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Unsupervised Roofline Extraction from True Orthophotos for LoD2 Building Model Reconstruction

Gao, W. (author), Peters, R.Y. (author), Stoter, J.E. (author)

This paper discusses the reconstruction of LoD2 building models from 2D and 3D data for large-scale urban environments. Traditional methods involve the use of LiDAR point clouds, but due to high costs and long intervals associated with acquiring such data for rapidly developing areas, researchers have started exploring the use of point clouds...

conference paper 2024

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Scenario-Game ADMM: A Parallelized Scenario-Based Solver for Stochastic Noncooperative Games

Li, Jingqi (author), Chiu, Chih Yuan (author), Peters, L. (author), Palafox, Fernando (author), Karabag, Mustafa (author), Alonso-Mora, J. (author), Sojoudi, Somayeh (author), Tomlin, Claire (author), Fridovich-Keil, David (author)

Decision-making in multi-player games can be extremely challenging, particularly under uncertainty. In this work, we propose a new sample-based approximation to a class of stochastic, general-sum, pure Nash games, where each player has an expected-value objective and a set of chance constraints. This new approximation scheme inherits the...

conference paper 2023

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Learning Mixed Strategies in Trajectory Games

Peters, L. (author), Fridovich-Keil, David (author), Ferranti, L. (author), Stachniss, Cyrill (author), Alonso-Mora, J. (author), Laine, Forrest (author)

In multi-agent settings, game theory is a natural framework for describing the strategic interactions of agents whose objectives depend upon one another’s behavior. Trajectory games capture these complex effects by design. In competitive settings, this makes them a more faithful interaction model than traditional “predict then plan” approaches....

conference paper 2022

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Rule-based isobath generalisation using the Triangle Region Graph: uniting soundings, isobaths and constraints through a navigational surface

Opstal, Willem van (author), Meijers, B.M. (author), Peters, R.Y. (author)

Navigational charts play a vital role in a ship's safety while navigating the seas, rivers or lakes. With most of the features and obstructions being out of sight -below sea-level - these charts are more critical than e.g. topographic maps. For routing but also positioning, depth information is a key aspect on these charts. This depth...

conference paper 2020

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Modelling social learning during participatory modeling processes

Peters, Nourian (author), Nikolic, I. (author), de Vries, G. (author)

conference paper 2020

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Zinc Reduction/Vaporisation Behaviour from Metallurgical Wastes

Kerry, T.J. (author), Peters, Alexander (author), Georgakopoulos, E. (author), Hosseini, A. (author), Offerman, S.E. (author), Yang, Y. (author)

The steelmaking industry produces large quantities of zinc-bearing wastes of varying forms that cannot be treated through integrated steelmaking processes. Simultaneously, by-products of the zinc industry containing great amounts of iron and zinc are stored or landfilled. The amount of zinc in these materials is generally below that which is...

conference paper 2020

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Blind driving by means of the track angle error

Bazilinskyy, P. (author), Bijker, Laurens (author), Dielissen, Tim (author), French, Shin (author), Mooijman, Tom (author), Peters, Luka (author), Happee, R. (author), Dodou, D. (author), de Winter, J.C.F. (author)

This study is the third iteration in a series of studies aimed to develop a system that allows driving blindfolded. We used a sonification approach, where the predicted angular error of the car 2 seconds into the future was translated into spatialized beeping sounds. In a driving simulator experiment, we tested with 20 participants whether a...

conference paper 2019

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Target reliability indices for quay walls, jetties, and flexible dolphins

Roubos, A.A. (author), Peters, D.J. (author), Steenbergen, Raphael D.J.M. (author)

Structural codes rely on generalised target reliability indices, which are mainly derived for buildings. It is unclear, however, whether these indices are applicable to the specific risk-profile of quay walls, jetties, and flexible dolphins. In this study, target reliability indices for marine structures were derived from various risk...

conference paper 2019

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Characterizing temporal bipartite networks - Sequential- Versus cross-tasking

Peters, Lucas J.J.M. (author), Cai, J. (author), Wang, H. (author)

Temporal bipartite networks that describe how users interact with tasks or items over time have recently become available. Such temporal information allows us to explore user behavior in-depth. We propose two metrics, the relative switch frequency and distraction in time to measure a user’s sequential-tasking level, i.e. to what extent a user...

conference paper 2019

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Photonic hybrid assembly through flexible waveguides

