Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"map-matching"”.
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Artificial Neural Networks and Map-Matching for GPS Navigation
… Generally travel on road or footpath, map-matching algorithms can be used to correlate the computed system location with a digital map network. Map Matched GPS (MMGPS) is a test-bed simulator for researching algorithms and techniques to reduce the error in position provided by a low …
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Predicting Traffic Speed and Recommending Optimal Routes using GPS Data: A Smart Navigation System for Commuters
… The framework introduces a proposed solution for map matching, which enhances the accuracy of input data by removing noise, eliminating redundant (repetitive or unnecessary data) points, and ensuring precise alignment with the digital road map. This processed data is then used for traffic speed …
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Autonomous Robotic Strategies for Urban Search and Rescue
… for urban search and rescue (USAR) which are map-based semi-autonomous robot navigation and fully-autonomous robotic search, tracking, localization and mapping (STLAM) using a team of robots. Since the prerequisite for these solutions is accurate robot localization in the environment, this …
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Designing and evaluating a UI for helping users uncover and create missing road segments on a Geowiki
Incomplete map data is a persistent problem in map applications, especially those that provide route-finding services. In order to solve this problem, map matching algorithms that take advantage of GPS traces to detect missing map data are emerging and developing quickly in recent years. A number …
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Using GPS data in route choice analysis : case study in Boston
… route choice analysis, from GPS data processing, map matching to the generation of route choice sets. Besides, the Path-Size logit model is implemented to address the modeling issue. In this thesis, I develop a new effective method, which I called Point-Based Local Search Map Matching, to match …
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Automatic matching of features in Synthetic Aperture Radar data to digital map data.
… tools for image interpretation. Where available, map data provides a valuable aid for visual interpretation and it should aid automatic interpretation. Automatic map based interpretation will be heavily dependent on methods for matching image and map features, both for defining the initial …
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GPS augmentation using digital spatial data
… include buildings and vegetation, and digital maps, have only been made widely available in recent years.<br/><br/>This thesis will report on a number of experiments that used spatial data of various complexity and accuracy for enhancing GPS performance. These experiments include height aiding …
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Multi-rate Sensor Fusion for GPS Navigation Using Kalman Filtering
… sensor fusion techniques, and a unique map-matching algorithm.
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Improving the robustness of GPS direct position estimation
… estimated from available three-dimensional (3D) maps. We conducted experiments in front of the 50~m by 40~m wind tunnel located at NASA's Ames Research Center in Mountain View, California, utilizing the surface of the wind tunnel as a reflector of GPS signals. We demonstrated through our …
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Understanding human mobility patterns from digital traces
… to incorporate mobile phone records and digital map point of interests into commuting flow prediction models such as the gravity model and the radiation model. An extension to the radiation model is proposed to adjust to the different degrees of homogeneity of opportunities when the scale of the …
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Graphical SLAM for urban UAV navigation
… thesis, we apply a Simultaneous Localization and Mapping (SLAM) approach to fuse GPS pseudorange measurements with LiDAR point clouds and 3D building footprint data of the existing region, for UAV trajectory estimation and environment mapping. Our approach consists of three main aspects: graphical …
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Wegpunktnavigation für Fußgänger auf Basis von standardisierten Geodateninfrastrukturen
… aus. Als Lösungsansätze werden Verfahren, wie Map Matching, Schwellwertverfahren oder die Projektion eines Lotpunktes vorgestellt. Abschließend wird basierend auf dem NICCIMON-Framework eine konkrete Navigationsanwendung entworfen, die eine Auswahl geeigneter Lösungsansätze verwendet. Bei der …
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Crowdsourcing traffic data for travel time estimation
… and a server architecture. We also develop map-matching method. More importantly, we present prediction methods using machine learning techniques such as support vector regression.;Machine learning provides an alternative to traditional statistical method such as using averaged historic data …
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Data-Driven Routing for Autonomous Trucks: Learning from Human Behavior with Context Awareness and Privacy Protection
… pursues three technical objectives: (i) accurate map matching under sparse GPS sampling, (ii) truck-specific traffic prediction under extreme weather, and (iii) privacy-preserving, context-aware route planning informed by human driving behavior. The first objective introduces the Multi-Intention …
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Leveraging spatial relationships and visualization to improve public transit performance analysis
… real transit planning challenges. First, a map matching algorithm is described that facilitates the identification and classification of corridors served by multiple bus routes. A framework is then established for systematically aggregating different types of performance metrics across …
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Analisi comportamentale della scelta del percorso attraverso l'utilizzo di nuove tecnologie di acquisizione delle informazioni
… position points) was then treated with map-matching techniques, through which it was possible to associate each “GPS point” to a link of the network, thus creating the observed route database. The first objective of the thesis is to understand which are the characteristics of the data …