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Now showing items 11413-11432 of 17316

    • PolyMeCo - Uma Ferramenta de Análise e Comparação de Malhas Poligonais 

      Silva, Samuel; Madeira, Joaquim; Santos, Beatriz Sousa (The Eurographics Association, 2021)
      A representação de modelos usando malhas poligonais é utilizada em diversos domínios. Por vezes, de forma a adequar uma determinada malha a uma aplicação particular, torna-se necessário processá-la (p.ex., para atenuar ...

    • Polynomial Approximation of Blinn-Phong Model 

      Öztürk, Aydin; Bilgili, Ahmet; Kurt, Murat (The Eurographics Association, 2006)
      The Phong model has been one of the oldest and the most popular reflection models in Computer Graphics. It can be used to model specular highlights of various materials. In this paper, we consider a polynomial model and ...

    • Polynomial Optics: A Construction Kit for Efficient Ray-Tracing of Lens Systems 

      Hullin, Matthias B.; Hanika, Johannes; Heidrich, Wolfgang (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Simulation of light transport through lens systems plays an important role in graphics. While basic imaging properties can be conveniently derived from linear models (like ABCD matrices), these approximations fail to ...

    • Polyp-Cavity Segmentation of Cold-Water Corals guided by Ambient Occlusion and Ambient Curvature 

      Schmitt, Benedikt; Titschack, Jürgen; Baum, Daniel (The Eurographics Association, 2022)
      The segmentation of cavities in three-dimensional images of arbitrary objects is a difficult problem since the cavities are usually connected to the outside of the object without any difference in image intensity. Hence, ...

    • PolyVR - A Virtual Reality Authoring System 

      Haefner, Victor (The Eurographics Association, 2014)
      Virtual Reality applications are very complex. 3D modelling and scene authoring is very time consuming and requires expertise in computer sciences. A further problem are the advanced Virtual Reality hardware setups, which ...

    • Pontos de Interesse Relevantes num Mapa: à Procura de Boas Práticas 

      Gil, Filipe; Cláudio, Ana Paula; Carmo, Maria Beatriz (The Eurographics Association, 2021)
      Neste artigo tentamos identificar um conjunto de boas práticas para a produção de símbolos gráficos que representam pontos de interesse relevantes sobre um mapa, quando se usam computadores de secretária ou portáteis. ...

    • The POP Buffer: Rapid Progressive Clustering by Geometry Quantization 

      Limper, Max; Jung, Yvonne; Behr, Johannes; Alexa, Marc (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Within this paper, we present a novel, straightforward progressive encoding scheme for general triangle soups, which is particularly well-suited for mobile and Web-based environments due to its minimal requirements on the ...

    • POP: Full Parametric model Estimation for Occluded People 

      Marin, Riccardo; Melzi, Simone; Mitra, Niloy J.; Castellani, Umberto (The Eurographics Association, 2019)
      In the last decades, we have witnessed advances in both hardware and associated algorithms resulting in unprecedented access to volumes of 2D and, more recently, 3D data capturing human movement. We are no longer satisfied ...

    • pOp: Parameter Optimization of Differentiable Vector Patterns 

      Riso, Marzia; Sforza, Davide; Pellacini, Fabio (The Eurographics Association and John Wiley & Sons Ltd., 2022)
      Procedural materials are extensively used in computer graphics, since they provide editable, resolution-independent representation of textures. However, tuning the parameters of procedural generators to achieve a desired ...

    • PoPI: Glyph Designs for Collaborative Filtering on Interactive Tabletops 

      Charleer, Sven; Klerkx, Joris; Duval, Erik (The Eurographics Association, 2015)
      Filtering data on a visualization can be a challenge when multiple people work on a shared visualization, for instance on an interactive tabletop. Visualizations can present data that satisfy the union of all user filters, ...

