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MultiMedia, IEEE

Issue 1 • Date Spring 1996

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Displaying Results 1 - 11 of 11
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  • Graphical Language to Introduce Imaging

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    Freely Available from IEEE
  • The EFX editing and effects environment

    Page(s): 15 - 29
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    The EFX digital editing and effects environment integrates facilities for nonlinear editing of digitized film, video, and audio with sophisticated image-manipulating special effects. EFX offers an intuitive, visual, direct-manipulation user interface for building multimedia compositions. This front end, discussed in the paper, is coupled with a powerful parallel-processing computer that computes the special effects and plays back the uncompressed digitized film or video in real time View full abstract»

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  • Interactive multiuser VEs in the DIVE system

    Page(s): 30 - 39
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    Multiuser virtual environments (VEs) raise challenging research questions concerning how users interact with objects, applications, and other users, and how distributed VEs behave when the number of users increases. The Distributed Interactive Virtual Environment (DIVE) is a software platform for multiuser VEs that has served as a toolkit for many distributed VE applications. It emphasizes networking and human-computer interaction and supports autonomous behavior-driven objects, collision detection, and audio and 3D navigation View full abstract»

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  • Multimedia lab supports sustainable development

    Page(s): 79 - 83
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    As we approach the new millennium the indigenous groups of America can use the latest interactive multimedia technology to embrace their language, culture, and traditional knowledge. In 1991, the author founded the Multimedia Memory of Maya Medicine (M5) project to explore the usefulness of multimedia for recording oral traditions and disseminating healing practices to nonliterate indigenous people. He compiled a video database of Maya medical practices. The M5 project demonstrated the potential of multimedia as an educational medium for Mexico's many indigenous groups and formed the basis for a permanent multimedia installation in Chiapas. The author presents the origins and setting of the Multimedia Laboratory at the College of the Southern Border (Ecosur) in San Cristobal de las Casas, Chiapas. He also discusses some ways of using interactive multimedia for sustainable development and describes several ongoing projects. The Ecosur Multimedia Lab is equipped for use by rural indigenous communities, researchers, and government policy makers. Together they can use interactive multimedia to share knowledge and experiences while exploring opportunities for sustainable agricultural development, preservation of biodiversity, and improved techniques for delivering health care View full abstract»

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  • Speech-Aware Multimedia

    Page(s): 74 - 78
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    Computer users have long desired a personal software agent that could execute verbal commands. Today's World Wide Web (WWW or Web), with its point and click hypertext interface, makes a tremendous amount of information readily available online. A speech interface would make the Web even more powerful, allowing us to access information by surfing the Web by voice. TI have developed Speech Aware Multimedia (SAM) with this in mind, to make information on the Web more accessible and useful. They combined an innovative speech recognition engine with the Web to let anyone browse arbitrary Web pages using only speech as the input medium. Speech brings added flexibility and power to the classical Web interface and makes information access more natural. Today's speech recognition capability is well matched to Web browsing. The Web page provides a natural, well defined context for a speech recognition application. The recognition engine does not need to recognize any and all possible phrases, but only those phrases pertaining to the specific page in view at the moment. This context imposes limits that significantly aid recognition performance. Furthermore, the visual information on a page prompts the user on what to request and how to request it by voice View full abstract»

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  • Four paradigms for indexing video conferences

    Page(s): 63 - 73
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    Meetings in which participants are linked by video, audio, and shared computer applications produce several parallel information streams. We created a meeting indexer, Jabber, that uses content-based indexing of the audio stream to access these parallel streams. It performs speech recognition on the audio stream, then groups the recognized words into semantically linked trees. The user interface is designed to display information with minimal distraction during meetings View full abstract»

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  • A playback schedule model for multimedia documents

    Page(s): 50 - 61
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    Multimedia documents differ significantly from traditional documents composed of text and geometric graphics. The introduction of continuous media such as audio, video, and computer-generated graphics imposes new requirements on document representation and information storage. We designed an architecture for creating multimedia documents by means of a logical structure, a layout structure, and a rendering scenario, which is a schedule for document playback View full abstract»

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  • Standardizing headers in the quest for interoperability

    Page(s): 84 - 88
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    The popular, business, and scientific media are full of predictions and promises for the national and global information infrastructures. However, one key problem is enabling interoperability in an open communications environment. In digital communications, simple examination does not reveal what a stream of bits represents-“bits are bits”. Headers and descriptors, a labeling mechanism, provide important identification for bit streams and thereby enable interoperability. Our work on headers and descriptors is part of a continuing effort to understand and foster the convergence and interplay of computing, communications, and interactive media. The header/descriptor concept, as represented here, began with US based efforts to define an advanced television system, high definition television (HDTV). Cross industry harmonization objectives, especially interoperability with digital computer and telecommunications systems, became formal selection criteria for the Federal Communications Commission's advanced television selection process. We explain the objectives and rationale underlying our work on headers and descriptors, and propose specific design concepts for achieving a truly universal header. An attractive, accessible, and sustainable information infrastructure depends on easy data sharing and preservation across varying systems. This larger goal, not simply the market needs of advanced television, drives our efforts View full abstract»

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  • Visual programming of virtual worlds animation

    Page(s): 40 - 49
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    In virtual reality interfaces, realistic animation of virtual agents enhances human-computer interaction by supporting direct engagement in the virtual environment. The paper discusses visual programming by example which allows designers to define animation rules by “training” agents, thereby building behavioral rules into specification models that run automatically during the execution of the virtual environment. This allows for direct and effective replication of real-life phenomena and agent reactions to environmental stimuli View full abstract»

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The magazine contains technical information covering a broad range of issues in multimedia systems and applications

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John R. Smith
IBM T.J. Watson Research Center