Searched for: subject%3A%22Laser%255C+scanning%22
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Balado Frías, J. (author), González, Elena (author), Arias, Pedro (author), Castro, David (author)
Traffic signs are a key element in driver safety. Governments invest a great amount of resources in maintaining the traffic signs in good condition, for which a correct inventory is necessary. This work presents a novel method for mapping traffic signs based on data acquired with MMS (Mobile Mapping System): images and point clouds. On the...
journal article 2020
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Woudenberg, Pieter (author)
The structural reliability of the wooden tower of the Grote of St. BavoChurch in Haarlem has been assessed with the regular methods. In addition to the regular methods, some modern technologies have been used in the structural analysis. The mechanical properties of the timber have been determined with longitudinal vibration tests and visual...
master thesis 2019
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van der Horst, Bibi (author)
Road damage detection is important for road safety and road maintenance planning. Road surface anomalies, like potholes, cracks and ravelling, affect driving conditions, such as driving comfort and safety, noise emission, load loss of trucks, increase of fuel consumption and traffic circulation. Locali- sation of these anomalies allows for...
master thesis 2019
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Kapoor, Ekta (author)
In the times of growing attention towards renovation for energy efficiency in the built environment, the building stock particularly associated with heritage value deemed monumental or protected is currently exempted under the Dutch law to comply with the energy performance guidelines. <br/>Limitations with regards to protecting the aesthetics...
master thesis 2019
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Du, Shenglan (author)
Trees are of great significance throughout the world, both in urban scenes and in natural environments. Models of trees can be widely applied in various fields, for instance, landscape design, geo-simulation, environment modelling, and forestry inventories. Recently, laser scanning technology has been rapidly developed, making it possible to...
master thesis 2019
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Spaans, Lennard (author)
The beach recovery process determines the resilience of a sandy coast and is an important aspect of the coastal safety. Sediment stored underwater due to storms is transported onshore by the migration of subtidal and intertidal bars under mild wave conditions. The intertidal zone is an im-portant interface, connecting the marine and aeolian zone...
master thesis 2019
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Flikweert, Puck (author)
Because of urbanisation, more than 50% of the global population now lives in cities, a number that is ever-increasing. This leads to a need for more dense and complex building constructions, driven by the fact that people are living increasingly close to one another. These structures are often so large that it becomes difficult to navigate in...
master thesis 2019
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Rajvanshi, Ullas (author)
This paper describes a methodology for an automated floor plan generation using point cloud captured via Mobile Laser Scanner(MLS) for indoor navigation purposes. The method takes as input a 3D point cloud and using geometrical features, a<br/>ground plane histogram is computed representing the points density using projection. Finally using edge...
student report 2019
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Presvyri, Stamatia (author)
The shear capacity of concrete members is a major challenge of structural concrete research through the years. Many theoretical models have been developed and various experiments have been performed, focusing on the accurate prediction of the shear behavior. Many of the available theoretical models assume that a large contribution of the shear...
master thesis 2019
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Flikweert, P.L.M. (author), Peters, R.Y. (author), Díaz-Vilarino, L. (author), Voûte, R.L. (author), Staats, Bart (author)
Indoor environments tend to be more complex and more populated when buildings are accessible to the public. The need for knowing where people are, how they can get somewhere or how to reach them in these buildings is thus equally increasing. In this research point clouds are used, obtained by dynamic laser scanning of a building, since we cannot...
journal article 2019
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Brand, Evelien (author), De Sloover, Lars (author), De Wulf, Alain (author), Montreuil, Anne Lise (author), Vos, S.E. (author), Chen, Margaret (author)
Sediment transport is a key element in intertidal beach morphodynamics, but measurements of sediment transport are often unreliable. The aim of this study is to quantify and investigate cross-shore sediment transport and the resulting topographic changes for a tide-dominated, sandy beach. Two fortnight-long field experiments were carried out...
journal article 2019
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Truong-Hong, Linh (author), Lindenbergh, R.C. (author)
Increasing traffic weights and aggressive environmental conditions may result in unexpected deterioration of a bridge’s components. Particularly, most bridges in Europe and US over half life span are affected by such impact. Structural deficiencies may cause partial or full collapse of bridges resulting in problems for human life, economy,...
conference paper 2019
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Du, Shenglan (author), Lindenbergh, R.C. (author), Ledoux, H. (author), Stoter, J.E. (author), Nan, L. (author)
Laser scanning is an effective tool for acquiring geometric attributes of trees and vegetation, which lays a solid foundation for 3-dimensional tree modelling. Existing studies on tree modelling from laser scanning data are vast. However, some works cannot guarantee sufficient modelling accuracy, while some other works are mainly rule-based and...
journal article 2019
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Lindenbergh, R.C. (author), Van Der Kleij, S. (author), Kuschnerus, M. (author), Vos, S.E. (author), de Vries, S. (author)
Sandy beaches are highly dynamic areas affected by different natural and anthropogenic effects. Large changes, caused by a storm for example, are in general well-understood and easy to measure. Most times, only small changes, at the centimeter scale, are occurring, but these changes accumulate significantly over periods from weeks to months....
journal article 2019
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Van Der Horst, B. B. (author), Lindenbergh, R.C. (author), Puister, S. W.J. (author)
Road surface anomalies affect driving conditions, such as driving comfort and safety. Examples for such anomalies are potholes, cracks and ravelling. Automatic detection and localisation of these anomalies can be used for targeted road maintenance. Currently road damage is detected by road inspectors who drive slowly on the road to look out...
journal article 2019
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Truong-Hong, Linh (author), Laefer, D. F. (author), Lindenbergh, R.C. (author)
When aerial laser scanning (ALS) is deployed with targeted flight path planning, urban scenes can be captured in points clouds with both high vertical and horizontal densities to support a new generation of urban analysis and applications. As an example, this paper proposes a hierarchical method to automatically extract data points describing...
journal article 2019
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O'Donnell, J. (author), Truong-Hong, Linh (author), Boyle, N. (author), Corry, Edward (author), Cao, Jun (author), Laefer, Debra F. (author)
Current processes that create Building Energy Performance Simulation (BEPS) models are time consuming and costly, primarily due to the extensive manual inputs required for model population. In particular, generation of geometric inputs for existing building models requires significant manual intervention due to the absence, or outdated nature of...
journal article 2019
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Hobbelen, Rik (author)
This thesis presents a case study on beach growth of a South Holland beach located slightly north of the Sand Motor over the course of six months, which was measured using a terrestrial laser scanner (TLS). This device was set up to continuously take hourly full coverage measurements of a one kilometre stretch of beach from a hotel rooftop. <br/...
master thesis 2018
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Liang, Xinlian (author), Hyyppä, Juha (author), Kaartinen, Harri (author), Lehtomäki, Matti (author), Pyörälä, Jiri (author), Pfeifer, Norbert (author), Holopainen, Markus (author), Wang, Di (author), Wang, J. (author)
The last two decades have witnessed increasing awareness of the potential of terrestrial laser scanning (TLS) in forest applications in both public and commercial sectors, along with tremendous research efforts and progress. It is time to inspect the achievements of and the remaining barriers to TLS-based forest investigations, so further...
journal article 2018
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van Natijne, Adriaan (author)
Built mainly on soft soil, the Netherlands is at high risk for the effects of deformation. Interferometric Synthetic Aperture Radar (InSAR) is successfully used to monitor the deformation trends at millimetre level. Unfortunately the InSAR deformation trends suffer from poor geolocation estimates, limiting the ability to link deformation...
master thesis 2018
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