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Computer Graphics and Applications, IEEE

Issue 1 • Date Jan.-Feb. 2011

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Displaying Results 1 - 17 of 17
  • [Front cover]

    Page(s): c1
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    Freely Available from IEEE
  • [CG&A Masthead]

    Page(s): c2
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    Freely Available from IEEE
  • Table of Contents

    Page(s): 1 - 2
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  • Against the Grain

    Page(s): 3 - 4
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  • The New Education Department and Editorial Board Members

    Page(s): 5 - 6
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  • Introduction to the Special Issue : Camera Culture

    Page(s): 7 - 8
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  • Building and Using a Database of One Trillion Natural-Image Patches

    Page(s): 9 - 19
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    Many example-based imageprocessing algorithms operate on image patches (texture synthesis, resolution enhancement, image denoising, and so on). However, inaccessibility to a large, varied collection of image patches has hindered widespread adoption of these methods. The authors describe the construction of a database of one trillion image patches and demonstrate its research utility. View full abstract»

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  • A Viewer-Centric Editor for 3D Movies

    Page(s): 20 - 35
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    A proposed mathematical framework is the basis for a viewer-centric digital editor for 3D movies that's driven by the audience's perception of the scene. The editing tool allows both shot planning and after-the-fact digital manipulation of the perceived scene shape. View full abstract»

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  • Depth Director: A System for Adding Depth to Movies

    Page(s): 36 - 48
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    Depth Director is an interactive system for converting 2D footage to 3D. It integrates recent computer vision advances with specialized tools that let users accurately recreate or stylistically manipulate 3D depths. View full abstract»

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  • A Digital Gigapixel Large-Format Tile-Scan Camera

    Page(s): 49 - 61
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    Although the resolution of single-lens reflex (SLR) and medium-format digital cameras has increased in recent years, applications for cultural-heritage preservation and computational photography require even higher resolutions. Addressing this issue, a large-format cameras' large image planes can achieve very high resolution without compromising pixel size and thus can provide high-quality, high-resolution images.This digital large-format tile scan camera can acquire high-quality, high-resolution images of static scenes. It employs unique calibration techniques and a simple algorithm for focal-stack processing of very large images with significant magnification variations. The camera automatically collects overlapping focal stacks and processes them into a high-resolution, extended-depth-of-field image. View full abstract»

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  • Using Focused Plenoptic Cameras for Rich Image Capture

    Page(s): 62 - 73
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    This approach uses a focused plenoptic camera to capture the plenoptic function's rich "non 3D" structure. It employs two techniques. The first simultaneously captures multiple exposures (or other aspects) based on a microlens array having an interleaved set of different filters. The second places multiple filters at the main lens aperture. View full abstract»

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  • Social Snapshot: A System for Temporally Coupled Social Photography

    Page(s): 74 - 84
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    Social Snapshot actively acquires and reconstructs temporally dynamic data. The system enables spatiotemporal 3D photography using commodity devices, assisted by their auxiliary sensors and network functionality. It engages users, making them active rather than passive participants in data acquisition. View full abstract»

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  • Live Theater on a Virtual Stage: Incorporating Soft Skills and Teamwork in Computer Graphics Education

    Page(s): 85 - 89
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    Industry has increasingly emphasized the need for "soft" or interpersonal skills development and team-building experience in the college curriculum. Here, we discuss our experiences with providing such opportunities via a collaborative project called the Virtual Theater. In this joint project between the Rochester Institute of Technology's School of Design and Department of Computer Science, the goal is to enable live performance in a virtual space with participants in different physical locales. Students work in teams, collaborating with other students in and out of their disciplines. View full abstract»

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  • Visualization at Supercomputing Centers: The Tale of Little Big Iron and the Three Skinny Guys

    Page(s): 90 - 95
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (186 KB) |  | HTML iconHTML  

    Supercomputing centers are unique resources that aim to enable scientific knowledge discovery by employing large computational resources-the "Big Iron." Design, acquisition, installation, and management of the Big Iron are carefully planned and monitored. Because these Big Iron systems produce a tsunami of data, it's natural to colocate the visualization and analysis infrastructure. This infrastructure consists of hardware (Little Iron) and staff (Skinny Guys). Our collective experience suggests that design, acquisition, installation, and management of the Little Iron and Skinny Guys doesn't receive the same level of treatment as that of the Big Iron. This article explores the following questions about the Little Iron: How should we size the Little Iron to adequately support visualization and analysis of data coming off the Big Iron? What sort of capabilities must it have? Related questions concern the size of visualization support staff: How big should a visualization program be-that is, how many Skinny Guys should it have? What should the staff do? How much of the visualization should be provided as a support service, and how much should applications scientists be expected to do on their own? View full abstract»

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  • Augmented Reality for Aircraft Maintenance Training and Operations Support

    Page(s): 96 - 101
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    Recent statistics on causes of aviation accidents and incidents demonstrate that to increase air-transportation safety, we must reduce human errors' impact on operations. So, the industry should first address human factors related to people in stressful roles to significantly minimize such errors. In particular, aviation maintenance employees work under high-pressure conditions- that is, they're under strict time constraints and must adhere to stringent guidelines. Because of such constraints, they might be prone to making errors. Unfortunately, many of these errors might not become apparent until an accident occurs. Although maintenance errors are a recognized threat to aviation safety, there are few simulation and computer-based tools for managing human factor issues in this field. The main advantages in using computer-based systems to train or support technicians are that computers don't forget and that they can help humans clearly understand facts. Such features can help reduce errors due to procedure violations, misinterpretation of facts, or insufficient training. Toward that end, augmented reality (AR) is a promising technology to build advanced interfaces using interactive and wearable visualization systems to implement new methods to display documentation as digital data and graphical databases. Nevertheless, many factors-such as cumbersome hardware, the need to put markers on the aircraft, and the need to quickly create digital content-seem to hinder its effective implementation in industry. View full abstract»

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  • Andy Witkin: From Computer Vision to Computer Graphics

    Page(s): 102 - 104, c3
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  • CG&A Call for Papers

    Page(s): c4
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Aims & Scope

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

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Meet Our Editors

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