely disabled and therefore unable to clearly announce their comfort levels. The goal of this project is to design a...master thesis 2021
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Jonard, Swami (author)The control and design of kites for airborne wind energy requires an extensive understanding of kite dynamics. While these have been thoroughly analyzed with fluid-structure interaction models, very little experimental data exists to validate them. Specifically, most experiments on kites so far have not obtained local measurements that can be...master thesis 2021
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Prins, Hessel (author)An increasing load on the Dutch rail network requires new solutions for railway monitoring as increasing wear and tighter schedules limit the possibilities of regular maintenance. UAV (Unmanned Aerial Vehicle) based photogrammetry is such a solution which limits the presence of people near the railway and train hindrance. Photogrammetric feature...master thesis 2021
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Beselly, S.M. (author), van der Wegen, Mick (author), Grueters, Uwe (author), Reyns, J.A.H. (author), Dijkstra, Jasper (author), Roelvink, D. (author)This article presents a novel approach to explore mangrove dynamics on a prograding delta by integrating unmanned aerial vehicle (UAV) and satellite imagery. The Porong Delta in Indonesia has a unique geographical setting with rapid delta development and expansion of the mangrove belt. This is due to an unprecedented mud load from the LUSI...journal article 2021
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Yang, Y. (author), Xu, J. (author), Elkhuizen, W.S. (author), Song, Y. (author)Acquiring an accurate 3D scan of the human hand is a challenging task, mainly due to the complicated geometry and the instability of the hand. In this paper, we present a low-cost photogrammetry-based scanner that is designed for scanning the human hand. The scanner has fifty modules, each has a Raspberry Pi with an 8-megapixels camera. They...journal article 2021
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Poppema, Daan W. (author), Wijnberg, Kathelijne M. (author), Mulder, Jan P.M. (author), Vos, S.E. (author), Hulscher, Suzanne J.M.H. (author)In sandy environments, like the beach-dune system, buildings not only affect the airflow, but also the aeolian sediment transport in their surroundings. In this study, we determine how the horizontal size of sediment deposition patterns around buildings depends on the building's dimensions. Four one-day experiments were conducted at the beach...journal article 2021
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Zhou, K. (author)3D city models are increasingly used to maintain and improve urban infrastructure. Keeping 3D city models accurate and up-to-date is essential for municipalities to make decisions in a time of strongly increasing urbanization. 3D information provided by airborne laser scanning (ALS) is widely used for generating 3D city models. However, ALS data...doctoral thesis 2020
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Heitzig, D. N.W.M. (author), van Oudheusden, B.W. (author), Olejnik, D.A. (author), Karasek, M. (author)This study investigates the wing deformation of the DelFly II in forward flight conditions. A measurement setup was developed that maintains adequate viewing axes of the flapping wings for all pitch angles. Recordings of a high-speed camera pair were processed using a point tracking algorithm, allowing 136 points per wing to be measured...journal article 2020
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Rutzinger, M. (author), Anders, K. (author), Bremer, M. (author), Höfle, B. (author), Lindenbergh, R.C. (author), Oude Elberink, S. (author), Pirotti, F (author), Scaioni, M. (author), Zieher, T. (author)The 3rd edition of the international summer school "Close-range Sensing Techniques in Alpine terrain"took place in Obergurgl, Austria, in June 2019. This article reports on results from the training and seminar activities and the outcome of student questionnaire survey. Comparison between the recent edition and the past edition in 2017 shows...journal article 2020
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de Klerk, Reinoud (author)The influence of beach buildings on coastal dune development is still largely unknown, and it could pose a risk to the functionalities coastal dunes provide. The objectives of this research are covered by the main research question: What is the influence of specific types of beach buildings on aeolian coastal dune development and what are...master thesis 2019
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Sassen, Tom (author)In 2017 the Netherlands had 7146km of railways [Ramaekers et al., 2009], which are owned and managed by ProRail and have to be frequently surveyed, for quality inspection. Surveying is done using a variety of surveying techniques, many of which require surveyors to walk on or near the tracks, which could cause injuries. An alternative surveying...master thesis 2019