Multimedia involves four key factors: digitization of audio and visual content, networking to exchange information over communication lines, interactivity through two-way communication, and diverse human interfaces. It is a collection of technologies used to manipulate text, graphics, audio, and video. Multimedia applications accept user input and perform actions in response through interactive links.

1. Multimedia System Text No. 1 Chapter 4

2. What is Multimedia? Multimedia is a medium that includes the following four factors: Digitisation Of audio, images and other information besides characters and numeric values, high-quality and easy-to-process information can be integrated and used. Networking Through the interconnection of computers using communication lines such as optical fiber, large amounts of information can be exchanged accurately at high speed. Interactivity As with the telephone, bi-directional interactive processing with a high response level can be performed. Inclusion of human interfaces Diverse types of information can be naturally and easily handled.

3. Multimedia

4. Multimedia Multimedia technology is not a single technology, but rather a collection of technologies for manipulating Text (characters, digits, symbols) Graphics (including images and animation) Audio Video

5. TEXT Characters that are used to create words, sentences, and paragraphs, is a fundamental element used in many multimedia applications. Different text sizes, fonts, colour or styles may be used to emphasis the text.

6. GRAPHICS A graphic, or graphic image or still graphical image, such as drawing, chart, or photograph.

7. ANIMATION Displays a series of still graphics in sequence to give the look of movement.

8. AUDIO Music, Speech, or any other sound.

9. VIDEO Photographic images played at speeds of 15 to 30 frames per second (RM, MPEG, AVI, ASF, DVIX formats)

10. LINKS Interactive Multimedia is a multimedia application that accepts input from the user by means of the keyboard or pointing device such as a mouse, and performs some action in response interactive links Amazon.com Microsoft USQ

11. Multimedia Services The services provided to the users of multimedia systems Application examples of multimedia service Business field Medical care field Publication field Education field Game field Interface technology Software production technology

12. Multimedia Education

13. Multimedia Entertainment

14. Multimedia Platform Hardware Display device Image scanner Video equipment Audio equipment Digital sound equipment Pointing device Storage medium Modem

15. Multimedia Platform Operating System GUI adoption Multi-task implementation Provision of network functions Provision of multimedia functions

16. Multimedia Platform Creation of multimedia titles Editing software Image Still image Animated image Audio Graphics Authoring tools Graphics drawing and editing Graphics painting and editing Image tools Audio/video tools HyperText Browser UI technology is based on HyperText standards

17. Multimedia Technology Artificial Intelligence (AI) Pattern recognition (OCR) Artificial Reality/Virtual Reality/ Computer Graphics (AR/VR/CG) Agent (knowledge base)

18. Agents/Bots

19. Multimedia Applications

20. Pattern recognition Voice pattern recognition Phoneme recognition processing – voice recognition, user-voice analysis Word recognition processing – online dictionary look-ups Language processing – ‘meanings’ attached to tone, diction, volume AI technology to exclude ‘dog words’ Image pattern recognition (OCR) Image input processing Image recognition preparation processing Noise elimination, data emphasis, colour adjustment Characteristics extraction processing Text versus graphics Language Partial recognition processing Candidate extraction Total recognition processing Candidate confirmation

21. Synthesis of voice and image Technology to create (synthesize) voices and images Voice synthesis technology Editing method (edits recorded voices and creates specified documents or conversations – disharmony sometimes apparent) Analysis method (analyse, encode and store as information, then stored – household appliances, elevators) Rule-based method (analyse and establish rules of patterns – change base tones) Image synthesis method Creation of the original picture (geometric representation, wire frame model, surface model) Shape change (correction in 3-dimensions) Image display (display in 3-dimensions, light source, shading, filtering and other adjustments)

22. Multimedia Application System Internet broadcasting Nonlinear image edit system Video tape editing – linear editing Softcopy editing – non-linear, data compression, previews Video-on-demand Full control of viewing on-the-fly (personalised viewing), not just channel switching Other application systems

23. Benefits of Multimedia Easy to understand and easy to use Integrated and interactive Conducive to cooperative work environment Flexible Supportive of large audience

24. IT Education and Multimedia

25. Congratulations!