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Graphics, Patterns and Images Tutorials (SIBGRAPI-T), 2010 23rd SIBGRAPI Conference on

Date Aug. 30 2010-Sept. 3 2010

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Displaying Results 1 - 15 of 15
  • [Front cover]

    Page(s): C1
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  • [Title page i]

    Page(s): i
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  • [Title page iii]

    Page(s): iii
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  • [Copyright notice]

    Page(s): iv
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  • Table of contents

    Page(s): v
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  • Preface

    Page(s): vi
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  • Organizing Committee

    Page(s): vii - viii
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  • Reviewers SIBGRAPI-T 2010

    Page(s): ix
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  • Sponsors

    Page(s): x
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  • Provenance-Enabled Data Exploration and Visualization with VisTrails

    Page(s): 1 - 9
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (7559 KB) |  | HTML iconHTML  

    Scientists are now faced with an incredible volume of data to analyze. To explore and understand the data, they need to assemble complex workflows (pipelines) to manipulate the data and create insightful visual representations. Provenance is essential in this process. The provenance of a digital artifact contains information about the process and data used to derive the artifact. This information is essential to preserve the data, to determining the data's quality and authorship, aswell as for reproducing and validating results -- all important elements of the scientific process. In this survey, we aim to inform computational and visualization scientists, users and developers about different approaches to provenance management. Using the VisTrails system as a basis and real application scenarios, we will cover different approaches to acquiring and reusing provenance, including techniques that attendees can use to provenance-enable their own tools. We will also present a series operations and user interfaces that leverage provenance for tasks that go beyond reproducibility, such as aiding users in the process of pipeline design and refinement, in performing comparative analysis and visualization, supporting collaborative data exploration as well as the publication of documented, reproducible results. View full abstract»

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  • Multi-projector VR Systems

    Page(s): 10 - 21
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1316 KB) |  | HTML iconHTML  

    Immersive multi-projection environments are becoming affordable for many research centers, but these solutions needs several integration steps to be fully operational, and some of these steps are difficult and not in a common domain. This paper presents the most recent techniques involved in multi-projection solutions, from projection to computer cluster software. The hardware in these VR (Virtual Reality) installations is a connection of projectors, screen, speaker, computers and tracking devices. This survey paper will introduce hardware options, explaining their advantages and disadvantages. We will cover software design and open source tools available, and how to administrate the whole solution. View full abstract»

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  • A Sketch on Sketch-Based Interfaces and Modeling

    Page(s): 22 - 33
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    Geometric Modeling is a widely studied area in computer graphics and methods for constructing 3D models with intuitive interfaces are a topic that has been attracting the interest of many researches. In contrast to the complicated interfaces of modeling softwares, created using the WIMP paradigm (Window, Icon, Menu, Pointer), several studies have shown applications with interfaces based on gestures, which are simpler and more natural. In this scenario, the area of Sketch-Based Interfaces and Modeling (SBIM) emerged. Sketch is a very efficient tool to convey the essence of an object with few strokes, because humans have the ability of inferring 3D models from 2D drawings. However, associating a sketch to a 3D model is not a computationally trivial task. In this paper we present a conceptualization of the area, highlighting opportunities, challenges and trends in SBIM. View full abstract»

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  • Development of Computer Graphics and Digital Image Processing Applications on the iPhone

    Page(s): 34 - 45
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2605 KB) |  | HTML iconHTML  

    The iPhone is one of the most powerful, complete and versatile portable phones on the market. There are presently more than 150.000 applications available for the iPhone, and its users had downloaded more than three billion applications so far. The iPhone have several capabilities that makes it an interesting platform for the development of applications that use image processing, computer graphics and/or pattern recognition algorithms: it is stable, popular, powerful, flexible and of course portable. What can a developer expect from the platform? What, in practical terms, can be done to implement those types of algorithms, and at what price? This survey paper (written as part of a short course presented at Sibgrapi' 2010) shows some concepts and practical issues on the developing of image processing, computer graphics and pattern recognition applications on the iPhone. Code snippets will be provided, and issues such as memory management, capabilities and limitations will be discussed. View full abstract»

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  • Author index

    Page(s): 46
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  • [Publisher's information]

    Page(s): 48
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