Multimedia Systems

1
Multimedia Systems

• CSE 228F
• Amarnath Gupta
• gupta_at_sdsc.edu

2
Some Course Details

• Course home page http//www.sdsc.edu/gupta/CSE228
  F.html
• References
• Networked Multimedia Systems by S.V. Raghavan and
  S.K.Tripathi
• The MPEG homepage http//drogo.cselt.stet.it/ufv/
  leonardo/mpeg/
• Multimedia Information Systemsby V. S.
  Subrahmanian (Editor), S. K. Tripathi (Editor)
• Programming references
• Java Media API
• http//www.javasoft.com/products/java-media/jmf/in
  dex.html
• Java Advanced Imaging API
• http//www.javasoft.com/products/java-media/jai/
  index.html

3
What is Multimedia?

• Multimedia a working definition
• A combination of two or more categories of
  information having different transport signal
  characteristics
• Typically, one medium is a continuous medium
  while another is discrete
• Image, audio, video and graphics are examples of
  media

4
Images

• Some Issues
• Is the image as high-quality as I need?
• Is the image efficiently stored and transmitted?
• Can the image be retrieved by its content?

5
Videos

• Some issues
• How are the temporal relations between the media
  represented?
• What do I need to stream video across the
  network?
• Are the different media synchronized?
• How can I describe a video retrieval request like
  a query?

6
What is a Multimedia System?

• A system that involves
• generation
• representation
• storage
• transmission
• search and retrieval
• delivery
• of multimedia information

• production/authoring tools
• compression and formats
• file system design
• networking issues
• database management
• server design, streaming

7
A Course-on-Demand System
On-line facilitator
Courseware developer
Network
Multimedia Database
Database server
user
8
A Course-on-Demand System
Metadata DB
Authoring Tool
Java Client
Network
Server
DB Application
Integration Software
User Interface
Media Server
9
A Media-on-Demand System

• A real system
• Praja Event Experience
• Praja Concert
• Praja Football