Intro to Multimedia Systems

Intro to Multimedia Systems

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  IT31 – MultimediaSystemsPrepared by: Ocirne Jun-Jun S. Liwanag
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  What is Multimedia?Multimediais media and content that uses a combination of different content forms. Multimedia includes a combination of text, audio, still images, animation, video, and interactivity content forms.
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  Multimedia Application isan Application which uses a collection of multiple media sources e.g. text, graphics, images, sound/audio, animation and/or video.
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  What is HyperTextand HyperMedia?Hypertext is a text which contains links to other texts. (e.g. PDF Documents, Word Documents) HyperMedia is not constrained to be text-based. It can include other media, e.g., graphics, images, and especially the continuous media - sound and video. (e.g. WWW)
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  MULTIMEDIA SYSTEMSA MultimediaSystem is a system capable of processing multimedia data and applications.
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  Characteristics of aMultimedia SystemMultimedia systems must be computer controlled.Multimedia systems are integrated.The information they handle must be represented digitally.The interface to the final presentation of media is usually interactive.
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  Components of aMultimedia SystemCapture devicesVideo Camera, Video Recorder, Audio Microphone, Keyboards, mice, graphics tablets, 3D input devices, tactile sensors, VR devices. Digitizing/Sampling Hardware Storage DevicesHard disks, CD-ROMs, Zip drives, DVD, etc Communication NetworksEthernet, Token Ring, FDDI, ATM, Intranets, Internets.
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  Components of aMultimedia System (2)Computer SystemsMultimedia Desktop machines, Workstations, MPEG/VIDEO/DSP Hardware Display DevicesCD-quality speakers, HDTV,SVGA, Hi-Res monitors, Color printers etc.
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  Examples of MultimediaApplications include:World Wide WebHypermedia coursewareVideo conferencingVideo-on-demandInteractive TVGroupwareHome shoppingGamesVirtual realityDigital video editing and production systemsMultimedia Database systems
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  CATEGORIZATION OF MULTIMEDIALinearactive content progresses without any navigation control for the viewer such as a cinema presentation. Non-linear content offers user interactivity to control progress as used with a computer game or used in self-paced computer based training.
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  ELEMENTS OF MULTIMEDIAText- Displays word on the screen – is the base layer of almost all programs. Text is still the quickest programs will always use it.Pictures - Multimedia computers can display photograph quality pictures on the monitor.Movies - With a multimedia program, your computer can turn into a TV set.
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  ELEMENTS OF MULTIMEDIAAnimation- Sometimes animation can express a point better than movies.Sound - A biting dinosaur isn’t much impressive unless you can hear the bone crunches well.