IEEE Computer Graphics and Applications

Issue 4 • July-Aug. 2004

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Displaying Results 1 - 20 of 20
  • [Front cover]

    Publication Year: 2004, Page(s): c1
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  • [Inside front cover]

    Publication Year: 2004, Page(s): c2
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  • Masthead

    Publication Year: 2004, Page(s): 1
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  • Table of contents

    Publication Year: 2004, Page(s):2 - 3
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  • About the cover - Design by Points

    Publication Year: 2004, Page(s):4 - 5
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  • Streaming video transforms the media industry

    Publication Year: 2004, Page(s):6 - 12
    Cited by:  Papers (1)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1104 KB) | HTML iconHTML

    After years of promises, streaming media has finally arrived. Skeptics argued for years that IP-based videa was an overhyped technology that only succeeded in frustrating users by its high failure rate. But proponents maintained that streaming was first and foremost about access, and that full-screen, DVD-quality video was a matter of time. Developments have proved them right. Streaming media is c... View full abstract»

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  • Top scientific visualization research problems

    Publication Year: 2004, Page(s):13 - 17
    Cited by:  Papers (89)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB) | HTML iconHTML

    Scientific visualization as currently understood and practiced is still a relatively new discipline. As a result, we visualization researches are not necessarily accustomed to undertaking the sorts of self-examinations that other scientists routinely undergo in relation to their work. Yet if we are to creat a disciplinary culture focused on matters of real scientific importance and committed to re... View full abstract»

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  • Training in peacekeeping operations using virtual environments

    Publication Year: 2004, Page(s):18 - 21
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    Proper training of military personnel, at all levels, has never been more crucial. In this article, we describe the application of virtual environment technology to a novel and complex task-the military checkpoint. In the process, we also address differences between an immersive virtual environment training system and a destop version. View full abstract»

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  • Point-Based Computer Graphics

    Publication Year: 2004, Page(s):22 - 23
    Cited by:  Papers (5)
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  • A simple approach for point-based object capturing and rendering

    Publication Year: 2004, Page(s):24 - 33
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1189 KB) | HTML iconHTML

    Point-based object representations are a powerful alternative to traditional polygonal object representations. Capturing 3D geometry is a mission-critical content acquisition technique in application domains such as virtual reality, CAD/CAM, and physical asset management. We describe SPOC, a simple, point-based object capturing system we've developed to automatically capture and process 3D geometr... View full abstract»

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  • Image-based rendering of range data with estimated depth uncertainty

    Publication Year: 2004, Page(s):34 - 41
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5164 KB) | HTML iconHTML

    Image-based rendering (IBR) involves constructing an image from a new viewpoint, using several input images from different viewpoints. Our approach is to acquire or estimate the depth for each pixel of each input image. We then reconstruct the new view from the resulting collection of 3D points. When rendering images from photographs, acquiring and registering data is far from perfect. Accuracy ca... View full abstract»

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  • Scalar-function-driven editing on point set surfaces

    Publication Year: 2004, Page(s):43 - 52
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (979 KB) | HTML iconHTML

    Three-dimensional acquisition is an increasingly popular means of creating surface models. As 3D digital photographic and scanning devices produce higher resolution images, acquired geometric data sets grow more complex in terms of the modeled objects' size, geometry, and topology. Point-based geometry is a form of 3D content acquisition popular in graphics and related visual computing areas. Poin... View full abstract»

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  • Normal improvement for point rendering

    Publication Year: 2004, Page(s):53 - 56
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1760 KB) | HTML iconHTML

    Models created from 3D scanners are becoming more prevalent as the demand for realistic geometry grows and scanners become more common. Unfortunately, scanned models are invariably noisy. This noise corrupts both samples' positions and normals. Our proposed method for improving normals is derived from a feature-preserving geometry filter. Many such filters are available, most operating on models r... View full abstract»

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  • Flexible point-based rendering on mobile devices

    Publication Year: 2004, Page(s):57 - 63
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (850 KB) | HTML iconHTML

    We have seen the growing deployment of ubiquitous computing devices and the proliferation of complex virtual environments. As demand for detailed and high-quality geometric models increases, typical scene size (often including scanned 3D objects) easily reaches millions of geometric primitives. Traditionally, vertices and polygons (faces) represent 3D objects. These representations, coupled with t... View full abstract»

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  • Hierarchical splatting of scattered 4D data

    Publication Year: 2004, Page(s):64 - 72
    Cited by:  Papers (18)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2184 KB) | HTML iconHTML

    To let scientists interactively view these data sets at high resolution on desktop workstations or PCs, we want to visualize the scattered data directly without resampling them to a volume density. We propose accelerating the visualization of scattered point data with a hierarchical data structure based on a principal component analysis (PCA) clustering procedure. By traversing this structure from... View full abstract»

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  • Synchronized world embedding in virtual environments

    Publication Year: 2004, Page(s):73 - 83
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (582 KB) | HTML iconHTML

    We introduce a novel distributed approach that lets users copy a given CVE section and keep it consistent with all its other copies and its original CVE area. Although 3D world modeling tools such as Alias' Maya and Discreet's 3DS Max already use object embedding, our method is the first to introduce it in a functioning CVE system. We also expand the traditional object-embedding concept by introdu... View full abstract»

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  • Digital Cubism, Part 2

    Publication Year: 2004, Page(s):84 - 95
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3105 KB) | HTML iconHTML

    The author has developed a technique which allows him to show disparate events in a single frame, imaged by different cameras in different places, yet all smoothly joined together visually. The technique is called the multicamera collage, or MCC. The MCC is a collection of five programs: two shaders and three standalone programs. The shaders capture data from the rendering program when making the ... View full abstract»

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  • Lines in space

    Publication Year: 2004, Page(s):96 - 102
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (235 KB) | HTML iconHTML

    Looks at the following problem: given four lines, K L, M and N, find a fifth line V that intersects all four. This problem was originally solved, and solved well, by Seth Teller and Michael Hohmeyer in their 1999 article that appeared in Journal of Graphics Tools. Teller and Hohmeyer solved the problem purely numerically using singular value decomposition. SVD is one of the more reliable numerical... View full abstract»

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  • New Products

    Publication Year: 2004, Page(s):103 - 104
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  • Inside Back Cover

    Publication Year: 2004, Page(s): c3
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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.

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Meet Our Editors

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