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Multimedia Technology Course (MM301)
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Multimedia Technology Course (MM301)

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Questions and Answers

What is the grading policy for the course in terms of percentages for the midterm, project, assignments & participations, and final?

Midterm - 15%, Project - 15%-20%, Assignments & Participations - 15%-20%, Final - 50%

Define multimedia from a consumer entertainment vendor's point of view.

Multimedia is an interactive cable TV with hundreds of digital channels available, or a TV-like service delivered over a high-speed Internet connection.

Which of the following are types of multimedia as viewed by a Computer Science student? (Select all that apply)

  • Audio and speech (correct)
  • Images (correct)
  • Video (correct)
  • Graphics (correct)
  • Text (correct)
  • Multimedia applications must handle digital data representation.

    <p>True</p> Signup and view all the answers

    A multimedia system integrates a wide range of symbol modes simultaneously into a coherent _____.

    <p>framework</p> Signup and view all the answers

    Match the multimedia enabling techniques with their descriptions:

    <p>Multimedia data representation and compression = Technique focusing on reducing the storage space required for multimedia content Multimedia data processing and analysis = Involves extracting semantic meanings from audios, images, and videos Transmitting multimedia data through communication networks = Deals with issues such as quality of service and synchronization during data transmission Multimedia database, indexing and retrieval = Involves handling large media files with content-based retrieval methods</p> Signup and view all the answers

    Study Notes

    Course Objectives and Grading Policy

    • The course focuses on basic knowledge of multimedia and multimedia technology.
    • Grading policy: Midterm (15%), Project (15%-20%), Assignments & Participations (15%-20%), Final (50%).

    What is Multimedia?

    • A PC vendor viewpoint: a PC with sound capability, DVD ROM drive, and multimedia-enabled microprocessors.
    • A consumer entertainment vendor viewpoint: interactive cable TV with hundreds of digital channels or TV-like service over high-speed Internet.
    • In our context: computer technology for efficient communication using different media types.
    • A Computer Science student viewpoint: applications using multiple modalities, including text, images, drawings, animation, video, sound, and interactivity.

    History of Multimedia

    • No specific details provided in the text.

    Challenges of Multimedia Computing

    • Developing a successful multimedia system is non-trivial.
    • Continuous media types like video require a lot of space to store and high bandwidth to transmit.
    • Tight timing constraints.
    • Analyzing, indexing, and organizing information in audio, image, and video is harder than in text.
    • Multimedia involves many research areas and needs complex and efficient algorithms and hardware platforms.

    Multimedia Applications

    • Examples: World Wide Web, multimedia authoring, hypermedia courseware, video-on-demand, interactive TV, computer games, virtual reality, digital video editing, and multimedia database systems.
    • Video-on-demand: systems allowing users to select and watch/listen to video/audio content when they choose.
    • Interactive TV: adding data services to traditional television technology, including on-demand delivery of content, online shopping, and banking.
    • Hypermedia: not constrained to be text-based, including graphics, images, and continuous media like sound and video.

    Virtual Reality

    • Computer-simulated environment simulating physical presence in real or imagined worlds.
    • Recreating sensory experiences, including virtual taste, sight, smell, sound, touch, etc.

    Multimedia Applications (continued)

    • Video editing: manipulating video images, including cutting segments, re-sequencing clips, adding transitions, and special effects.
    • 2D and 3D Animation: creating animated content using computer-generated imagery.

    World Wide Web

    • Universal access to web resources for everyone, everywhere.
    • HTML: a language for publishing hypermedia on the World Wide Web.
    • XML: a markup language for the WWW, allowing users to define tags.
    • XSL: similar to CSS for XML.
    • SMIL: synchronized multimedia integration language, allowing interaction among media types and user input.

    Multimedia is Multidisciplinary

    • Involves computer networks, operating systems, computer vision, image and speech processing, and human-computer interaction.

    Multimedia System

    • Integrates a wide range of symbol modes simultaneously into a coherent framework.
    • Characteristics: computer-controlled, integrated, digitally represented information, and interactive interface.

    Example Multimedia Systems

    • Video teleconferencing.
    • Collaborative working environment.
    • Real Estate in MIT's Project Athena.
    • Navigation Learning Environment in MIT's Project Athena.

    Multimedia Computing

    • Involves multimedia data representation and compression, processing and analysis, transmitting data through communication networks, and multimedia database, indexing, and retrieval.

    Data Compression

    • Raw image takes about 6M bytes, compressed to 24k bytes with JPEG, Q=50.

    Media Processing and Analysis

    • Automatic data analysis to extract semantic meanings from audios, images, and videos.
    • Methods: object tracking (face, eyes), object recognition, gesture recognition, etc.

    Object Recognition

    • David G. Lowe's paper on object recognition from local scale-invariant features.

    Multiple Object Tracking

    • Tracking objects in videos, including toys, squash, and lab environments.

    Finding Objects in Clutter

    • Detecting objects in cluttered environments.

    Action Detection

    • Detecting actions in videos, including sign language gestures and baseball sequences.

    Media Delivery

    • Transmitting multimedia data across networks, involving quality of service, synchronization, error and congestion control, and session setup.

    Multimedia Database and Indexing

    • Dealing with large media files, requiring new data structures, indexing, and searching methods.
    • Content-based multimedia retrieval is an ongoing research topic.

    Overview of Multimedia Software Tools

    • Digital audio: music sequencing and notation.
    • Graphics and image editing.
    • Video editing.
    • Animation.
    • Rendering tools.
    • Multimedia authoring.

    Useful Resources

    • Journals: IEEE Multimedia, IEEE Transactions on Multimedia, IEEE Transactions on Image Processing, and IEEE Transactions on Pattern Recognition and Machine Intelligence.
    • Conferences: ACM Multimedia, International Conference on Multimedia and Expo (ICME), IEEE Computer Vision and Pattern Recognition (CVPR), and International Conference on Computer Vision (ICCV).

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    Quiz Team

    Description

    A multimedia technology course covering the basics of multimedia and its applications. The course includes midterm, project, assignments, and final assessments.

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