Now showing items 10432-10451 of 17315

    • On Quality Indicators for Progressive Visual Analytics 

      Angelini, Marco; May, Thorsten; Santucci, Giuseppe; Schulz, Hans-Jörg (The Eurographics Association, 2019)
      A key component in using Progressive Visual Analytics (PVA) is to be able to gauge the quality of intermediate analysis outcomes. This is necessary in order to decide whether a current partial outcome is already good enough ...
    • On Quality Metrics of Bounding Volume Hierarchies 

      Aila, Timo; Karras, Tero; Laine, Samuli (ACM, 2013)
      The surface area heuristic (SAH) is widely used as a predictor for ray tracing performance, and as a heuristic to guide the construction of spatial acceleration structures. We investigate how well SAH actually predicts ray ...
    • On Realism of Architectural Procedural Models 

      Beneš, Jan; Kelly, Tom; Děchtěrenko, Filip; Křivánek, Jaroslav; Müller, Pascal (The Eurographics Association and John Wiley & Sons Ltd., 2017)
      The goal of procedural modeling is to generate realistic content. The realism of this content is typically assessed by qualitatively evaluating a small number of results, or, less frequently, by conducting a user study. ...
    • On Reducing the Phong Shading Method 

      Claussen, Ute (Eurographics Association, 1989)
      Today, the shading method of Phong plays an important role in the design of realtime image generation systems. Often, the model has been used in combination with a color interpolation, suppressing a main property of this ...
    • On Simulated Annealing and the Construction of Linear Spline Approximations for Scattered Data 

      Kreylos, Oliver; Hamann, Bernd (Springer and The Eurographics Association, 1999)
      We describe a method to create optimal linear spline approximations to arbitrary functions of one or two variables, given as scattered data without known connectivity.We start with an initial approximation consisting of a ...
    • On the 3D Documentation of the Igel Column Original and Copy. Structured 3D Survey and Analytical 3D Information System 

      Schaich, Martin; Jahnke, Peter; Knechtel, Sebastian; Rahrig, Max (The Eurographics Association, 2013)
      The Igel Column, 23 m high, is one of the best known Roman column monuments in Germany and is part of the UNESCO World Heritage 'Roman Structures, Cathedral and Church of Our Lady' in Trier. The list also includes a ...
    • On the Acquisition of Human Emotions in Space and Time 

      Schöning, Julius; Bonhage, Corinna E. (The Eurographics Association, 2015)
      Emotion assessments traditionally take place in academic or medical settings. The impact of environmental factors such as e.g. the characteristics of the place, the weather, or the time of day on the emotional state of ...
    • 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 ...
    • On the Analysis of Acoustic Distance Perception in a Head Mounted Display 

      Dollack, Felix; Imbery, Christina; Bitzer, Jörg (The Eurographics Association, 2017)
      Recent work has shown that distance perception in virtual reality is different from reality. Several studies have tried to quantify the discrepancy between virtual and real visual distance perception but only little work ...
    • On the Application of Quantization and Dithering Techniques to History of Arts 

      Coltelli, P.; Faconti, G.; Marfori, F. (Blackwell Science Ltd and the Eurographics Association, 1993)
      The diffusion of computing techniques within humane studies is considerably increasing, due to technological advances and reduction in computing costs, with History of Arts being one of the most interesting fields of ...
    • On the Beat! Timing and Tension for Dynamic Characters 

      Allen, Brian; Chu, Derek; Shapiro, Ari; Faloutsos, Petros (The Eurographics Association, 2007)
      Dynamic simulation is a promising complement to kinematic motion synthesis, particularly in cases where simulated characters need to respond to unpredictable interactions. Moving beyond simple rag-doll effects, though, ...
    • On the Beat: Analysing and Evaluating Synchronicity in Dance Performances 

      Menzel, Malte; Tauscher, Jan-Philipp; Magnor, Marcus (The Eurographics Association, 2023)
      This paper presents a method to analyse and evaluate synchronicity in dance performances automatically. Synchronisation of a dancer's movement and the accompanying music is a vital characteristic of dance performances. We ...
    • On the characterization of avatars in Distributed Virtual Worlds 

      Morillo, Pedro; Fernandez, Marcos; Orduna, Juan Manuel (Eurographics Association, 2003)
      Current Distributed Virtual Environment (DVE) systems run simulations based on a server-network architecture, where the population of avatars should be properly assigned to the servers in the DVE. This goal, called ...
    • On the Computational Requirements of Virtual Reality Systems 

      Dévai, Frank (Eurographics Association, 1997)
      The computational requirements of high-quality, real-time rendering exceeds the limits of generally available computing power. However illumination effects, except shadows, are less noticeable on moving pictures. Shadows ...
    • On the Design of a Mixed-Reality Annotations Tool for the Inspection of Pre-fab Buildings 

      García-Pereira, Inma; Gimeno, Jesús; Portalés, Cristina; Vidal-González, María; Morillo, Pedro (The Eurographics Association, 2018)
      The introduction of Augmented Reality (AR) and Virtual Reality (VR) in the inspection works carried out during the construction of prefabricated buildings can allow the early detection and elimination of deviations in their ...
    • On the Design of a Real-Time Volume Rendering Engine 

      Smit, J.; Wessels, N.J.; Horst, A. van del'; Bentum, M.J. (The Eurographics Association, 1992)
      An architecture for a Real-Time Volume Rendering Engine is given capable of computing750x750x512 samples from a 3D dataset at a rate of 25 images per second.The RT-VRE uses for this purpose 64 dedicated rendering chips, ...
    • On the Digital Reconstruction and Interactive Presentation of Heritage Sites through Time 

      El-Hakim, Sabry F.; MacDonald, George; Lapointe, Jean-François; Gonzo, Lorenzo; Jemtrud, Michael (The Eurographics Association, 2006)
      Virtual time travel from existing remains of a heritage site to its previous states and original condition is an educational and interesting experience and can provide better understanding of history. However, digitally ...
    • On the Editing of Images: Selecting, Cutting and Filling-in 

      Labrosse, F. (The Eurographics Association, 2003)
      This paper is two-fold. On the one hand, we present a system using qualitative spatial reasoning to help a user choose parts of an image that form interesting objects. The system then allows the user to cut these parts as ...
    • On the Effective Dimension of Light Transport 

      Lessig, Christian; Fiume, Eugene (The Eurographics Association and Blackwell Publishing Ltd, 2010)
      Light transport is often characterized within a high-dimensional space although practitioners have long known that it commonly behaves as a much lower-dimensional phenomenon. We study the effective dimension of light ...
    • On the energy complexity of Algorithms realized in CMOS, a Graphics Example 

      Smit, J.; Bosma, M. (The Eurographics Association, 1996)
      A theory about the energy consumption of algorithms realized in CMOS, presented in related work, makes it possible to calculate the minimal amount of energy dissipated for the execution of an algorithm. The rendering of a ...