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31. Multimedia System


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31. Multimedia System

  1. 1. Multimedia System Text No. 1 Chapter 4
  2. 2. What is Multimedia? <ul><li>Multimedia is a medium that includes the following four factors: </li></ul><ul><ul><li>Digitisation </li></ul></ul><ul><ul><ul><li>Of audio, images and other information besides characters and numeric values, high-quality and easy-to-process information can be integrated and used. </li></ul></ul></ul><ul><ul><li>Networking </li></ul></ul><ul><ul><ul><li>Through the interconnection of computers using communication lines such as optical fiber, large amounts of information can be exchanged accurately at high speed. </li></ul></ul></ul><ul><ul><li>Interactivity </li></ul></ul><ul><ul><ul><li>As with the telephone, bi-directional interactive processing with a high response level can be performed. </li></ul></ul></ul><ul><ul><li>Inclusion of human interfaces </li></ul></ul><ul><ul><ul><li>Diverse types of information can be naturally and easily handled. </li></ul></ul></ul>
  3. 3. Multimedia
  4. 4. Multimedia <ul><li>Multimedia technology is not a single technology, but rather a collection of technologies for manipulating </li></ul><ul><ul><li>Text (characters, digits, symbols) </li></ul></ul><ul><ul><li>Graphics (including images and animation) </li></ul></ul><ul><ul><li>Audio </li></ul></ul><ul><ul><li>Video </li></ul></ul>
  5. 5. TEXT <ul><li>Characters that are used to create words, sentences, and paragraphs, is a fundamental element used in many multimedia applications. </li></ul><ul><li>Different text sizes, fonts, colour or styles may be used to emphasis the text. </li></ul>
  6. 6. GRAPHICS <ul><li>A graphic, or graphic image or still graphical image, such as drawing, chart, or photograph. </li></ul>                                                                                                                               
  7. 7. ANIMATION <ul><li>Displays a series of still graphics in sequence to give the look of movement. </li></ul>
  8. 8. AUDIO <ul><li>Music, Speech, or any other sound. </li></ul>
  9. 9. VIDEO <ul><li>Photographic images played at speeds of 15 to 30 frames per second (RM, MPEG, AVI, ASF, DVIX formats) </li></ul>
  10. 10. LINKS <ul><li>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 </li></ul><ul><ul><li>interactive links </li></ul></ul><ul><ul><li> </li></ul></ul><ul><ul><li>Microsoft </li></ul></ul><ul><ul><li>USQ </li></ul></ul>
  11. 11. Multimedia Services <ul><li>The services provided to the users of multimedia systems </li></ul><ul><li>Application examples of multimedia service </li></ul><ul><ul><li>Business field </li></ul></ul><ul><ul><li>Medical care field </li></ul></ul><ul><ul><li>Publication field </li></ul></ul><ul><ul><li>Education field </li></ul></ul><ul><ul><li>Game field </li></ul></ul><ul><ul><li>Interface technology </li></ul></ul><ul><ul><li>Software production technology </li></ul></ul>
  12. 12. Multimedia Education
  13. 13. Multimedia Entertainment
  14. 14. Multimedia Platform <ul><li>Hardware </li></ul><ul><ul><li>Display device </li></ul></ul><ul><ul><li>Image scanner </li></ul></ul><ul><ul><li>Video equipment </li></ul></ul><ul><ul><li>Audio equipment </li></ul></ul><ul><ul><li>Digital sound equipment </li></ul></ul><ul><ul><li>Pointing device </li></ul></ul><ul><ul><li>Storage medium </li></ul></ul><ul><ul><li>Modem </li></ul></ul>
  15. 15. Multimedia Platform <ul><li>Operating System </li></ul><ul><ul><li>GUI adoption </li></ul></ul><ul><ul><li>Multi-task implementation </li></ul></ul><ul><ul><li>Provision of network functions </li></ul></ul><ul><ul><li>Provision of multimedia functions </li></ul></ul>
