• Assessment of OLED Head Mounted Display for Vision Research with Virtual Reality 

      Toscani, Matteo; Gil, Raquel; Guarnera, Dar'ya; Guarnera, Giuseppe Claudio; Kalouaz, Assim; Gegenfurtner, Karl (Chapter, 2019)
      Vision researchers often rely on visual display technology to present observers with controlled stimuli, usually by means of a calibrated computer screen. Virtual Reality (VR) may allow a similar level of control, together ...
    • DIY absolute tele-colorimeter using a camera-projector system 

      Guarnera, Giuseppe Claudio; Bianco, Simone; Schettini, Raimondo (Chapter, 2018)
      Image-based reflectance measurement setups lower costs and increase the speed of reflectance acquisition. Unfortunately, consumer camera sensors are designed to produce aesthetically pleasing images, rather than faithfully ...
    • Measurement and rendering of complex non-diffuse and goniochromatic packaging materials 

      Sole, Aditya Suneel; Guarnera, Giuseppe Claudio; Farup, Ivar; Nussbaum, Peter (Peer reviewed; Journal article, 2020)
      Realistic renderings of materials with complex optical properties, such as goniochromatism and non-diffuse reflection, are difficult to achieve. In the context of the print and packaging industries, accurate visualisation ...
    • Measuring, Modeling, and Reproducing Material Appearance from Specular Profile 

      Tominaga, Shoji; Guarnera, Giuseppe Claudio (Journal article; Peer reviewed, 2019)
      A method is proposed for measuring, modeling, and reproducing material appearance from the specular profile representing reflectance distribution around a specular highlight. Our method is aimed at opaque materials with a ...
    • On the Acquisition and Reproduction of Material Appearance 

      Sole, Aditya Suneel; Gigilashvili, Davit; Midtfjord, Helene B.; Guarnera, Dar'ya; Guarnera, Giuseppe Claudio; Thomas, Jean-Baptiste; Hardeberg, Jon Yngve (Chapter, 2019)
      Currently, new technologies (e.g. 2.5D and 3D printing processes) progress at a fast pace in their capacity to (re)produce an ever-broader range of visual aspects. At the same time, a huge research effort is needed to ...
    • On the Acquisition and Reproduction of Material Appearance 

      Sole, Aditya Suneel; Gigilashvili, Davit; Midtfjord, Helene B.; Guarnera, Dar'ya; Guarnera, Giuseppe Claudio; Thomas, Jean-Baptiste; Hardeberg, Jon Yngve (Chapter, 2019)
      Currently, new technologies (e.g. 2.5D and 3D printing processes) progress at a fast pace in their capacity to (re)produce an ever-broader range of visual aspects. At the same time, a huge research effort is needed to ...
    • Perceptually validated analytical BRDFs parameters remapping 

      Guarnera, Dar'ya; Guarnera, Giuseppe Claudio; Toscani, Matteo; Glencross, Mashhuda; Li, Baihua; Hardeberg, Jon Yngve; Gegenfurtner, Karl (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 

      Guarnera, Dar'ya; Guarnera, Giuseppe Claudio; Toscani, Matteo; Glencross, Mashhuda; Li, Baihua; Hardeberg, Jon Yngve; Gegenfurtner, Karl (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 ...
    • Practical Measurement and Reconstruction of Spectral Skin Reflectance 

      Gitlina, Yuliya; Guarnera, Giuseppe Claudio; Dhillon, Daljit Singh; Hansen, Jan; Lattas, Alexandros; Pai, Dinesh; Ghosh, Abhijeet (Peer reviewed; Journal article, 2020)
      We present two practical methods for measurement of spectral skin reflectance suited for live subjects, and drive a spectral BSSRDF model with appropriate complexity to match skin appearance in photographs, including human ...
    • Three perceptual dimensions for specular and diffuse reflection 

      Toscani, Matteo; Guarnera, Dar'ya; Guarnera, Giuseppe Claudio; Hardeberg, Jon Yngve; Gegenfurtner, Karl (Peer reviewed; Journal article, 2020)
      Previous research investigated the perceptual dimensionality of achromatic reflection of opaque surfaces, by using either simple analytic models of reflection or measured reflection properties of a limited sample of ...
    • Towards a Consistent, Tool Independent Virtual Material Appearance 

      Guarnera, Darya; Guarnera, Giuseppe Claudio; Denk, Cornelia; Glencross, Mashhuda (Journal article; Peer reviewed, 2017)
      Current materials appearance is mainly tool dependent and requires time, labour and computational cost to deliver consistent visual result. Within the industry, the development of a project is often based on a virtual ...
    • Towards a Consistent, Tool Independent Virtual Material Appearance 

      Guarnera, Dar'ya; Guarnera, Giuseppe Claudio; Cornelia, Denk; Mashhuda, Glencross (Journal article; Peer reviewed, 2017)
      Current materials appearance is mainly tool dependent and requires time, labour and computational cost to deliver consistent visual result. Within the industry, the development of a project is often based on a virtual ...
    • Turning a Digital Camera into an Absolute 2D Tele‐Colorimeter 

      Guarnera, Giuseppe Claudio; Bianco, Simone; Schettini, Raimondo (Journal article; Peer reviewed, 2018)
      We present a simple and effective technique for absolute colorimetric camera characterization, invariant to changes in exposure/aperture and scene irradiance, suitable in a wide range of applications including image‐based ...
    • Virtual Material Acquisition and Representation for Computer Graphics 

      Guarnera, Dar'ya; Guarnera, Giuseppe Claudio (Book, 2018)
      This book provides beginners in computer graphics and related fields a guide to the concepts, models, and technologies for realistic rendering of material appearance. It provides a complete and thorough overview of reflectance ...
    • Woven Fabric Model Creation from a Single Image 

      Guarnera, Giuseppe Claudio; Hall, Peter; Chesnais, Alain; Glencross, Mashhuda (Journal article; Peer reviewed, 2017)
      We present a fast, novel image-based technique for reverse engineering woven fabrics at a yarn level. These models can be used in a wide range of interior design and visual special effects applications. To recover our ...