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Now showing items 11007-11026 of 17315

    • Perceived Quality of Simplified Polygonal Meshes: Evaluation using Observer Studies 

      Silva, Samuel; Ferreira, Carlos; Madeira, Joaquim; Santos, Beatriz Sousa (The Eurographics Association, 2006)
      The complexity of a polygonal mesh model is usually reduced by applying a simplification method, resulting in a similar mesh having less vertices and faces. Although several such methods have been developed, it is not yet ...

    • Perceived Rendering Thresholds for High-Fidelity Graphics on Small Screen Devices 

      Aranha, M.; Debattista, K.; Chalmers, A.; Hill, S. (The Eurographics Association, 2006)
      Small screen devices, also known as small-form-factor (SFF) devices including mobile phones and ultra mobile PCs are increasingly ubiquitous. Their uses includes gaming, navigation and interactive visualisation. SFF devices ...

    • Perceiving Complex Causation Through Interaction 

      Ware, Colin (ACM, 2013)
      When we interact with a touch screen computational device we have the strong subjective impression that we are directly causing changes that occur on the screen. For example, sliding a finger on a screen causes scrolling ...

    • Perception and Mental Rotation of 3D-Freeform Surfaces in an Immersive Projection System 

      Gaggioli, Andrea; Breining, Ralf (The Eurographics Association, 2001)
      This paper reports on three experiments performed to examine the effects of different visualization techniques of 3D computer-generated freeform surfaces on subjects perceptual and cognitive performance while doing ...

    • Perception Based Color Image Difference 

      Neumann, Laszlo; Matkovic, Kresimir; Purgathofer, Werner (Blackwell Publishers Ltd and the Eurographics Association, 1998)
      A good image metric is often needed in digital image synthesis. It can be used to check the convergence behavior in progressive methods, to compare images rendered using various rendering methods etc. Since images are ...

    • Perception Based Image Editing 

      Lopez-Moreno, Jorge (Lopez-Moreno, 2011-04-08)
      Image editing and post-processing techniques have matured over the years, making it difficult (vergingon impossible) to assess whether an image has been digitally enhanced or modiffied somehow. However,complex manipulations ...

    • Perception of Animated Node-Link Diagrams for Dynamic Graphs 

      Ghani, Sohaib; Elmqvist, Niklas; Yi, Ji Soo (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Effective visualization of dynamic graphs remains an open research topic, and many state-of-the-art tools use animated node-link diagrams for this purpose. Despite its intuitiveness, the effectiveness of animation in ...

    • Perception of Car Shape Orientation and Anisotropy Alignment 

      Filip, Jiri; Kolafová, Martina (The Eurographics Association, 2018)
      The color designers are used to introduce customized product design, visually communicating the unique impression of a car. They always carefully observe harmony of color and body shape to obtain desired visual impression. ...

    • Perception of Clones in Forest Rendering 

      Purvis, Alan; Sundstedt, Veronica (The Eurographics Association, 2010)
      The application of instanced clones represents a powerful technique for reducing the time and space requirements of the storage and visualization of large populations of similar objects. This paper presents the results of ...

    • The Perception of Correlation in Scatterplots 

      Rensink, Ronald A.; Baldridge, Gideon (The Eurographics Association and Blackwell Publishing Ltd., 2010)

    • The Perception of Graph Properties in Graph Layouts 

      Soni, Utkarsh; Lu, Yafeng; Hansen, Brett; Purchase, Helen C.; Kobourov, Stephen; Maciejewski, Ross (The Eurographics Association and John Wiley & Sons Ltd., 2018)
      When looking at drawings of graphs, questions about graph density, community structures, local clustering and other graph properties may be of critical importance for analysis. While graph layout algorithms have focused ...

    • Perception of Highlight Disparity at a Distance in Consumer Head-Mounted Displays 

      Toth, Robert; Hasselgren, Jon; Akenine-Möller, Tomas (ACM Siggraph, 2015)
      Stereo rendering for 3D displays and for virtual reality headsets provide several visual cues, including convergence angle and highlight disparity. The human visual system interprets these cues to estimate surface properties ...

    • Perception of Visual Artifacts in Image-Based Rendering of Façades 

      Vangorp, Peter; Chaurasia, Gaurav; Laffont, Pierre-Yves; Fleming, Roland W.; Drettakis, George (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Image-based rendering (IBR) techniques allow users to create interactive 3D visualizations of scenes by taking a few snapshots. However, despite substantial progress in the field, the main barrier to better quality and ...

    • Perception-Augmenting Illumination 

      Solteszova, Veronika (Solteszova, 2012-10-04)
      At each stage of the visualization pipeline, the information is impeded by loss or by noise because of imprecise acquisition, storage limitations, and processing. Furthermore, it passes through the complex and not yet well ...

    • Perception-Aware Computational Fabrication: Increasing The Apparent Gamut of Digital Fabrication 

      Piovarci, Michal (Università della Svizzera italiana, 2020-10-19)
      Haptic and visual feedback are important for assessing objects' quality and affordance. One of the benefits of additive manufacturing is that it enables the creation of objects with personalized tactile and visual properties. ...

    • Perception-Aware Uncertainty Glyphs in the 3D Vector Fields 

      Lee, Joong-Youn; Park, Jinah (The Eurographics Association, 2018)
      We often cannot avoid value uncertainties when curating raw data to obtain a final visualization image. Although numerous studies maintain the importance of uncertainty visualization, there lack a standard means of depicting ...

    • Perception-based Lighting Design 

      Ha, Hai Nam; Olivier, Patrick (The Eurographics Association, 2006)
      Perception-based lighting design approaches model image quality using a cognitively grounded objective function which is in turn optimised through manipulation of the lighting parameters of a scene. We present, and ...

    • Perception-Based Lighting-by-Example 

      Ha, Hai Nam; Olivier, Patrick (The Eurographics Association, 2007)
      In computer graphics, easy-to-use tools for configuring lighting for 3D scenes are required by users. Following a perception-based lighting design framework, which models image quality using cognitively inspired objective ...

    • Perception-based painterly rendering: functionality and interface design 

      Nunes, Samuel; Almeida, Daniel; Brito, Vera; Carvalho, Joao; Rodrigues, Joao; Buf, J. M. Hans du (The Eurographics Association, 2006)
      Painterly rendering (non-photorealistic rendering or NPR) aims at translating photographs into paintings with discrete brush strokes, simulating certain techniques (im- or expressionism) and media (oil or watercolour). ...

    • Perception-Based Rendering: Eyes Wide Bleached 

      Gutierrez, Diego; Anson, Oscar; Munoz, Adolfo; Seron, Francisco J. (The Eurographics Association, 2005)
      Perception issues are a key factor in rendering Vision-Realistic images. This paper develops a novel spectral sensitive model of the Human Visual System (HVS) in order to simulate the bleaching effect in retinal photopigments. ...