Browsing Fakultet for informasjonsteknologi og elektroteknikk (IE) by Title
Now showing items 20086-20105 of 20353
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Wavefield reconstruction for velocity–stress elastodynamic full-waveform inversion
(Peer reviewed; Journal article, 2020)Gradient computations in full-waveform inversion (FWI) require calculating zero-lag cross-correlations of two wavefields propagating in opposite temporal directions. Lossless media permit accurate and efficient reconstruction ... -
Waveform Analysis of Nonlinear Electric Loads Through Investigation of High and Low Sampling Frequency Data - Exploring the Possibility of Signature Analysis by Comparing Data Provided by an Advanced Measuring System and High Frequency Data Provided by an Oscilloscope
(Master thesis, 2018)This thesis investigates the data provided by the Home Area Network, HAN, port installed in all new Advanced Metering System, AMS, power meters. The data is provided over an M-bus protocol, with a low bandwidth of maximum ... -
Waveform Design for Software Defined Multifunctional RF Systems
(Master thesis, 2017)In this thesis, a study of multifunctional radio frequency (RF) systems implementing radar, communication, and electronic warfare (EW) is presented. Development of low cost and highly adaptable software defined radios ... -
Wavefront aberration correction in medical ultrasound imaging
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:165, Doctoral thesis, 2004)Medisinsk ultralydavbildning er et relativt rimelig verktøy som er i utstrakte bruk på dagens sykehus og tildels også legekontor. En underliggende antakelse ved dagens avbildningsteknikker er at vevet som skal avbildes i ... -
Waveguide asymmetric long-period grating couplers as refractive index sensors
(Peer reviewed; Journal article, 2020)A highly sensitive integrated photonic transducer is designed by utilizing asymmetric long-period gratings on a silicon waveguide. These gratings are formed by periodic perturbation of the waveguide width, leading to ... -
Wavelet based feature extraction and visualization in hyperspectral tissue characterization
(Journal article; Peer reviewed, 2014)Hyperspectral images of tissue contain extensive and complex information relevant for clinical applications. In this work, wavelet decomposition is explored for feature extraction from such data. Wavelet methods are simple ... -
Wavelet based Video coding with optical flow for motion compensation
(Master thesis, 2011)In broadcasting environments intra-only video coding with JPEG 2000 has shownto provide many desired features along with high picture quality. However, thereis no exploitation of temporal redundancy, which can reduce the ... -
Wavelet Techniques in Medical Imaging: Classification of UltraSound Images using the Windowed Scattering Transform
(Master thesis, 2014)In this thesis we will study wavelet techniques for image classification in ultrasound(US) images. The aim is to develop a method for classifying the degree of inflammation in finger-joints.We develop and apply the techniques ... -
Wavelets and irregular time series
(Master thesis, 2012)In this thesis we study time series containing pressure measurements from a three phase flow pipeline at the Ekofisk oil field. The pipeline transports a mixture of oil, water and gas from $15$ wells for approximately ... -
WaveRider - A high-intensity interval training exergame for exercise bikes
(Master thesis, 2022)Statistikk levert av New England Journal of Medicine viser at den norske befolkningen har et høyere nivå av overvekt enn flere europeiske land og de høyeste verdiene i Skandinavia. Studier viser at vi bruker mer tid bak ... -
WaveRider – A high-intensity interval training exergame for exercise bikes
(Master thesis, 2022)Statistikk levert av New England Journal of Medicine viser at den norske befolkningen har et høyere nivå av overvekt enn flere europeiske land og de høyeste verdiene i Skandinavia. Studier viser at vi bruker mer tid bak ... -
Waves in Excitable Media
(Master thesis, 2012)This thesis is dedicated to the study of Barkley's equation, a stiff diffusion-reaction equation describing waves in excitable media. Several numerical solution methods will be derived and studied, range from the simple ... -
The Way Forward: A Practical Guideline for Successful Digital Transformation
(Chapter, 2022)This chapter presents key lessons learned and implications for practice resulting from the analysis of the empirical cases included in this book. We map emerging themes across five layers: unit or project, organization, ... -
Way-predictive instruction cache access in Rocket Chip processor with RISC-V ISA
(Master thesis, 2020)Ytelsen til sentrale prosesseringsenheter er begrenset i energiforbruk i disse dager. Mer effektive prosessorer er nødvendige for å muliggjøre forbedret ytelse. Moderne datasystemer utnytter komplekse prosessorer som ... -
Wayfinding in virtual reality serious game: An exploratory study in the context of user perceived experiences
(Peer reviewed; Journal article, 2021)Extended reality (XR) technologies such as virtual reality (VR) provide a promising alternative for training users through serious games (SGs). VR SGs allow people to train in emergency scenarios and improve their likelihood ... -
Waypoint guidance control for underwater snake robots exposed to ocean currents
(Chapter, 2016)This paper presents a waypoint guidance strategy for underwater snake robots, which is an extension of the straight line path following controllers previously proposed by the authors. The proposed waypoint guidance control ... -
Waypoint guidance control of snake robots
(Journal article; Peer reviewed, 2011)This paper considers path following control of snake robots and has two contributions. The first contribution is a description of how a straight line path following controller previously proposed by the authors can be ... -
Waypoint-Following Guidance Based on Feasibility Algorithms
(Master thesis, 2011)Unmanned vehicles have become more applicable due to extended research and more advanced technology through the last decades. The vehicles are versatile, hence studying ocean floor and reconnaissance and surveillance are ... -
Weakly Supervised Framework for Aspect-Based Sentiment Analysis on Students’ Reviews of MOOCs
(Peer reviewed; Journal article, 2020)Students’ feedback is an effective mechanism that provides valuable insights about teachinglearning process. Handling opinions of students expressed in reviews is a quite labour-intensive and tedious task as it is typically ... -
Weakly Supervised Framework for Aspect-Based Sentiment Analysis on Students’ Reviews of MOOCs
(Peer reviewed; Journal article, 2020)Students' feedback is an effective mechanism that provides valuable insights about teaching-learning process. Handling opinions of students expressed in reviews is a quite labour-intensive and tedious task as it is typically ...