Browsing Material Appearance Modeling by Subject "Digitization and Image Capture"

Now showing items 1-10 of 10

    • Geometric Accuracy Analysis of Stationary BTF Gonioreflectometers 

      Havran, V. (The Eurographics Association, 2015)
      The accurate BTF data representation requires specialized measurement gantries, some of them designed as gonireflectometers. These consist of an illumination source and a camera mounted on two robotic arms, one degree of ...

    • Grand Challenges: Material Models in the Automotive Industry 

      Schregle, R.; Denk, C.; Slusallek, P.; Glencross, M. (The Eurographics Association, 2013)
      Material reflectance definitions are core to high fidelity visual simulation of objects within a compelling 3D scene. In the automotive industry these are used across the entire business process: from conceptualisation of ...

    • Linear Models for Material BTFs and Possible Applications 

      Brok, D. den; Weinmann, M.; Klein, R. (The Eurographics Association, 2015)
      Due to the richness of real-world materials, arguably one of the biggest challenges in rendering is to come up with models that describe their appearance well. The image-based bidirectional texture function (BTF) is known ...

    • On the Advancement of BTF Measurement on Site 

      Havran, Vlastimil; Hosek, Jan; Nemcova, Sarka; Cap, Jiri (The Eurographics Association, 2018)
      We present our progress to the on-site measurement of the spatially varying surface reflectance represented by bidirectional texture function (BTF). This requires a physical realization of a portable instrument that can ...

    • Practical Experiences with Using Autocollimator for Surface Reflectance Measurement 

      Havran, Vlastimil (The Eurographics Association, 2016)
      We present our experiences with using an autocollimator to set up the surface reflectance measurement for both BRDF and BTF. Assuming the measured material appearance is put on a locally flat surface, the autocollimator ...

    • The Problem of Entangled Material Properties in SVBRDF Recovery 

      Saryazdi, Soroush; Murphy, Christian; Mudur, Sudhir (The Eurographics Association, 2020)
      SVBRDF (spatially varying bidirectional reflectance distribution function) recovery is concerned with deriving the material properties of an object from one or more images. This problem is particularly challenging when the ...

    • Quality Assurance Based on Descriptive and Parsimonious Appearance Models 

      Nielsen, J. B.; Eiriksson, E. R.; Kristensen, R. L.; Wilm, J.; Frisvad, J. R.; Conradsen, K.; Aanæs, H. (The Eurographics Association, 2015)
      In this positional paper, we discuss the potential benefits of using appearance models in additive manufacturing, metal casting, wind turbine blade production, and 3D content acquisition. Current state of the art in ...

    • Statistical Characterization of Surface Reflectance 

      Havran, Vlastimil; Sbert, Mateu (The Eurographics Association, 2014)
      The classification of surface reflectance functions as diffuse, specular, and glossy has been introduced by Heckbert more than two decades ago. Many rendering algorithms are dependent on such a classification, as different ...

    • Towards a Practical Gamut of Appearance Acquisition 

      Fuchs, M.; Koch, S.; Gieseke, L.; Mozer, F.; Eberhardt, B. (The Eurographics Association, 2013)
      We propose discussing the performance of appearance modeling in terms of supported material and illumination gamut. While we have a precise understanding of the cost of any given appearance modeling method, performance is ...

    • Towards Sparse and Multiplexed Acquisition of Material BTFs 

      Brok, Dennis den; Weinmann, Michael; Klein, Reinhard (The Eurographics Association, 2017)
      We present preliminary results on our effort to combine sparse and illumination-multiplexed acquisition of bidirectional texture functions (BTFs) for material appearance. Both existing acquisition paradigms deal with a ...