1 / 18

Fundamentals of Multimedia

Fundamentals of Multimedia. Week 1 Introduction and Authoring Leila Sharifi UUT Fall 2011. History of Multimedia. Newspaper : perhaps the 1 rst mass communication medium uses text, graphics, and images.

zanna
Download Presentation

Fundamentals of Multimedia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fundamentals of Multimedia Week 1 Introduction and Authoring Leila Sharifi UUT Fall 2011

  2. History of Multimedia • Newspaper: perhaps the 1rst mass communication medium • uses text, graphics, and images. • Motion pictures: conceived of in 1830's in order to observe motion too rapid for perception by the human eye. • Wireless radio transmission: Guglielmo Marconi, at Pontecchio, Italy, in 1895. • Television: the new medium for the 20th century established video as a commonly available medium • The connection between computers and ideas about multimedia covers what is actually only a decade

  3. Hypermedia and Multimedia • A hypertext system: meant to be read nonlinearly, by following links that point to other parts of the document, or to other documents • HyperMedia: not constrained to be text-based, can include other media, e.g., graphics, images, and especially the continuous media- sound and video. • The World Wide Web (WWW) | the best example of a hypermedia application. hyper implies linking

  4. (…)Hypermedia and Multimedia Hypertext is nonlinear

  5. Multimedia Definition • Definition: to distribute and present information coded as Graphics, animation, audio and video (and text, ..) • By • Computer, TV, phone, etc. • A multimedia system is characterized by the integrated • production, • processing, • storage, • representation, • and transmission • of several time-dependent and time independent media streams.

  6. Why is Multimedia Hot? • Business Boom • Computer games (gross more money than movie industry 1997) • Media Companies: Google, Time Warner, Disney, … • Huge Market… • Convergence of computers, telecom, TV and … • Caused by technology and competition • Dramatic changes in products, infrastructure, etc. • Interesting technical issues (CS, EE, …) • Diverse (Potential) Applications • Potential for improving our lives (e.g., learning, entertainment, medicine, and work)

  7. Application Areas • hypermedia courseware • video-on-demand • TV (interactive , HDTV, …) • audio/video production • audio/video conferencing (GroupWare) • virtual worlds (VR& SR) • Augmented & Virtual Reality (Matrix!) • Web (web based seminars, …) • UI (3D, …)

  8. Reference Model

  9. Media Types • Time-Independent Media • Information is not related to timing of the data stream • All classic media in the computer, such as: • text • graphics (line drawings, vector graphic) • image (photo, pixel graphics) • Time-Dependent Media • Information is time-related, must be shown to the user at • specific points in time • Continuous data streams • Data appears in regular intervals • Examples: • Audio (continuous) • Video (continuous) • An animation (not a continuous stream, but time dependent) • An interactive game on the Internet (not a continuous stream, but has real-time requirements)

  10. Authoring

  11. What is an Authoring System? & Why? Authoring: • the process of creating multimedia applications What? • a program which has preprogrammed elements for the development of interactive multimedia software titles • some knowledge of heuristic thinking and algorithm design is necessary • speeded-up form of programming Why? • It generally takes about 1/8th the time to develop • Accelerated prototyping

  12. Multimedia Authoring Paradigms/Metaphors • the methodology by which the authoring system accomplishes its task Types: • Scripting Language metaphor • Special language to enable interactivity • OpenScript, … • Slide Show metaphor • Mostly Linear • PowerPoint • Hierarchical metaphor • Tree Structure • Menu Driven Apps • Iconic/Flow Control metaphor • Flowchart, rapid prototype • Macromedia Authorware • …

  13. Issues in Multimedia Applications Design Content Design • What to say, what vehicle to use?! five ways to format and deliver your message • Writing: Scripting • illustrating: Graphics • Wiggling: Animation • Hearing: Audio • Interacting: Interactivity

  14. Detail View • Scripting (writing) • Understand your audience and correctly address them. • Keep your writing as simple as possible. (e.g., write-out the full message(s) first, then shorten it.) • Graphics (illustrating) • Make use of pictures to effectively deliver your messages • "A picture is worth a thousand words.“ • Create your own (draw, (color) scanner,...), or keep "copy files" of art works. • Color Themes -- be consistent with the contents • Animation (wiggling) • "A leaf doesn't flutter if the wind doesn't blow.“ • Only animate when it has a specific purpose

  15. (…)Detail View • Audio (hearing) • Music - set the mood of the presentation, enhance the emotion, illustrate points • Sound effects - to make specific points • Narration - most direct message, often effective • Interactivity (interacting) • people remember 70% of what they interact with (according to late 1980s study) • Menu driven programs/presentations, Hypermedia, Simulations

  16. Technical Issues • Video Mode, Target Platforms, Resolution, and Max # Colors • Memory and Disk Space Requirement • Rapid progress in hardware alleviates the problem, but software is too "greedy", especially the multimedia ones. • Delivery • Live Presentation • Delivery by CD/DVD • Electronic Delivery (Netshow/Streaming-video, etc.)

  17. Authoring Tools • Image/Graphics Editing • Adobe Photoshop • Audio Editing • Cooledit • Video Editing • Adobe Premiere • Web Design • FrontPage • Dreamweaver • …

  18. Any Questions?!

More Related