• 3D reconstruction of gastrointestinal regions using shape-from-focus 

      Ahmad, Bilal; Farup, Ivar; Floor, Pål Anders (Peer reviewed; Journal article, 2023)
      3D shape reconstruction from images is an active topic in computer vision. Shape-from-Focus (SFF) is an important approach which requires image stack in a focus controlled manner to infer the 3D shape. In this article, 3D ...
    • 3D Reconstruction of Gastrointestinal Regions Using Single-View Methods 

      Ahmad, Bilal; Floor, Pål Anders; Farup, Ivar; Hovde, Øistein (Peer reviewed; Journal article, 2023)
      Capsule endoscopy is about to become an alternative to traditional colonoscopy. One uses a wireless camera to visualize the gastrointestinal (GI) tract. A 3D model based on image sequences obtained from wireless capsule ...
    • 3D Reconstruction of GI Regions from Single Images 

      Ahmad, Bilal; Floor, Pål Anders; Farup, Ivar; Kresović, Milan (Peer reviewed; Journal article, 2022)
      3D shape reconstruction from images is one of the problem under investigation in the field of computer vision. Shape-from-shading (SfS) is an important approach which requires the reflectance properties of surface and light ...
    • 3D Reconstruction of the Human Colon from Capsule Endoscope Video 

      Floor, Pål Anders; Farup, Ivar; Pedersen, Marius (Peer reviewed; Journal article, 2022)
      In this paper we investigate the possibility of constructing 3D models of longer sections of the human colon using image sequences obtained from wireless capsule endoscope (WCE) video to provide enhanced viewing for ...
    • A Computational Framework for Colour Metrics and Colour Space Transforms 

      Farup, Ivar (Journal article; Peer reviewed, 2016)
      An object-oriented computational framework for the transformation of colour data and colour metric tensors is presented. The main idea of the design is to represent the transforms between spaces as compositions of objects ...
    • A Virtual Reality Clinical Education Tool for Medical Students in Norway 

      Helgestad, Amund; Rønning, Kristian Aakervik; Lien, Thomas Vincent (Bachelor thesis, 2022)
      Medisinsk utdanning i Norge står for tiden ovenfor en utfordring; det er et ønske å kunne øke antallet studentplasser, men muligheten for dette er begrenset av tilbudet til å gi praktisk klinikkundervisning. Zimmer Digital ...
    • Additivity Constrained Linearisation of Camera Calibration Data 

      Andersen, Casper Find; Farup, Ivar; Hardeberg, Jon Yngve (Peer reviewed; Journal article, 2023)
      When characterising a digital camera spectrally or colourimetrically, the camera response to a generally diffusely reflecting colour chart is often employed. The recorded responses to the light incident from each colour ...
    • Administrasjonssystem for datavitenskapsoppgaver 

      Aanesen, Johan; Klausen, Brede Fritjof; Danielsen, Svein Are (Bachelor thesis, 2019)
      Prosjektets mål har vært å lage et web basert system som simplifiserer oppgave innlevering og gjennomgang av andre sine oppgaver, dette erstatter den tidligere brukte organiseringen gjennom regneark. Gjennom bacheloren har ...
    • Administrasjonssystem for datavitenskapsoppgaver 

      Aanesen, Johan; Klausen, Brede Fritjof; Danielsen, Svein Are (Bachelor thesis, 2019)
      Prosjektets mål har vært å lage et web basert system som simplifiserer oppgave innlevering og gjennomgang av andre sine oppgaver, dette erstatter den tidligere brukte organiseringen gjennom regneark. Gjennom bacheloren har ...
    • An Evaluation of Colour-to-Greyscale Image Conversion by Linear Anisotropic Diffusion and Manual Colour Grading 

      Barba, Aldo; Farup, Ivar; Pedersen, Marius (Journal article; Peer reviewed, 2019)
      In the paper "Colour-to-Greyscale Image Conversion by Linear Anisotropic Diffusion of Perceptual Colour Metrics", Farup et al. presented an algorithm to convert colour images to greyscale. The algorithm produces greyscale ...
    • Appitude 

      Holden, Bent (Bachelor thesis, 2018)
      Denne oppgaven vil ta for seg utviklingen av en smarttelefon applikasjon. Applikasjonen sitt formål er å kunne se nærmere på bruk av eksterne sensorer til å måle og utlede statistiske verdier, fra en spesiell skiteknikk ...
    • Assessment and Design of Color Vision Deficiency Simulation and Daltonization Methods 

      Simon-Liedtke, Joschua Thomas (Doctoral theses at NTNU;2017:8, Doctoral thesis, 2017)
      Color vision in humans evolved because it improves behavioral responses related, for example, to the guidance of attention, object recognition and detection of emotional states. However, people with color vision deficiencies ...
    • Automatic EX-Inspection 

      Stordal, Cim (Bachelor thesis, 2018)
      Faulty electrical cables pose a signi cant and severe risk to both people and equipment, especially on oil rigs where electrical cables and highly combustible gases are separated by thin barriers. This thesis describes an ...
    • Bidirectional Reflectance Measurement and Reflection Model Fitting of Complex Materials Using an Image-Based Measurement Setup 

      Sole, Aditya Suneel; Farup, Ivar; Nussbaum, Peter; Tominaga, Shoji (Journal article; Peer reviewed, 2018)
      Materials with a complex visual appearance, like goniochromatic or non-diffuse, are widely used for the packaging industry. Measuring optical properties of such materials requires a bidirectional approach, and therefore, ...
    • Bio-Inspired Multimodal Imaging in Reduced Visibility 

      Lapray, Pierre-Jean; Thomas, Jean Baptiste; Farup, Ivar (Journal article; Peer reviewed, 2022)
    • Colour-to-greyscale image conversion by linear anisotropic diffusion of perceptual colour metrics 

      Farup, Ivar; Pedersen, Marius; Alsam, Ali (Chapter, 2018)
      We present an algorithm for conversion of colour images to greyscale. The underlying idea is that local perceptual colour differences in the colour image should translate into local differences in greylevel in the greyscale ...
    • A Comparison of Regularization Methods for Near-Light-Source Perspective Shape-from-Shading 

      Ahmad, Bilal; Floor, Pål Anders; Farup, Ivar (Peer reviewed; Journal article, 2022)
      3D shape reconstruction from images is an active topic in computer vision. Shape-from-Shading is an important approach which requires the surface properties and light source position to infer the 3D shape. A L2 regularizer ...
    • Constructing an optimal circulating temperament based on a set of musical requirements 

      Farup, Ivar (Journal article; Peer reviewed, 2014)
      A novel parametric circulating temperament is presented using a constructive approach. The temperament is optimal with respect to a heuristically chosen set of musical requirements. It is parametric in the sense that the ...
    • Correlations in Joint Spectral and Polarization Imaging 

      Courtier, Guillaume; Lapray, Pierre-Jean; Thomas, Jean Baptiste; Farup, Ivar (Peer reviewed; Journal article, 2021)
      Recent imaging techniques enable the joint capture of spectral and polarization image data. In order to permit the design of computational imaging techniques and future processing of this information, it is interesting to ...
    • CT Scanning as a Tool for Quality Assurance and Additive Manufacturing 

      Norbye, Eirik Gjertsen; Island, Sander; Tingstad, Jens Fossan (Bachelor thesis, 2022)
      Additiv tilvirkning er i stadig vekst og kan erstatte konvensjonell produksjon på mange områder, og behovet for kvalitetssikring er stort. Jotne EPM Technology er en ledende aktør innen utveksling av produktdata. De vil ...