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Perceived Translucency at Different Spatial Scales in Color and Grayscale Images
(Peer reviewed; Journal article, 2023)Many objects and materials in our daily lives are translucent. Translucency is an important attribute of appearance together with color, gloss, and texture. However, it remains largely unexplored whether and how these ... -
Perceiving the Narrative Style for Fake News Detection Using Deep Learning
(Chapter, 2021)Existing deep-learning-based features have shown strong enough results (more than 90% accuracy) if a large amount of annotated data is available. However, in reality, data annotation is labor-intensive and expensive. This ... -
Perception for an Autonomous Racecar
(Master thesis, 2018)Autonomous vehicles are revolutionizing the car industry. Being able to produce cars that can drive on their own in a safe manner is going to be very important for car manufacturers in the future. Formula Student, the ... -
Perceptual Evaluation of Color Gamut Mapping Algorithms
(Journal article; Peer reviewed, 2008)The recommendation of the CIE has been followed as closely as possible to evaluate the accuracy of five color gamut mapping algorithms (GMAs)—two nonspatial and three spatial algorithms—by psychophysical experiments with ... -
Perceptual Navigation in Absorption-Scattering Space
(Peer reviewed; Journal article, 2021)Translucency optically results from subsurface light transport and plays a considerable role in how objects and materials appear. Absorption and scattering coefficients parametrize the distance a photon travels inside the ... -
Perceptually validated analytical BRDFs parameters remapping
(Chapter, 2018)The need to manually match the appearance of a material in two or more different rendering tools is common in digital 3D product design, due to the wide range of tools and material models commonly used, and a lack of ... -
Perceptually Validated Cross-Renderer Analytical BRDF Parameter Remapping
(Journal article; Peer reviewed, 2018)Material appearance of rendered objects depends on the underlying BRDF implementation used by rendering software packages. A lack of standards to exchange material parameters and data (between tools) means that artists in ... -
Performance Analysis of Cache-Aware Multicore Parallelization with Application to Optimization Theory
(Master thesis, 2012)In previous work, a cache-aware sparse matrix multiplication for linear programming interior point methods was proposed. The serial implementations achieved speedups ranging from 1.2 to 108.0 over the implementation in ... -
Performance analysis of domain geometry optimizations in an LBM proxy application
(Master thesis, 2023)Lattice-Boltzmann Metoden (LBM) er en metode for å simulere væskestrøm spesielt egnet for å simulere flyt i komplekse geometrier. Moderne Høy-Ytelses Databehandlingsplattformer legger til rette for store og nøyaktige ... -
Performance Analysis of Vehicle Detection Techniques: A Concise Survey
(Chapter, 2018)Attention towards Intelligent Transportation System (ITS) has increased manifold especially due to prevailing security situation in the past decade. An integral part of ITS is video-based surveillance systems extracting ... -
Performance evaluation of no-reference image quality metrics for face biometric images
(Journal article; Peer reviewed, 2018)The accuracy of face recognition systems is significantly affected by the quality of face sample images. The recent established standardization proposed several important aspects for the assessment of face sample quality. ... -
Performance Evaluation of No-Reference Image Quality Metrics for Visible Wavelength Iris Biometric Images
(Chapter, 2018)Image quality assessment plays an important role in iris recognition systems because the system performance is affected by low quality iris images. With the development of electronic color imaging, there are more and more ... -
Performance impact of porous media characteristics for lattice Boltzmann method
(Master thesis, 2020)Ettersom regnekraft er en begrenset ressurts er det et vedvarende behov for å forbedre ytelsen til både nye og eksisterende programmer. I denne oppgaven benytter vi metoder fra ytelsesmodellering og en stedfortreder-applikasjon ... -
Performance Modeling of a Finite Volume Method for the Shallow Water Equations
(Master thesis, 2022)Oppgaven omhandler en proxy-applikasjon for å beregne grunnvannsligningene gjennom den endelige volummetoden. Vannoverflaten er diskretisert gjennom en triangulering, der kystlinjen til Mehamn brukes til alle tester. ... -
Performance Modeling of a Load-Balanced FDM Wave Equation Solver on Heterogeneous Clusters
(Master thesis, 2023)I denne avhandlingen utvikles en skalerbar implementasjon av endelig differansemetode for å løse den todimensjonale bølgelikningen. Vi utvikler algoritmer som benytter lastbalansering i flere lag for å sikre at ... -
Performance Modeling of Adaptive Mesh Refinement for the Shallow Water Equations
(Master thesis, 2020)I denne avhandlinga studerer me ytings- og skalerings-karakteristikkar ved adaptivt raffinerte endelege differansar-løysingar av gruntvasslikningane. Gruntvasslikningane er eit sett med likningar som blir nytta til å ... -
Performance modeling of CFD application scalability using co-design methods
(Master thesis, 2018)In this thesis, we investigate the performance and scalability of two CFD proxy applications, based on the Lattice Boltzmann Method (LBM) and Smoothed Particle Hydrodynamics (SPH). Two variants of LBM, workshare and task, ... -
Performance Modeling of Finite Difference Shallow Water Equation Solvers with Variable Domain Geometry
(Master thesis, 2021)I denne oppgaven undersøker vi metoder som kan brukes til å redusere ubalansert beregningslast, som kan oppstå når man dekomponerer et todimensjonalt domene av endelige differanser med ujevn beregningskostnad. I dette ... -
Performance Modeling of Heterogeneous Systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:344, Doctoral thesis, 2012)As the complexity of parallel computers grows, constraints posed by the construction of larger systems require both greater, and increasingly non-linear, parameter sets to model their behavior realistically. These heterogeneous ... -
Performance modeling of subdomain discretization techniques for SPH proxy applications
(Master thesis, 2021)In this study we investigate the performance of two cell-grid discretization schemes for a smoothed-particle hydrodynamics (SPH) proxy application that is applied to the two-dimensional dam-break problem. The Cell+Table ...