Browsing Fakultet for informasjonsteknologi og elektroteknikk (IE) by Title
Now showing items 20122-20141 of 20715
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Variation for Piecewise Constant Functions on Triangular Meshes with Applications in Imaging
(Journal article, 2023)We propose a novel discrete concept for the total generalized variation (TGV), which was originally derived to reduce the staircasing effect in classical total variation regularization, in image denoising problems. We ... -
Variational Anisotropic Gradient-Domain Image Processing
(Peer reviewed; Journal article, 2021)Gradient-domain image processing is a technique where, instead of operating directly on the image pixel values, the gradient of the image is computed and processed. The resulting image is obtained by reintegrating the ... -
Variational Approach for Capsule Video Frame Interpolation
(Journal article; Peer reviewed, 2018)Capsule video endoscopy, which uses a wireless camera to visualize the digestive tract, is emerging as an alternative to traditional colonoscopy. Colonoscopy is considered as the gold standard for visualizing the colon and ... -
Variational based smoke removal in laparoscopic images
(Journal article; Peer reviewed, 2018)Background In laparoscopic surgery, image quality can be severely degraded by surgical smoke, which not only introduces errors for the image processing algorithms (used in image guided surgery), but also reduces the ... -
Variational image regularization with Euler's elastica using a discrete gradient scheme
(Journal article; Peer reviewed, 2018)This paper concerns an optimization algorithm for unconstrained nonconvex problems where the objective function has sparse connections between the unknowns. The algorithm is based on applying a dissipation preserving ... -
Variational Inference over Nonstationary Data Streams for Exponential Family Models
(Peer reviewed; Journal article, 2020)In many modern data analysis problems, the available data is not static but, instead, comes in a streaming fashion. Performing Bayesian inference on a data stream is challenging for several reasons. First, it requires ... -
Variational Methods for Coherence Enhancing Image Denoising
(Master thesis, 2017)Image denoising by regularization of coherence enhancing functionals have become increasingly standard due to their structural preservation properties. One example of coherence enhancing regularization is formulated by ... -
Variational Mode Decomposition-Based Threat Classification for Fiber Optic Distributed Acoustic Sensing
(Peer reviewed; Journal article, 2020)In this study, a novel method is proposed to detect and classify the threats for fiber optic distributed acoustic sensing (DAS) systems. In the study, phase-sensitive optical time-domain reflectometry (phase-OTDR) is ... -
Variational multiscale reinforcement learning for discovering reduced order closure models of nonlinear spatiotemporal transport systems
(Peer reviewed; Journal article, 2022)A central challenge in the computational modeling and simulation of a multitude of science applications is to achieve robust and accurate closures for their coarse-grained representations due to underlying highly nonlinear ... -
Variations of Joint Integrated Data Association With Radar and Target-Provided Measurements
(Peer reviewed; Journal article, 2023)Target tracking algorithms are usually based on exteroceptive measurements obtained from sensors placed in the center of some surveillance area. However, information transmitted from surrounding targets will often also be ... -
Varmegjenvinning i fryseanlegg med bruk av ejektorsystem
(Master thesis, 2011)I denne studien er en forsøksrigg konstruert for å undersøke en ejektorkrets med CO2 som kuldemedie. Disse forsøksdataene blir videre benyttet for å beregne energieffektiviseringspotensialet ved å implementere et ejektorsystem ... -
Varmeovergang og strømningsfordeling i varmetekniske komponenter
(Master thesis, 2007)Sammendrag del 1: Miljømessige problemer som følge av utslipp av klimagasser og knapphet på fossile brensler har tvunget bilindustrien til å lete etter alternative måter å operere kjøretøy på. Hydrogen blir betraktet som ... -
Varmereguleringssystem for testing av komponenter i termisk vakuum
(Bachelor thesis, 2022)Orbit NTNU er en teknisk organisasjon som konstruerer kubesatellitter. Før en slik satellitt skytes ut i verdensrommet er det viktig at den blir testet grundig, for å sjekke at den tåler vakuum-tilstanden i rommet og ... -
Varmereguleringssystem for testing av komponenter i termisk vakuum
(Bachelor thesis, 2022)Orbit NTNU er en teknisk organisasjon som konstruerer kubesatellitter. Før en slik satellitt skytes ut i verdensrommet er det viktig at den blir testet grundig, for å sjekke at den tåler vakuum-tilstanden i rommet og ... -
Varmestyring for effektreduksjon
(Bachelor thesis, 2022)Våren 2021 vedtok Olje- og Energi departementet å endre nettleigemodellen basert på NVE sitt forslag. NVE foreslår at nettleiga i større grad må legge til rette for betre utnytting av straumnettet, samt ei rimelegare ... -
The VAROS Synthetic Underwater Data Set: Towards realistic multi-sensor underwater data with ground truth
(Peer reviewed; Journal article, 2021)Underwater visual perception requires being able to deal with bad and rapidly varying illumination and with reduced visibility due to water turbidity. The verification of such algorithms is crucial for safe and efficient ... -
Varying disease-mediated selection at different life-history stages of Atlantic salmon in fresh water
(Journal article; Peer reviewed, 2011)Laboratory studies on associations between disease resistance and susceptibility and major histocompatibility (MH) genes in Atlantic salmon Salmo salar have shown the importance of immunogenetics in understanding the ... -
The vascular occlusion test using multispectral imaging: a validation study
(Peer reviewed; Journal article, 2020)Multispectral imaging (MSI) is a new, non-invasive method to continuously measure oxygenation and microcirculatory perfusion, but has limitedly been validated in healthy volunteers. The present study aimed to validate the ... -
Vascular Pattern Recognition: And its Application in Privacy-Preserving Biometric Online-Banking Systems
(Doktorgradsavhandlinger ved Høgskolen i Gjøvik;2/2012, Doctoral thesis, 2012-10-04)Authentication is a key building block in security systems and many applications to prevent access to information, services, assets or locations for non-authorized persons or processes. Common methods based on knowledge ... -
VCIIGE - Visualization of Critical Infrastructure Interdependencies using Game Engines
(Bachelor thesis, 2009)Utvikling av et verktøy som muliggjør visualisering av kritiske hendelser som følge av gjensidig avhengighet mellom kritiske infrastrukturer. Disse hendelsene omfatter brann med røyk, oversvømmelse og gasseksplosjon. ...