Browsing Institutt for teknisk kybernetikk by Title
Now showing items 2466-2485 of 3790
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Object and text recognition from engineering drawings
(Master thesis, 2023)Denne avhandlingen beskriver hvordan vi bruker maskinlæring til å gjenkjenne objekter i Rør og instrument diagrammer. Vi har bygget opp et relevant datasett, behandlet dataene, og utviklet et verktøy for visualisering. ... -
Object Classification in Thermal Images using Convolutional Neural Networks for Search and Rescue Missions with Unmanned Aerial Systems
(Journal article; Peer reviewed, 2018)In recent years, the use of Unmanned Aerial Systems (UAS) has become commonplace in a wide variety of tasks due to their relatively low cost and ease of operation. In this paper, we explore the use of UAS in maritime Search ... -
Object detection and instance segmentation of planktonic organisms using Mask R-CNN for real-time in-situ image processing.
(Master thesis, 2020)Denne oppgaven er en undersøkelse av nylig presenterte state-of-the-art metoder og nettverksarkitekturer for bildesegmentering[61, 38, 37, 78, 49] ved bruk av Facebook Artificial Intelligence Research (FAIR) sitt software ... -
Object Detection and Tracking Based on Optical Flow in Unmanned Aerial Vehicles
(Master thesis, 2015)In recent years the Unmanned Aerial Vehicle (UAV) community has discovered the enormous amount of information that can be extracted from a video camera. It can be used for collision avoidance, navigation, velocity estimation, ... -
Object Detection and Tracking With UAVs: A Framework for UAV Object Detection and Tracking Using a Thermal Imaging Camera
(Doctoral theses at NTNU;2017:1, Doctoral thesis, 2017)In recent years there has been a drastic increase in the commercial availability of small UAVs for civil and commercial applications. These applications includes, but are not limited to, inspections of structures, search ... -
Object Detection in Maritime Environments
(Master thesis, 2019)Maskinlæringsmetoder basert pa konvolusjonelle nevrale nettverk (CNNs) har i senere år tatt over som den dominerende teknikken innenfor objektdeteksjon. Store forskningsressurser blir brukt på å utvikle dette feltet videre, ... -
Object Detection in Point Clouds for Augmented Reality
(Master thesis, 2019)Denne rapporten dekker arbeid på et 3D object detection rammeverk basert på Vote3Deep arkitekturen. Nevrale nettverk basert på dette rammeverket er trent opp til å detektere objekter i genererte punktskyer. Dette gjøres ... -
Object Detection, Recognition and Tracking from UAVs using a Thermal Camera
(Peer reviewed; Journal article, 2020)In this paper a multiple object detection, recognition, and tracking system for unmanned aerial vehicles (UAVs) has been studied. The system can be implemented on any UAVs platform, with the main requirement being that the ... -
Object Tracking for Fine-Tuning of Robot Positions
(Master thesis, 2009)In many complex applications an accurate model of the plant is not known. Consequently, complementary methods are needed to automatically achieve accurate dynamical positioning of a robot in relation to its surroundings. ... -
Observer and IMU-based Detection of Faults in Position Reference Systems and Gyrocompasses with Dual Redundancy in Dynamic Positioning
(Journal article; Peer reviewed, 2014)Faults in position reference systems and vessel sensors pose a serious hazard during dynamic positioning, and vessel drive-offs because of erroneous data may have dire consequences. The classification society standards ... -
Observer Backstepping Control for Variable Speed Wind Turbine
(Chapter; Peer reviewed, 2013)This paper presents an observer backstepping controller as feasible solution to variable speed control of wind turbines to maximize wind power capture when operating between cut-in and rated wind speeds. The wind turbine ... -
Observer based path following for underactuated marine vessels in the presence of ocean currents: A global approach
(Journal article; Peer reviewed, 2019)In this paper a solution to the problem of following a curved path in the presence of a constant unknown ocean current disturbance is presented. We introduce a path variable that represents the curvilinear abscissa on the ... -
Observer Based Path Following for Underactuated Marine Vessels in the Presence of Ocean Currents: A Local Approach
(Journal article; Peer reviewed, 2017)In this article a solution to the problem of following a curved path in the presence of a constant unknown ocean current disturbance is presented. The path is parametrised by a path variable that is used to propagate a ... -
Observer Based Sliding Mode Attitude Control: Theoretical and Experimental Results
(Journal article; Peer reviewed, 2011)In this paper we present the design of a sliding mode controller for attitude control of spacecraft actuated by three orthogonal reaction wheels. The equilibrium of the closed loop system is proved to be asymptotically ... -
Observer Design for a Class of Semilinear Hyperbolic PDEs with Distributed Sensing and Parametric Uncertainties
(Peer reviewed; Journal article, 2022)We study a class of heterodirectional semilinear hyperbolic partial differential equations, where the distributed state vector is partially measured. An observer estimating the unmeasured part of the state vector is designed. ... -
Observer Design For Fault-Tolerant Dynamic Positioning Using MEMS Inertial Sensors
(Doctoral theses at NTNU;2017:86, Doctoral thesis, 2017)The contribution of this disseration is threefold. First, it provides insight into the use of a certain type of nonlinear observers (NLO) for platform independent position, velocity and attitude estimation, exemplified by ... -
Observer Design for Mechanical Systems described by Semilinear Partial Differential Equations
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:86, Doctoral thesis, 2004)This doctoral thesis presents new analysis tool for observer design of flexible mechanical systems described by partial differential equations (PDEs). This work focuses especially on designing of natural observers. ... -
Observer design for underwater vehicles with position and angle measurement
(Journal article, 2006)In this paper we propose a new observer system for underwater vehicles. The main design objective behind this strategy is to reduce the destabilizing effect of the Coriolis and centripetal forces and moments in the observer. ... -
Obstacle Detection and Avoidance in a 3D Environment
(Master thesis, 2022)Målet med denne masteroppgaven var å utvikle en metode for deteksjon og kollisjonsunngåelse av hindringer som f.eks. lave åpninger, hull eller små gjenstander på gulvet. En robot basert på nRF52840 DK ble nylig ferdigstilt, ... -
Obstacle detection and avoidance system for USV FishOtter
(Master thesis, 2022)Denne avhandlingen har som målsetning å utvikle og implementere en algoritme for kollisjonsunngåelse for et lite ubemannet marint fartøy (USV). Fartøyet brukes i et prosjekt ved Norges Teknisk-Naturvitenskapelige Universitet ...