Browsing Eurographics Workshops and Symposia by Author "Marroquim, Ricardo"

Now showing items 1-6 of 6

    • Accessible Digitisation and Visualisation of Open Cultural Heritage Assets 

      Medeiros e Sá, Asla; Ibañez Vila, Adolfo Bartolome; Rodriguez Echavarria, Karina; Marroquim, Ricardo; Luiz Fonseca, Vivian (The Eurographics Association, 2019)
      In this research, we proposed a methodology for documenting open and medium-large scale cultural heritage assets. By open we mean both in the sense of their location in open spaces and the fact that they are openly accessible ...

    • AR-Assisted Craniotomy Planning for Tumour Resection 

      Wooning, Joost; Benmahdjoub, Mohamed; Walsum, Theo van; Marroquim, Ricardo (The Eurographics Association, 2021)
      Craniotomy is a procedure where neurosurgeons open the patient's skull to gain direct access to the brain. The craniotomy's position defines the access path from the skull surface to the tumour and, consequently, the healthy ...

    • A New Baseline for Feature Description on Multimodal Imaging of Paintings 

      Toorn, Jules van der; Wiersma, Ruben; Vandivere, Abbie; Marroquim, Ricardo; Eisemann, Elmar (The Eurographics Association, 2022)
      Multimodal imaging is used by conservators and scientists to study the composition of paintings. To aid the combined analysis of these digitisations, such images must first be aligned. Rather than proposing a new domain-specific ...

    • A Practical and Efficient Approach for Correct Z-Pass Stencil Shadow Volumes 

      Usta, Baran; Scandolo, Leonardo; Billeter, Markus; Marroquim, Ricardo; Eisemann, Elmar (The Eurographics Association, 2019)
      Shadow volumes are a popular technique to compute pixel-accurate hard shadows in 3D scenes. Many variants exist that trade off accuracy and efficiency. In this work, we present an artifact-free, efficient, and easy-to-implement ...

    • Semi-Automatic Perspective Lines from Paintings 

      Coudert-Osmont, Yoann; Eisemann, Elmar; Marroquim, Ricardo (The Eurographics Association, 2022)
      Perspective cues play an important role in painting analysis as it may unveil important characteristics about the painter's techniques and creation process. Nevertheless, extracting perspective lines and their corresponding ...

    • What is the Reddening Effect and does it really exist? 

      Clausen, Olaf; Marroquim, Ricardo; Fuhrmann, Arnulph; Weigand, Holger (The Eurographics Association, 2019)
      The simulation of light-matter interaction is a major challenge in computer graphics. Particularly challenging is the modelling of light-matter interaction of rough surfaces, which contain several different scales of ...