IEEE Computer Graphics and Applications

Early Access Articles

Early Access articles are made available in advance of the final electronic or print versions. Early Access articles are peer reviewed but may not be fully edited. They are fully citable from the moment they appear in IEEE Xplore.

Filter Results

Displaying Results 1 - 16 of 16
  • ARIES: Enabling Visual Exploration and Organization of Art Image Collections

    Publication Year: 2017, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1379 KB)

    Art historians have traditionally used physical light boxes to prepare exhibits or curate collections. On a light box, they can place slides or printed images, move the images around at will, group them as desired, and visually compare them. The transition to digital images has rendered this workflow obsolete. Now, art historians lack well-designed, unified interactive software tools that effectiv... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Crosswalk localization from low resolution satellite images to assist visually impaired people

    Publication Year: 2016, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (318 KB)

    In this paper we propose a model for crosswalk detection and localization by using satellite images captured from Google Maps, for the purpose of assisting visually impaired people. The detection is performed by a SVM classifier, which is combined with Google Road Map to speed up computation time and to eliminate some possible false alarms. We assume that a visually impaired person holds a smartph... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Objective Quality Assessment and Perceptual Compression of Screen Content Images

    Publication Year: 2016, Page(s): 1
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    Screen content image (SCI) has recently emerged as an active topic due to the rapidly increasing demand in many graphically rich services such as wireless displays and virtual desktops. Image quality models play an important role in measuring and optimizing user experience of SCI compression and transmission systems, but are currently lacking. SCIs are often composed of pictorial regions and compu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Beaming into the News: A System for and Case Study of Tele-Immersive Journalism

    Publication Year: 2016, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (282 KB)

    We show how a combination of virtual reality and robotics can be used to beam a physical representation of a person to a distant location, and describe an application of this system in the context of journalism. Full body motion capture data of a person is streamed and mapped in real time, onto the limbs of a humanoid robot present at the remote location. A pair of cameras in the robot's 'eyes' st... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Poor Man's Virtual Camera: Real-Time Simultaneous Matting and Camera Pose Estimation

    Publication Year: 2016, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    Today's film and advertisement production heavily uses computer graphics combined with living actors by chromakeying. The matchmoving process typically takes a considerable manual effort. Semi-automatic matchmoving tools exist as well, but they still work offline and require manual check-up and correction. In this article, we propose an instant matchmoving solution for green screen. It uses a rece... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Sensing Thumb-to-Finger Taps for Symbolic Input in VR/AR Environments

    Publication Year: 2016, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2759 KB)

    In this paper we demonstrate how thumb-to-finger tap interaction can be employed to perform eyes-free discrete symbolic input in virtual and augmented reality environments. Our DigiTap device is worn on the wrist to keep the hand free from any instrumentation such that tactile sense and dexterity are not impaired. DigiTap senses the jerk that is caused by a tap and takes an image sequence to detec... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • SSECRETT and NeuroTrace: Interactive Visualization and Anaysis Tools for Large-Scale Neuroscience Datasets

    Publication Year: 2011, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5087 KB)

    Recent advances in optical and electron microscopy allow scientists to acquire extremely high-resolution images for neuroscience research. Datasets imaged with modern electron microscopes can range between tens of terabytes to about one petabyte in size. These large data sizes and the high complexity of the underlying neural structures make it very challenging to handle the data at reasonably inte... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Extreme Scaling of Production Visualization Software on Diverse Architectures

    Publication Year: 2011, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1857 KB)

    We present the results of a series of experiments studying how visualization software scales to massive data sets. Although several paradigms exist for processing large data, we focus on pure parallelism,the dominant approach for production software. These experiments utilized multiple visualization algorithms and were run on multiple architectures. Two types of experiments were performed.For the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Prajna: Adding Automated Reasoning to the Visual Analysis Process

    Publication Year: 2009, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    Applications and systems can represent knowledge in a variety of ways. A graphic display might allow a knowledge analyst to infer new information through interactive visualizations. Knowledge can be represented as a collection of facts, which can then be used for automatic inference. Knowledge can also be represented or stored in various archives, such as databases or formatted files. Those develo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Knowledge-Assisted Visualization and Segmentation of Geologic Features using Implicit Surfaces

    Publication Year: 2009, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1722 KB)

    We present a technique that allows knowledge-assisted interactive visualization and segmentation of geologic surfaces. Our method employs domain knowledge about the structure and topology of geologic features in seismic data in order to steer dynamic surfaces into those features. Specialized attributes guide evolving surfaces by adapting to the known shape of geologic features. Geometric, topologi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Visual Analysis of Flow Features Using Information Theory

    Publication Year: 2009, Page(s): 1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1780 KB)

    Unsteady scientific data is one of the top challenges in visualization, as a huge amount of information has to be displayed. $epsilon$-Machines are an information-theoretic concept that compress the dynamics in the data set to a finite state machine, where nodes represent local flow patterns and edges transitions between them. In this paper, we propose several enhancements to the fundamental $epsi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Knowledge-Based 3D Reconstruction and Visualization of Human Ribcage and Lungs

    Publication Year: 2009, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1441 KB)

    To help mimic some of the useful features of CT scans for early detection of diseases like lung cancer at a fraction of the cost, a knowledge‐assisted interactive 3D ribcage and lung reconstruction algorithm is proposed. The ribcage and lung reconstructions are both based on the typical PA (rear) and Lateral (side) X‐ray images that are already being acquired during p... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Navigation Tools for Augmented CAD Viewing

    Publication Year: 2009, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3400 KB)

    The creation of a computer aided design (CAD) model is the first step in the development of any modern physical product. This model will be used during the complete life cycle of the product: prototyping, fabrication, maintenance and upgrade. During the construction, a discrepancy between the model and the object can occur. In order to maintain and upgrade the object it is mandatory to have a mode... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application-Driven Compression for Visualizing Large-Scale Time-Varying Volume Data

    Publication Year: 2009, Page(s): 1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2219 KB)

    In many areas of science and engineering, the desires to study a problem at the highest possible resolution have led to an explosive growth of data. It is imperative to reduce the data to a manageable scale for analysis and visualization. For high-precision floating-point data, compressing the data solely based on values can only achieve a limited saving. Further reduction is possible with the fac... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Volumetric Ambient Occlusion

    Publication Year: 2009, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1575 KB)

    This paper presents a new GPU-based algorithm to compute ambient occlusion. We first examine how ambient occlusion is related to the physically founded rendering equation. The correspondence is made by introducing a fuzzy membership function that defines what ``near occlusions'' mean. Then we develop a method to calculate ambient occlusion in real-time without any pre... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Insight into 3D goal-directed movements through a division into meaningful movement phases

    Publication Year: 2011, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (155 KB)

    The measures that are currently used to evaluate users’ performances on interaction tasks in virtual environments often do not provide sufficient information for how to improve these interactions. The current paper proposes a new method for analyzing 3D goal-directed movements based on dividing them into meaningful phases. We apply the method to experimental data that we have collec... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE CG&A bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a unique combination of peer-reviewed feature articles and informal departments, including product announcements.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
L. Miguel Encarnação
The QED Group