  16. 16. Multimedia Platform <ul><li>Creation of multimedia titles </li></ul><ul><ul><li>Editing software </li></ul></ul><ul><ul><li>Image </li></ul></ul><ul><ul><ul><li>Still image </li></ul></ul></ul><ul><ul><ul><li>Animated image </li></ul></ul></ul><ul><ul><li>Audio </li></ul></ul><ul><ul><li>Graphics </li></ul></ul><ul><ul><li>Authoring tools </li></ul></ul><ul><ul><ul><li>Graphics drawing and editing </li></ul></ul></ul><ul><ul><ul><li>Graphics painting and editing </li></ul></ul></ul><ul><ul><ul><li>Image tools </li></ul></ul></ul><ul><ul><ul><li>Audio/video tools </li></ul></ul></ul><ul><ul><li>HyperText </li></ul></ul><ul><ul><ul><li>Browser UI technology is based on HyperText standards </li></ul></ul></ul>
  17. 17. Multimedia Technology <ul><li>Artificial Intelligence (AI) </li></ul><ul><li>Pattern recognition (OCR) </li></ul><ul><li>Artificial Reality/Virtual Reality/ Computer Graphics (AR/VR/CG) </li></ul><ul><li>Agent (knowledge base) </li></ul>
  18. 18. Agents/Bots
  19. 19. Multimedia Applications
  20. 20. Pattern recognition <ul><li>Voice pattern recognition </li></ul><ul><ul><li>Phoneme recognition processing – voice recognition, user-voice analysis </li></ul></ul><ul><ul><li>Word recognition processing – online dictionary look-ups </li></ul></ul><ul><ul><li>Language processing – ‘meanings’ attached to tone, diction, volume </li></ul></ul><ul><ul><li>AI technology to exclude ‘dog words’ </li></ul></ul><ul><li>Image pattern recognition (OCR) </li></ul><ul><ul><li>Image input processing </li></ul></ul><ul><ul><li>Image recognition preparation processing </li></ul></ul><ul><ul><ul><li>Noise elimination, data emphasis, colour adjustment </li></ul></ul></ul><ul><ul><li>Characteristics extraction processing </li></ul></ul><ul><ul><ul><li>Text versus graphics </li></ul></ul></ul><ul><ul><ul><li>Language </li></ul></ul></ul><ul><ul><li>Partial recognition processing </li></ul></ul><ul><ul><ul><li>Candidate extraction </li></ul></ul></ul><ul><ul><li>Total recognition processing </li></ul></ul><ul><ul><ul><li>Candidate confirmation </li></ul></ul></ul>
  21. 21. Synthesis of voice and image <ul><li>Technology to create (synthesize) voices and images </li></ul><ul><li>Voice synthesis technology </li></ul><ul><ul><li>Editing method (edits recorded voices and creates specified documents or conversations – disharmony sometimes apparent) </li></ul></ul><ul><ul><li>Analysis method (analyse, encode and store as information, then stored – household appliances, elevators) </li></ul></ul><ul><ul><li>Rule-based method (analyse and establish rules of patterns – change base tones) </li></ul></ul><ul><li>Image synthesis method </li></ul><ul><ul><li>Creation of the original picture (geometric representation, wire frame model, surface model) </li></ul></ul><ul><ul><li>Shape change (correction in 3-dimensions) </li></ul></ul><ul><ul><li>Image display (display in 3-dimensions, light source, shading, filtering and other adjustments) </li></ul></ul>
  22. 22. Multimedia Application System <ul><li>Internet broadcasting </li></ul><ul><li>Nonlinear image edit system </li></ul><ul><ul><li>Video tape editing – linear editing </li></ul></ul><ul><ul><li>Softcopy editing – non-linear, data compression, previews </li></ul></ul><ul><li>Video-on-demand </li></ul><ul><ul><li>Full control of viewing on-the-fly (personalised viewing), not just channel switching </li></ul></ul><ul><li>Other application systems </li></ul>
  23. 23. Benefits of Multimedia <ul><li>Easy to understand and easy to use </li></ul><ul><li>Integrated and interactive </li></ul><ul><li>Conducive to cooperative work environment </li></ul><ul><li>Flexible </li></ul><ul><li>Supportive of large audience </li></ul>
  24. 24. IT Education and Multimedia
  25. 25. Congratulations!