LECTURE 1 INTRODUCTION TO MULTIMEDIA SCA3103 - Introduction to Multimedia Semester 2 - 02/03 LECTURE 1 INTRODUCTION TO MULTIMEDIA Lecture 1

Objective Definitions of multimedia What is multimedia? Multimedia Types Applications for Multimedia Developing Multimedia Project

What Is Multimedia ? Multi Media Multimedia Multi refer to many or multiple Media Vehicle or agent to convey for something Example: air for sound, writing for words Computer is a medium for ideas and information - Express and communicate these ideas - Store and manipulate information in many different forms

What Is Multimedia ? Multimedia Multimedia Systems Presentation of a computer application (usually interactive) Incorporating media elements such as text, graphics, video, animation and sound on a computer. Multimedia Systems encompass the computer and software systems that are used in multimedia environments Interactive control Distributed multimedia systems operate over some form of network infrastructure

The big picture Multimedia Systems Distributed Multimedia Systems Authoring Media asset management Tools Frameworks Image Text Speech Audio Video Network Virtual worlds Streaming video Web pages Streaming audio Client-server

Multimedia Computer System Characteristics Ability to convert any information in analog form e.g voice, music, video to digital form. It can control the Multimedia System and can be programmed by the programmer Interactive Random access (MM data)

4 Characteristics Multimedia Product Information present on a computer. Without this feature Polymedia or Mixed Media Links. Without this feature Book Navigation tools (icon, button, hot spot) Interactive presentation. Without this feature TV

A brief history of multimedia - Pong, Atari Apple, IBM and the PC revolution 1980’s - GUI’s and the mouse and other technologies 1990’s Multimedia Explosion - WWW - CD-I - Interactive books Future directions - Technology convergence, education and entertainment, other appliances

A brief history of multimedia World Wide Web Future Digital Audio and Video 1990 32 bit CD-ROM, Local and Wide Area Networking 16 bit processors Desktop Computer Graphical Operating Systems 1980 1970-an 8 bit processor

Modern multimedia PCs 3D graphics cards with 64 MB of graphics memory 64 note sound cards with wavetable synthesis 256 MB of main memory 60+ GB hard disk space 50+ speed CD readers 56 Kb/s modem or ISDN connection

Multimedia Types The main multimedia data types we will meet on this course are: - Images, video, audio, text, and animation We will also discuss how we capture this data... - capture = get it into the computer ...and render this data - render = display or play the information We will also find out about the hardware devices that are used to capture and render the data

Multimedia Applications Multimedia applications can be linear or interactive Linear multimedia plays from some start position to some end position with little or no intervention - Just like this lecture Interactive multimedia allows the viewer to jump around the material by interacting with it

Multimedia Industry Structure Content (Media) Applications (Software) Platforms (Hardware) Networking Level 1 Level 2 Level 3 Level 4

Multimedia Industry Structure Level 1 - Consists of MM content providers, for example the news industry, the television industry and the entertainment industry. Level 2 - Consists of multimedia application developers. - Applications include distance learning, desktop videoconferencing, multimedia kiosks, entertainment and imaging. Level 3 - Consists of MM platform builders. - These builders include Silicon Graphics, Sun, Intel, Apple, and other hardware vendors.

Multimedia Industry Structure Level 4 - The network infrastructure. - There are two very different networking environments that will use MM applications: - business networks and - the emerging public networks.

Multimedia Applications Types Corporate Functions MM Applications - Corporate Broadcasting - Executive Info. Systems - Multimedia Conferencing - Employee Info. Systems Communications - Corporate Training - Sales Training - Just-in-Time Training - Distant Training Training

Multimedia Applications Types Corporate Functions MM Applications - Design of TV Commercials - Interactive Advertising - Product Information Kiosks - Promotional Presentations - Customer Services - Virtual Reality Simulations Marketing - Product Catalogs - Portable MM Presentations - Merchandising Kiosks Sales

Multimedia Applications Types Corporate Functions Corporate Functions MM Applications MM Applications - Reference Systems - Simulations - Product Visualizations - Design Advisors Product Development - Diagnostics - Equipment Maintenance - Testing Procedures Manufacturing

Multimedia Applications Types Corporate Functions Corporate Functions MM Applications MM Applications - Multimedia File-Sharing - Multimedia Databases - Document Imaging - Productivity Systems - Decision Support Systems Administration - Home Networking - Home Shopping - Home Banking Home

Multimedia Applications Types Corporate Functions Corporate Functions MM Applications MM Applications Digital TV and Video on Demand (VoD) Videophones Video conferencing Online interactive transaction services. e.g. booking shows or flights - Video games Interactive Entertainment

Why Apply Multimedia Technology Ease of use Intuitive Interface Immersive Experience Self-Paced Interaction and Better Retention Better Understanding of the Content Cost Effectiveness More Fun = Greater Efficiency

Multimedia Development Input Output Process Apply effect filters and transforms Compress or decompress Convert between formats Present Save to a file Send across the network Capture from device Read from a file Receive over the network

Summary Today we have learned about the various aspects of multimedia: - multimedia data - multimedia applications - multimedia development Multimedia places more demands on the developer and hardware Multimedia aims to enhance the user’s experience

Next lecture... We will look at how Text and Fonts can be used in multimedia applications. The topic for … Chapter 2: Basic Multimedia Technology Chapter 3: Multimedia products Chapter 4: Applications and Multimedia Role in MSC Project Chapter 5: Hardware Components for Multimedia System …. The lectures is not given. Please read ….