Wörhoff, Kerstin (author), Prak, Albert (author), Postma, F. (author), Leinse, A (author), Wu, K. (author), Peters, T.J. (author), Tichem, M. (author), Amaning-Appiah, B. (author), Renukappa, V. (author), Vollrath, G. (author), Balcells-Ventura, J. (author), Uhlig, P. (author), Seyfried, M. (author), Rose, D. (author), Santos, Raquel (author), Leijtens, XJM (author), Flintham, B. (author), Wale, M. (author), Robbins, D. (author)

Fully automated, high precision, cost-effective assembly technology for photonic packages remains one of the main challenges in photonic component manufacturing. Next to the cost aspect the most demanding assembly task for multiport photonic integrated circuits (PICs) is the high-precision (±0.1 μm) alignment and fixing required for optical I...

conference paper 2016

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On-chip positionable photonic waveguides for chip-to-chip optical interconnects

Peters, T.J. (author), Tichem, M. (author)

This paper reports on the progress related to a multichannel photonic alignment concept, aiming for sub-micrometer precision in the alignment of the waveguides of two photonic integrated circuits (PICs). The concept consists of two steps: chip-to-chip positioning and chip bonding provide a coarse alignment after which waveguide-to-waveguide...

conference paper 2016

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Bimorph actuators in thick SiO₂ for photonic alignment

Wu, K. (author), Peters, T.J. (author), Tichem, M. (author), Postma, Ferry (author), Prak, Albert (author), Wörhoff, Kerstin (author), Leinse, Arne (author)

This paper proposes and tests a design of electro-thermal bimorph actuators for alignment of flexible photonic waveguides fabricated in 16 μm thick SiO². The actuators are for use in a novel alignment concept for multi-port photonic integrated circuits (PICs), in which the fine alignment is taken care of by positioning of suspended...

conference paper 2016

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Mechanically flexible waveguide arrays for optical chip-to-chip coupling

Peters, T.J. (author), Tichem, M. (author)

conference paper 2016

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Visibility Analysis in a Point Cloud Based on the Medial Axis Transform

Peters, R. (author), Ledoux, H. (author), Biljecki, F. (author)

Visibility analysis is an important application of 3D GIS data. Current approaches require 3D city models that are often derived from detailed aerial point clouds. We present an approach to visibility analysis that does not require a city model but works directly on the point cloud. Our approach is based on the medial axis transform, which...

conference paper 2015

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Feature-aware LiDAR point cloud simplification (POSTER)

Peters, R.Y. (author)

conference paper 2014

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Modifying Resonance Modes of Dissipative Structures using Magnitude and Phase Information

Peters, H.J. (author), Tiso, P. (author), Goosen, J.F.L. (author), Van Keulen, A. (author)

Several Flapping Wing Micro Air Vehicle (FWMAV) designs exploit structural resonance to decrease power consumption. Practical use of most resonating structures requires temporary modifications to the resonance mode (i.e., the eigensolution). This paper presents a systematic design approach to modify non-proportionally damped resonance modes in a...

conference paper 2014

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Approximating the Medial Axis Transform of LiDAR point clouds (POSTER)

Peters, R.Y. (author)

conference paper 2014

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Suspended photonic waveguide arrays for submicrometer alignment

Peters, T.J. (author), Tichem, M. (author), Staufer, U. (author)

This paper presents a new alignment concept for the alignment of multichannel photonic intergrated circuits (PICs) using flexible photonic waveguides on one of the PICs that are positionable by integrated micro electro mechanical system (MEMS) actuators. The concept aims for high precision and high degree of assembly process automation. The...

conference paper 2014

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Chlorine cell disinfection determination with flow cell cytometry and plate count (poster)

Peters, M.C.F.M. (author), Keuten, M.G.A. (author), De Kreuk, M.K. (author), Van Loosdrecht, M.C.M. (author), Rietveld, L.C. (author)

Chlorine is used for disinfection in different water systems. This research focuses on chlorine disinfection in swimming pool water. In the Netherlands, free available chlorine concentrations in swimming pools are limited between 0.5-1.5 mg/L, which is based on a 4-log removal of Pseudomonas aeruginosa within 30 seconds. Another indicator...

conference paper 2013

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Quantification of continual anthropogenic pollutant release in swimming pools (poster)

Peters, M.C.F.M. (author), Keuten, M.G.A. (author), Daanen, H. (author), De Kreuk, M.K. (author), Rietveld, L.C. (author), Van Loosdrecht, M.C.M. (author), Dijk, H. (author)

The amount of pollutants brought into the swimming pool water by swimmers is called anthropogenic pollutant release. The continual pollutant release is the amount of pollutants which is released during the submerged swimming period. The actual level of the continual pollutant release has not been studied individually up till now.

conference paper 2013