Presentation Topics CS 4763 Multimedia Systems

Multimedia When different people mention the term multimedia, they often have quite different, or even opposing, viewpoints –A PC vendor –A consumer entertainment vendor –A CS Student Multimedia and Computer Science

Components of Multimedia Multimedia involves multiple modalities of text, audio, images, drawings, animation, and video. Examples of how these modalities are put to use: –Video teleconferencing –Distributed lectures for higher education –Tele-medicine –Co-operative work environment –Searching in (very) large video and image databases for target visual objects –“Augmented” reality: placing real-appearing computer graphics and video objects into scenes

Components of Multimedia (continued…) Including audio cues for where video-conference participants are located Building searchable features into new video, and enabling very high- to very low-bit-rate use of new, scalable multimedia products Making multimedia component editable Building “inverse-Hollywood” applications that can recreate the process by which a video was made Using voice-recognition to build an interactive environment, say a kitchen-wall web browser

Multimedia History of Multimedia 1.Newspapers: perhaps the first mass communication medium 2.Motion Pictures (1830’s) 3.Wireless radio transmission (1895) 4.Television (20 th century)

History of Multimedia 5.The connection between computers and ideas about multimedia covers what is actually only a short period – A landmark article 1960 – hypertext 1967 – Architecture Machine Group was formed in MIT 1968 – On-line System (NLS), another very early version of hypertext program 1969 – FRESS: a hypertext editor 1976 – Multiple Media 1985 – MIT Media Lab 1989 – World Wide Web first proposed 1990 – Apple Multimedia Lab 1991 – MPEG-1 was approved as an international standard for digital video – led to the newer standards 1991 – PDA 1992 – JPEG was accepted as the international standard for digital image compression 1992 – MBone first audio multicast on the Net was made 1993 – NCSA Mosaic – the first full-fledged browser 1994 – Netscape 1995 – JAVA language was created for platform-independent application development 1996 – DVD video 1998 – XML – Hand-held MP3 devices 2008 – WWW size estimated over billions pages

Current Research Many exciting research projects are currently underway. Here are a few of them: –Camera-based object tracking technology –3D motion capture –Multiple views –3D Capture technology –Specific multimedia applications –Digital fashion –Electronic Housecall systems –Augmented Interaction applications

Overview of Multimedia Software Music Sequencing and Notation Digital Audio Graphics and Image Editing Video Editing Animation Multimedia Authoring

Selected Topics Google Earth Mobile Search MPEG Video Production Video Game Digital Right Management New User Interface : Vista vs. Beryl Adobe Flash HDTV Interactive Television …