Searched for: subject%3A%22navigation%22
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Verheyen, Jan (author)
Insects have — over millions of years of evolution — perfected many of the systems that roboticists aim to achieve; they can swiftly and robustly navigate through different environments under various conditions while at the same time being highly energy efficient. To reach this level of performance and efficiency one might want to look at and take...
master thesis 2022
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van Oorschot, Marijn (author)
Spacecraft navigation and control is difficult in deep space operations. Especially around asteroids, the irregular gravity field increases the difficulty of estimating the spacecraft trajectory. Autonomous navigation can increase the safety and accuracy for orbit proximity operations. Furthermore, it eliminates the need for continuous...
master thesis 2022
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Triantafyllou, Giorgos (author)
Nowadays, humans rely in technology more and more when it comes to navigation and localisation and in many aspects of life as well. While most concepts related to localisation and navigation of outdoors environments are already well derived from various researches and softwares, the indoor environment remains a significantly unexplored area....
master thesis 2022
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Tan, Ee Xuan (author)
Surgical navigation is a tool that surgeons rely on everyday to perform accurate surgeries all over the world. However, this technology requires good hand-eye coordination and a high level of concentration. HoloNav is a project that inquires to see if using the HoloLens and augmented reality can replace the current surgical navigation methods....
bachelor thesis 2022
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Omar Mohamed Hosny Mohamed Hussein, Omar (author)
Patient and instrument tracking are fundamental parts of surgical navigation systems. Traditional surgical navigation systems rely on stationary cameras for tracking and stationary screens for presenting information. An increased mental load is exerted by surgeons as they switch focus between the surgical site and the presented data. By...
bachelor thesis 2022
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Weyns, Maarten (author)
In order to be able to use the Microsoft HoloLens for surgical navigation purposes, performing good patient alignment is of utmost importance. This paper will discuss how this patient alignment can be done using different point cloud registration algorithms.<br/>A lot of research is being conducted on point cloud registration algorithms. However...
bachelor thesis 2022
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Meijers, Willem (author)
The autonomy of mobile robots has been greatly improved in recent decades. For these robots, the field of search and rescue is of particular interest. This thesis introduces a new method to let a mobile robot (Spot by Boston Dynamics) explore and search for victims in unknown environments. Existing methods include coverage, which aims to fully...
master thesis 2022
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Alattas, A.F.M. (author)
Indoor navigation applications are actively investigated and developed due to their capacity to provide users with essential information in the modern extensive building complexes. Therefore, many researchers have developed a range of indoor navigation applications, which have focused on aspects such as localization, indoor route computation,...
doctoral thesis 2022
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den Daas, Jelle (author)
Stochastic Dynamic Programming (SDP) has shown promising results for sequential decision problems of the route optimisation for an Electric Vehicle (EV) with the presence of stochastic variables in the travel cost. However, in studies, the optimisation problem formulation for EVs has been lacking in detail. For example, possible waiting times at...
master thesis 2022
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van der Heijden, Lars (author)
Missions to small bodies are increasingly gaining interest as they might hold the secrets to our solar system’s origin while some are also posing a threat to life on Earth. The small size and irregular shape result in complex dynamics complicating the close-proximity operations. Furthermore, due to the long round-trip time communication delays...
master thesis 2022
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de Geer, Fleur (author)
In patients with oral cavity cancer invading the mandible, a segmental bone resection is performed and the original contour of the mandible is reconstructed with a free fibula flap. Virtual surgical planning is performed prior to surgery to determine the locations and orientations of the osteotomy planes on the mandible and fibula. Currently,...
master thesis 2022
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Psychas, D.V. (author)
Precise Point Positioning (PPP) is a Global Navigation Satellite Systems (GNSS) modelling and processing method that provides single-receiver users with high positioning accuracy anywhere on the globe, without the explicit dependence on reference receivers. The realization of PPP is based on undifferenced code and phase measurements, a priori...
doctoral thesis 2022
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Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
In recent years, there is a growing interest in small satellites for deep space exploration. The current approach for planetary navigation is based on ground-based radiometric tracking. A new era of low-cost small satellites for space exploration will require autonomous deep space navigation. This will decrease the reliance on ground-based...
review 2022
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Colling, A.P. (author), Hekkenberg, R.G. (author), van Hassel, E.B.H.J. (author), Vidić, M. (author), Bačkalov, I. (author)
Objective: This study investigates the implementation of the waterborne platooning transport concept in two of the largest European inland navigation corridors, the Rhine and the Danube region. Each region has different geo-economic and environmental features. These features are compared, and their effects on implementing a waterborne...
journal article 2022
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Wahlstrom, Johan (author), Kok, M. (author)
The last years have seen a growing body of literature on data-driven pedestrian inertial navigation. However, despite this, it is still unclear how to efficiently combine classical models and other a priori information with existing machine learning frameworks. In this paper, we first categorize existing approaches to data-driven pedestrian...
journal article 2022
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Benmahdjoub, Mohamed (author), Niessen, W.J. (author), Wolvius, Eppo B. (author), van Walsum, T. (author)
Augmented reality (AR) permits the visualization of pre-operative data in the surgical field of view of the surgeon. This requires the alignment of the AR device’s coordinate system with the used navigation/tracking system. We propose a multimodal marker approach to align an AR device with a tracking system: in our implementation, an...
journal article 2022
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Thabit, Abdullah (author), Benmahdjoub, Mohamed (author), van Veelen, Marie Lise C. (author), Niessen, W.J. (author), Wolvius, Eppo B. (author), van Walsum, T. (author)
Purpose: In minimally invasive spring-assisted craniectomy, surgeons plan the surgery by manually locating the cranial sutures. However, this approach is prone to error. Augmented reality (AR) could be used to visualize the cranial sutures and assist in the surgery planning. The purpose of our work is to develop an AR-based system to...
journal article 2022
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de Geer, A. F. (author), van Alphen, M. J.A. (author), Zuur, C. L. (author), Loeve, A.J. (author), van Veen, R. L.P. (author), Karakullukcu, M. B. (author)
Purpose: To utilize navigated mandibular (reconstructive) surgery, accurate registration of the preoperative CT scan with the actual patient in the operating room (OR) is required. In this phantom study, the feasibility of a noninvasive hybrid registration method is assessed. This method consists of a point registration with anatomic...
journal article 2022
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Berka, Jakub (author), Balata, Jan (author), Jonker, C.M. (author), Mikovec, Zdenek (author), van Riemsdijk, M. Birna (author), Tielman, M.L. (author)
Disabled people can benefit greatly from assistive digital technologies. However, this increased human-machine symbiosis makes it important that systems are personalized and transparent to users. Existing work often uses data-oriented approaches. However, these approaches lack transparency and make it hard to influence the system’s behavior. In...
journal article 2022
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Psychas, D.V. (author), Khodabandeh, Amir (author), Teunissen, P.J.G. (author)
The corrections needed to realize integer ambiguity resolution-enabled precise point positioning (PPP-RTK) at a single-receiver user are often treated as if they are deterministic quantities. The present contribution aims to study and analyze the effect the neglected uncertainty of these corrections, which are subject to time delay, has on...
journal article 2022
Searched for: subject%3A%22navigation%22
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