Chapter 2 Multimedia Systems, Study notes of Multiagent Systems

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INTRODUCTION TO MULTIMEDIA

Chapter 2

Multimedia Systems

Definition of Multimedia

System

A Multimedia System is a system capable of

processing multimedia data

and applications. It is characterized by the processing, storage, generation, manipulation and rendition of Multimedia information.

Characteristics of a

Multimedia Systems

A Multimedia systems has four basic

characteristics:

 Multimedia systems must be computer

controlled.

 Multimedia systems are integrated.

 The information they handle must be

represented digitally.

 The interface to the final presentation of media

is usually interactive.

Characteristics of a

Multimedia Systems

Computer Controlled

 Producing the content of the information – e.g. by using the authoring tools, image editor, sound and video editor

 Storing the information – providing large and shared capacity for multimedia information.

 Transmitting the information – through the network.

 Presenting the information to the end user – make direct use of computer peripheral such as display device (monitor) or sound generator (speaker).

Characteristics of a

Multimedia Systems

Interactivity

 Level 1 : Interactivity strictly on information delivery. Users select the time at which the presentation starts, the order, the speed and the form of the presentation itself.

 Level 2 : Users can modify or enrich the content of the information, and this modification is recorded.

 Level 3 : Actual processing of users input and the computer generate genuine result based on the users input.

Characteristics of a

Multimedia Systems

Digitally Represented

 Digitization: process involved in transforming an

analog signal to digital signal.

Desirable Features for a

Multimedia System

 Very High Processing Power

 Multimedia Capable File System

 Data Representations/File Formats that

support multimedia

 Efficient and High I/O

 Special Operating System

 Storage and Memory

 Network Support

 Software Tools

Components of a

Multimedia System

Capture Devices

• Video Camera
• Video Recorder
• Audio Microphone
• Keyboards
• Mice
  • Graphics tablets
  • 3D input devices
  • Tactile sensors
  • VR devices
  • Digitizing/Sampling Hardware

Components of a

Multimedia System

Communication Networks

• Ethernet
• Token Ring
• Fiber Distributed Data Interface (FDDI)
• Asynchronous Transfer Mode - Intranets - Internets

Components of a

Multimedia System

Computer Systems

• Desktop computer
• Processor
• RAM
• Display card
  • Sound card
  • Capture card

Class Activity

Exercise

Group discussion. You are require to set up a Multimedia

Systems. Identify the components and budget to set up

the system. Present to the class.