1 / 45

G0Q55A Multimedia: modelleren en programmeren

G0Q55A Multimedia: modelleren en programmeren. Martin Wolpers & Erik Duval 5 Oktober 2007. Questions so far?. Some remarks: Nice work! BUT Publish your storyboard! Explain and document!. Today!. Group presentations Quality and Evaluation Criteria MM Modelling Formalization

ardelle-york
Télécharger la présentation

G0Q55A Multimedia: modelleren en programmeren

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. G0Q55A Multimedia: modelleren en programmeren Martin Wolpers & Erik Duval 5 Oktober 2007 G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  2. Questions so far? • Some remarks: • Nice work! BUT • Publish your storyboard! • Explain and document! G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  3. Today! • Group presentations • Quality and Evaluation Criteria • MM Modelling Formalization • Timeline and Sequences • Layout and Presentation • Flash and Interactivity G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  4. Group Presentations • Groep 1 • Simon Wouters • Laurent Verbruggen • Dries Geebelen • Ben Raes • Groep 4 • Bart Timmermans • Tine Vangansewinkel • Rob Vanden Broucke • Jef Maerien G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  5. Evaluation and Quality Criteria Multimedia-Information are • Symbolic forms of expressions • Symbolic knowledge G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  6. Our Criteria • Easy to understand • Clear presentation • Not too extensive • Structured Navigation • User control • Media Relevant to subject • Media constistent with visual style • Focus group • Media type constistent • Syncronized media • Not too much media • User Satisfaction G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  7. From your wiki pages: • Presentation and interaction • Attractiveness • User friendly • Usability • Clear information presentation • Clear navigation • Clear structure • Completeness • Implementation • Focus groups G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  8. MM Criteria • Objective of the system • Focus group and Motivation • Suitability • Stimulate cognitive constructions • Quality and Suitability • Media • Media Mix • Media parts • (Inter-)Activity • Multi-sensor impression on the user • (Multimodal) Interaction through user interface • Information Presentation • Representation of interpretable information • Navigation and Structure G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  9. Media Theories • Semantic knowledge is not media neutral Example YouTube: http://www.youtube.com/ • Personalisation and Adaptation Example Amazon: http://www.amazon.com/ • Spatial Localisation Example Hotel Mappers: http://hotel.mappers.info/map.html?Leuven G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  10. Synchronisation, Timeline and Sequence G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  11. Synchronisation Establishing a defined temporal dependcy between several MM objects Audio 1 Audio 2 Img 1 Img 2 Img 3 Video 1 Animation 1 Time G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  12. Fine granular sync • Necessary is • Access to start and end • Access into the complex MM object  decomposition of complex MM objects E.g. uncompressed video = image stream (sequence) + audio G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  13. Examples • Lip synchronisation • Constraints: audio and video max. 80ms earlier • Slide show <80ms G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  14. Inacurate sync Tolerable as human perception is not perfect! G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  15. Modelling Sync G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  16. Timeline approach • All events are aligned on a time axes • All events are totally ordered • Only basic interval relations {<, =, >} G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  17. Timing Constraints T[s] Upper bound; equiv. to [0;0.2] Lower bound: min X; equiv. To [0.3;∞] Duration of time interval through upper and lower bound specification Precise specification of duration of time interval 0 max 0.2 [0.2;0.5] 2:10 0:25 G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  18. Complex Activitations Composed activation • Multiple parallel presentations Animation activation • Auto triggering of sequence of activations :Audio :Anim L R Img1.gif Img2.gif WavL.wav WavR.wav Img3.gif Img4.gif Img5.gif G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  19. More… • Media filters • Parameterization • Starting time • Links • Execution choice points • Timing tolerance • Activation Delay • Deactivation Delay Fade in Permanent 50% Fade out G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  20. Extended Sequence Diagrams G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  21. Layout • See Erik Duval‘s course on Human Computer Interaction Here: Use common sense! G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  22. Presentation Diagrams • Spatial presentation • Visualization elements • Interaction elements • Stereotypes for basic GUI elements • Hierarchical composition • Audio elements G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  23. Flash and Interactivity • Flash: highly available • Flash plays in 98% of all browsers • WWW based • Simple to use authoring environment • CS2 or CS3 • Flexible usage • Used for Advertisement • Video Conferencing • eLearning • Etc. G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  24. Flash Player stats • Installed on >600 Mio Computers • >98% of all web-connected computers • >2 Mio installs per day • New player reaches 80% of computers in 12 months G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  25. Flash Platform G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  26. Flash Usage • Content: combine video and interactivity • Applications: desktop as web applications G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  27. Flash Usage cont‘d • Communication • Streaming audio/video in both directions • E.g. Flashmeeting • Mobile G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  28. Flash Platform Architecture G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  29. Flash Player • Virtual engine for Action ScriptAction Script: JavaScript like procedural language for event-driven application control • Display engine • Based on vector graphics • Integrates blended video • 2-way audio/video • Sandbox model for Privacy and Security G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  30. Flash player cont‘d • Networking via Internet (http, https, sockets) G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  31. Timeline Stage Object Library Actions G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  32. Why your design makes sense! Timeline = Extended Sequence Diagram Object Library =Class/Object Diagram Stage =Presentation Diagram Actions = State Diagram G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  33. Extended Sequence Diagram Presentation Diagram Class/Object Diagram State Diagram G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  34. The example G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  35. What have you seen? G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  36. Let‘s see how this is done… • Live (very simple) demo • 2 images • 1 video file • 3 texts G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  37. Class Diagram G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  38. Extended Sequence Diagram G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  39. Presentation Diagram G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  40. State Diagram Not Necessary!!! G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  41. State Diagram??? • State Diagrams model MM application behaviour • Labeled directed graph (finite state machine) • States (start, end, other) • Edges (transitions from one state to the other) • Conditions for transitions • Input and Output values • Literature: • http://atlas.kennesaw.edu/~dbraun/csis4650/A&D/UML_tutorial/state.htm • http://www.visual-paradigm.com/VPGallery/diagrams/State.html G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  42. Soda Machine Example Steps to get some Soda (machine perspective) • Get insert money • Show amount of money • Get selection of soda or refund • Dispense soda • Dispense change if any G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  43. State Diagram Example Soda Machine State Diagram thanks to SUN: http://developers.sun.com/jsenterprise/reference/techart/jse8/umlStateDiag.html G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  44. Assignment for today • Finish storyboard • Prepare State Diagram of your application • Implement application in Flash • Document sources • Follow storyboard • Provide readme outlining used time and tools • Upload to wiki 17 Oktober sharp ! • Don‘t hesitate to ask! G0Q55A – Multimedia: modelleren en programmeren 2007/2008

  45. Action Script • Help is on the way: • http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/js/html/wwhelp.htm?href=Part1_Programming_AS3_1.html • http://www.flashfocus.nl/forum/showthread.php?t=6338 G0Q55A – Multimedia: modelleren en programmeren 2007/2008

More Related