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Computer Graphics and Applications, IEEE

Issue 2 • Date March-April 2012

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Displaying Results 1 - 19 of 19
  • [Front cover]

    Page(s): c1
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  • Call for Papers

    Page(s): c2
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  • [Masthead]

    Page(s): 1
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  • Table of contents

    Page(s): 2 - 3
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  • The Best of Both Realities

    Page(s): 4 - 5
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  • CG&A's Departments

    Page(s): 6 - 7
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  • In Color Perception, Size Matters

    Page(s): 8 - 13
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    In designing colors for digital visualization systems. one of the most critical factors is the interaction between size and color appearance. Whereas artists and visual designers understand this, recommendations for using color in visualization rarely address the issue, or even recognize it. The goal is to keep the user focused on the data, with color simply one of many tools used toward problem solving and discovery. View full abstract»

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  • Digital Media and the Beginning Designer

    Page(s): 14 - 21
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    Use and creation of computer graphics can be effectively taught to beginning design students in the context of discipline-specific design projects. In particular, a case study of the pedagogy implemented by the New Jersey Institute of Technology's College of Architecture + Design provides examples of how teachers harness the students' desire to create and provide educational opportunities for undergraduates to learn about the use of digital media in the processes and products of design. Employing a carefully constructed sequence, students are exposed to (and use) computer applications for raster imaging, vector drawing, 3D modeling and rendering, and eventually building information modeling and time-based sequential representation all while producing original work through analysis and synthesis. View full abstract»

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  • Material Appearance

    Page(s): 22 - 23
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  • Modeling and Verifying the Polarizing Reflectance of Real-World Metallic Surfaces

    Page(s): 24 - 33
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    Using measurements of real-world samples of metals, the proposed approach verifies predictions of bidirectional reflectance distribution function (BRDF) models. It employs ellipsometry to verify both the actual polarizing effect and the overall reflectance behavior of the metallic surfaces. View full abstract»

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  • A Parallel Architecture for Interactively Rendering Scattering and Refraction Effects

    Page(s): 34 - 43
    Multimedia
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    A new method for interactive rendering of complex lighting effects combines two algorithms. The first performs accurate ray tracing in heterogeneous refractive media to compute high-frequency phenomena. The second applies lattice-Boltzmann lighting to account for low-frequency multiple-scattering effects. The two algorithms execute in parallel on modern graphics hardware. This article includes a video animation of the authors' real-time algorithm rendering a variety of scenes. View full abstract»

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  • Simulating How Salt Decay Ages Buildings

    Page(s): 44 - 54
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    Salt-based aging plays an important part in the realism of scenes featuring stone structures and monuments. A proposed model, based on physical behaviors and principles, replaces the simulation of complex physical formulations with ad hoc algorithms. It leads to plausible results, ultimately helping designers create aging patterns on affected objects. View full abstract»

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  • Visualizing the Surface of a Living Human Brain

    Page(s): 55 - 65
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    A proposed method visualizes the surface appearance of living human brain tissue. The goal is to investigate whether realistic models of living anatomy are possible and, if so, whether they provide added value to anatomy education and training simulators. From calibrated photography of exposed brain tissue and suitable alternatives, experiments provided data for a bidirectional reflectance distribution function, which was then used for rendering. Employing a GPU, real-time visualization of the brain's surface supported ambient occlusion, advanced texturing, subsurface scattering, and specularity. View full abstract»

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  • User-Friendly Graph Editing for Procedural Modeling of Buildings

    Page(s): 66 - 75
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    A proposed rule-based editing metaphor intuitively lets artists create buildings without changing their workflow. It's based on the realization that the rule base represents a directed acyclic graph and on a shift in the development paradigm from product-based to rule-based representations. Users can visually add or edit rules, connect them to control the workflow, and easily create commands that expand the artist's toolbox (for example, Boolean operations or local controlling operators). This approach opens new possibilities, from model verification to model editing through graph rewriting. View full abstract»

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  • Sparse Coding for Flexible, Robust 3D Facial-Expression Synthesis

    Page(s): 76 - 88
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    Computer animation researchers have been extensively investigating 3D facial-expression synthesis for decades. However, flexible, robust production of realistic 3D facial expressions is still technically challenging. A proposed modeling framework applies sparse coding to synthesize 3D expressive faces, using specified coefficients or expression examples. It also robustly recovers facial expressions from noisy and incomplete data. This approach can synthesize higher-quality expressions in less time than the state-of-the-art techniques. View full abstract»

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  • Epinome: A Visual-Analytics Workbench for Epidemiology Data

    Page(s): 89 - 95
    Multimedia
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    Early detection and rapid response to infectious-disease outbreaks rely on effective decision making based on information from disparate sources. To improve decision-making in outbreak detection and response, it's important to understand how public health practitioners seek relevant information. Epinome, a user-centric visual-analytics system, supports research on decision-making in public health, particularly evaluation of information search strategies. Epinome facilitates investigation of scripted high-fidelity large-scale simulated disease outbreaks. Its dynamic environment seamlessly evolves and adapts as the user's tasks and focus change. This video shows how the Epinome system facilitates interactive simulations of disease outbreaks. View full abstract»

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  • Tools and Products

    Page(s): 96
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  • Advertisement - Jobs Board

    Page(s): c3
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  • VisWeek 2012 Conference

    Page(s): c4
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Aims & Scope

IEEE Computer Graphics and Applications bridges the theory and practice of computer graphics.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
L. Miguel Encarnação
University of Iowa