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 12 of 12 for “"Time navigation"”.
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Multimodal Data Integration for Real-Time Indoor Navigation Using a Smartphone
<p>We propose an integrated solution of indoor navigation using a smartphone, especially for assisting people with special needs, such as the blind and visually impaired (BVI) individuals. The system consists of three components: hybrid modeling, real-time navigation, and client-server …
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Enabling path planning and threat avoidance with wireless sensor networks
Wireless sensor networks can provide real time navigation instructions to robots or people attempting to travel in hazardous environments. This thesis presents the design, analysis, and implementation of a distributed system providing path planning and threat avoidance capability to mobile users. …
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Autonomous navigation of distributed spacecraft using intersatellite laser communications
Autonomous navigation refers to satellites performing on-board, real-time navigation without external input. As satellite systems evolve into more distributed architectures, autonomous navigation can help mitigate challenges in ground operations, such as determining and disseminating orbit …
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A laser-guided, autonomous automated guided vehicle
… of a laser-based positioning system as a primary navigation method. The system developed for this research consisted of an automated guided vehicle which navigated solely with the use of the laser-based positioning system in real-time. To date, there are no systems which can navigate a pre-defined …
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Image Retrieval using Landmark Indexing for Indoor Navigation
A novel approach is proposed for real-time retrieval of images from a large database of overlapping images of an indoor environment. The procedure extracts visual features from images using selected computer vision techniques, and processes the extracted features to create a reduced list of …
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Object-centric temporal navigation for dynamic information visualizations.
We introduce object-centric temporal navigation for time-varying information visualizations. In our approach, navigation through time is controlled by interacting directly with any data item, enabling simultaneous exploration of the time dimension while focusing on the changing item. Subtle …
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Managing radiotherapy treatment trade-offs using multi-criteria optimisation and data envelopment analysis
… for treatment delivery constraints. Finally, a navigation method based on solving interactive multi-objective optimisation for a discrete set of plans is developed. The method sets the aspiration values for criteria as soft constraints, thus allowing the planner to freely express his/her …
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Software for the Control and Analysis of Public Transport Systems
… and provide potential passengers with real-time transit information in an easy to understand and accessible way. The system also provides the transit operator with tools for monitoring, analysing and measuring their service. In order to reduce the cost of the communications and tracking …
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Robust motion planning for autonomous tracked vehicles in deformable terrain
… the uncertain factors in advance of the real-time navigation. The primary contribution of this thesis is to present a robust optimal global planner for autonomous tracked vehicles operating in off-road terrain with uncertain slip. In order to achieve this goal, three tasks must be completed. …
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Identifying Trade-offs Associated with Cross-platform Mobile Development Tools
… measurements of three defined metrics: launch time, navigation time and size of the installer. The second evaluation component investigated trade-offs related to resource use and performance by implementing a set of resource-intensive tests to measure relevant metrics. The third and final …
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Organization of spatiotemporal information and relational memory in the hippocampus
… memory in organizing episodic memory during navigation and reconstruction. Navigation is a critical component in most organisms’ survival. Reconstruction, on the other hand, provides an incredibly rich method of evaluating the precise information remembered by an individual after attempting …
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Optical Orbit Tracking and Estimation
… for which it was assigned. Tests with varying times between measurements were first run to determine if a discrete-time Kalman Filter is a viable method to correct the error created by the state estimator, where coordinates were fed directly into the filter with no images. These tests showed …