    • Populating Ancient Pompeii with Crowds of Virtual Romans 

      Maim, Jonathan; Haegler, Simon; Yersin, Barbara; Mueller, Pascal; Thalmann, Daniel; Gool, Luc Van (The Eurographics Association, 2007)
      Pompeii was a Roman city, destroyed and completely buried during an eruption of the volcano Mount Vesuvius. We have revived its past by creating a 3D model of its previous appearance and populated it with crowds of Virtual ...

    • Population Dynamics Visualization 

      Lozano, Miguel; García-Fernández, Ignacio; Orduña, Juan Manuel (The Eurographics Association, 2012)
      In this work we present a graphic, interactive system to validate population dynamics models through hypothesis (simulation results) and radiocarbon samples selection and process. The goal of the graphical tool is to allow ...

    • PORGY: A Visual Graph Rewriting Environment for Complex Systems 

      Pinaud, Bruno; Melançon, Guy; Dubois, Jonathan (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Graph rewriting systems (GRSs) operate on graphs by substituting local patterns according to a set of rewriting rules. The apparent simplicity of GRSs hides an incredible complexity and turns the study of these systems ...

    • Porosity Maps - Interactive Exploration and Visual Analysis of Porosity in Carbon Fiber Reinforced Polymers 

      Reh, Andreas; Plank, Bernhard; Kastner, Johann; Gröller, M. Eduard; Heinzl, Christoph (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      In this work a novel method for the characterization of porosity in carbon fiber reinforced polymers (CFRP) is presented. A visualization pipeline for the interactive exploration and visual analysis of CFRP specimens is ...

    • A Portable Graphical Display System For The Partially Sighted 

      DUNLOP, G.R.; B.Sc.,; B.E.(Hons),; Ph.D.,; M.I.E.E.,; C.Elec.Eng., (The Eurographics Association, 1986)
      A portable reading aid based on a graphical display system has been developed for partially sighted persons. This graphical display system incorporates dual microprocessor control of a flat panel AC plasma display and a ...

    • Portal-Based Path Perturbation for Metropolis Light Transport 

      Otsu, Hisanari; Hanika, Johannes; Dachsbacher, Carsten (The Eurographics Association, 2020)
      Light transport simulation in scenes with difficult visibility still remains a challenging problem. Markov chain Monte Carlo (MCMC) rendering is often employed for such configurations. It generates a sequence of correlated ...

    • Portal-Masked Environment Map Sampling 

      Bitterli, Benedikt; Novák, Jan; Jarosz, Wojciech (The Eurographics Association and John Wiley & Sons Ltd., 2015)
      We present a technique to e ciently importance sample distant, all-frequency illumination in indoor scenes. Standard environment sampling is ine cient in such cases since the distant lighting is typically only visible ...

    • Portals: Aiding Navigation in Virtual Museums 

      Kotziampasis, Ioannis; Sidwell, Nathan; Chalmers, Alan (The Eurographics Association, 2003)
      Distributed virtual environments offer an efficient way for a number of users to create complex 3D virtual worlds. However, navigation within these virtual environments can be significantly hampered by the lack of ...

    • Portrait Sculptures of Augustus: Categorization via Local Shape Comparison 

      Lu, Min; Zhang, Yujin; Zheng, Bo; Masuda, Takeshi; Ono, Shintaro; Oishi, Takeshi; Sengoku-Haga, Kyoko; Ikeuchi, Katsushi (The Eurographics Association, 2013)
      3D shape comparison with digital copies draws increasing attention in modern culture heritage studies. In this paper, we focus on analyzing portrait sculptures of Augustus with 3D scanned data. A feasible framework of ...

    • Portrait2Bust: DualStyleGAN-based Portrait Image Stylization Based on Bust Sculpture Images 

      Sinha, Saptarshi Neil; Weinmann, Michael (The Eurographics Association, 2023)
      In cultural heritage, portrait paintings and busts are special genres of artworks which are used to show the appearance and expression of a human subject. The purpose of such artwork is to serve as remembrance of the person ...