Multimedia Data Delivery

1. Web Applications
and
Multimedia Data Delivery
By Prof. J.P. Cosmas
&
Dr M. Li

2. Preliminaries
 Lecture each week:
 3.00 pm - 5.00 pm on Thursday in room H 310
 Seminar on odd weeks
 10.00 am - 11.00 am on Friday in room H310
 Assessment for Multimedia Data Delivery part
 ½ of 3 hour examination answering at least 2 out of 4 questions
(50%) from MMDD part and 5 questions out of 8 in total
 Lecturer available in
 John Cosmas room 209 of Howell Building
 Course notes available on
 www.brunel.ac.uk/~eestjpc/MMDataDelivery

3. Course Content
 Introduction
 Image and Video Representation
 Data Coding
 Audio Coding
 Image Coding
 Video Coding
 MPEG-4 Audio, Video, Graphics
 Multimedia Conferencing
 MPEG-7 – metadata for describing media
 Networks from Multimedia Service Perspective
 Telecom
 POTS/PSTN, ISDN, ATM
 GSM, GPRS, UMTS/IMT2000
 Broadcast
 DVB, ISDB, ATSC

4. Course Book: “Digital Compression for Multimedia“
Author: J. Gibson, T. Berger, T. Lookabaugh, et al
Publisher: Morgan Kaufmann Publishers, Inc.

5. Course Book: “Videoconferencing & VideoTelephony“
Author: R. Schaphorst
Publisher: Artech House Publishers, Inc.

6. Course Book: “Techniques & Standards for Image,
Video and Audio Coding“
Author: K.Rao, J. Hwang; Publisher: Prentice Hall

7. Course Book: “Standard Codecs: Image Compression
to Advanced Video Coding“
Author: M. Ghanbari; Publisher: IEE

8. What is Hypertext?
 Hypertext is a text which contains links to other
texts. Hypertext is therefore usually non-linear (as
indicated below).

9. What is Hypermedia?
 HyperMedia is not constrained to be text-based. It
can include other media, e.g., graphics, images,
and especially the continuous media -- sound and
video. The World Wide Web (WWW) is the best
example of hypermedia applications.

10. What is Multimedia?
 Multimedia means that computer information can be
represented through audio, video, and animation in addition to
traditional media (i.e., text, graphics drawings, images).
Hypermedia can be considered as one of the multimedia
applications.
 Examples of Multimedia Applications
 Digital video editing and production systems
 Electronic Newspapers/Magazines
 Games
 Groupware
 Home shopping
 Interactive TV
 Multimedia courseware
 Video conferencing
 Video-on-demand
 Virtual reality

11. Multimedia Authoring: Types
 Authoring -- the process of creating multimedia applications
 Authoring metaphor, also known as authoring paradigm, is
the methodology for authoring multimedia applications.
 Scripting Language
 Slide Show
 Hierarchical
 Iconic/Flow-control
 Card/Scripting
 Cast/Score/Scripting

12. Multimedia Authoring: Types
 Scripting Language
 use a special language to enable interactivities (button, mouse, etc),
and to allow conditionals, jumps, loops, functions/macros. e.g.,
OpenScript in Toolbook by Asymetrix
 Slide Show
 a linear presentation e.g., PowerPoint, ImageQ
 Hierarchical
 organized into a tree structure; seen often in menu-driven
applications

13. Multimedia Authoring: Types (cont)
 Iconic/Flow-control
 graphical icons and flow chart to help authoring e.g., Authorware by
Macromedia
 Card/Scripting
 index-card structure, good for hypertext/hypermedia e.g.,
SuperCard, HyperCard by Apple
 Cast/Score/Scripting
 with cast members, music scores, and scripting language; many
synchronous horizontal "tracks" simultaneously shown in vertical
columns; e.g., Director by Macromedia (it uses Lingo as its scripting
language)