Global Structure and Media in Multimedia - PowerPoint PPT Presentation

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Global Structure and Media in Multimedia

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Title: Global Structure and Media in Multimedia


1
Multimedia
  • Mr. BIMAL KUMAR RAY
  • DEPT OF I.S.T
  • RAVENSHAW UNIVERSITY

2
Multimedia Objectives
  • Multimedia data representation
  • Multimedia data processing
  • Multimedia data compression
  • Multimedia data transmission
  • Multimedia mobile games
  • Multimedia data security
  • Multimedia human computer interaction

3
Importance of Multimedia
  • There are a number of fields where multimedia
    used. Examples are
  • Business
  • Education
  • Entertainment
  • Public Places
  • Medical Science
  • Home Shopping
  • Games
  • Industry and Engineering
  • Mathematical and Scientific Research
  • Journalism and mass communication

4
What is Multimedia?
  • Multimedia technology is not a single technology,
    but rather a collection of technologies for
    manipulating.
  • Derived from the word Multi and Media
  • Multi means many, much, multiple
  • Media
  • Media is something that can be used for
    presentation of information.
  • Tools that is used to represent or do a certain
    things, delivery medium, a form of mass
    communication newspaper, magazine / tv.
  • Distribution tool information presentation
    text, graphic, voice, images, music and etc.

5
Definition of Multimedia
  • A combination of two or more categories of
    information having different transport signal
    characteristics.
  • Multimedia is a combination of text, graphic,
    sound, animation and video that is delivered
    interactively to the user by electronic or
    digitally manipulated.
  • Multimedia is usually recorded and played,
    displayed by information content processing
    devices, such as electronic devices, but can also
    be part of a live performance.

6
Definition of Multimedia
  • A multimedia project development or a web site
    requires creative, technical, organizational, and
    business skills.
  • Multimedia becomes interactive multimedia when a
    user is given the option of controlling the
    elements.
  • Interactive multimedia is called hypermedia when
    a user is provided a structure of linked elements
    for navigation.
  • Multimedia projects can be linear or nonlinear.

7
Need (elements) for Multimedia
8
TEXT
  • A broad term for something that contains words to
    express something.
  • Text is the most basic element of multimedia.
  • 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.

9
GRAPHICS
  • A graphic, or graphic image or still graphical
    image, such as drawing, chart, or photograph.
  • Used in multimedia to show more clearly what a
    particular information is all about (diagrams,
    picture).
  • Produced manually (by drawing, painting etc.) or
    by computer graphics technology.

10
ANIMATION
  • The illusion of motion created by the
    back-to-back display of images of static
    elements.
  • Displays a series of still graphics in sequence
    to give the look of movement.
  • animation is used to further enhance the
    experience of the user to further understand the
    information conveyed to them.

11
AUDIO
  • Produced by vibration, as perceived by the sense
    of hearing.
  • In multimedia, audio could come in the form of
    speech, sound effects and also music score.

12
Video
  • Is the technology of capturing, recording,
    processing, transmitting, and reconstructing
    moving pictures.
  • Video is more towards photo realistic image
    sequence / live recording as in comparison to
    animation.
  • Video also takes a lot of storage space. So plan
    carefully before you are going to use it.

13
What is a Multimedia System?
  • A system that involves
  • generation
  • representation
  • storage
  • transmission
  • search and retrieval
  • delivery
  • of multimedia information
  • production/authoring tools
  • compression and formats
  • file system design
  • networking issues
  • database management
  • server design, streaming

14
On-line facilitator
developer
Network
Multimedia Database
Database server
user
15
Global Structure
  • A Multimedia System is a system capable of
    processing multimedia data and applications.
  • A Multimedia System is character wise by the
    computer-controlled, integrated production,
    processing, storage, generation, manipulation and
    encoded of Multimedia information.
  • A Multimedia system has four basic
    characteristics
  • Multimedia 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

16
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17
Global Structure
  • 1. Device Domain
  • Device domain basic concepts and skill for
    processing various multimedia elements and for
    handling physical device.
  • Basic concepts for the processing of images,
    animation, audio and video data are based on
    digital signal processing.
  • The audio techniques section includes music
    (MIDI) and speech processing.
  • The understanding of video techniques is built
    mainly on TV development, including digital
    representation and HDTV.
  • The current quality requirements and available
    technology, corresponding compression methods.

18
Global Structure
  • 2. System Domain
  • The interface between the device domain and the
    system domain is specified by the computer
    technology . To utilize the device domain,
    several system services are needed
  • System domain including all supports for using
    the functions of the device domain that is
    operating systems, communication systems
    (networking) and database systems.
  • Database System allows a structured access
    to data a management of large database.
  • Operating System interface between computer
    hardware with system software and all other
    software components. ( network, memory,
    processor, input/output devices etc)
  • Communication System data transmission according
    to the timing and reliability requirements of the
    networked multimedia application.

19
Global Structure
  • 3. Application Domain
  • The services of the system domain are offered to
    the application domain through proper programming
    abstractions .
  • Application domain provides functions to the user
    to develop and present multimedia projects. This
    includes Software tools, and multimedia projects
    development methodology.
  • A document consists of a set of structural
    information, represented in different media, and
    generated or recorded at the time of
    presentation.
  • Many functions of document handling and other
    applications are accessible and presented to the
    user through a user interface .

20
Global Structure
  • 4.Cross Domain
  • Compositions must allow any type of logical
    structure besides those ones for synchronization
    (presentation) purposes.
  • Multimedia involves multiple elements of text,
    audio, images, drawings, animation, and video.
  • provides the ability to manually or automatically
    access or transfer information between two or
    more different domains.
  • Synchronization are difficult to locate in one or
    two components or domains.
  • Synchronization the temporal relationship among
    various media, relates to many components across
    all domains.

21
Media and Data Streams
  • Media means for distribution and presentation of
    information.
  • A media are text,image,graphics, music and video
    etc.
  • Data Stream is any sequence of individual packets
    transmitted in a time-dependent fashion.
  • Packets can carry information of either
    continuous
  • (time-dependent) or discrete
    (time-independent) media.
  • Media can be classified with respect to different
    criteria according to perception, representation,
    presentation, storage, transmission and
    information exchange medium.

22
Perception Medium
  • Perception medium refers to the nature of
    information perceived by humans, which is not
    strictly identical to the sense that is
    stimulated.
  • For example, a still image and a movie convey
    information of a different nature, though
    stimulating the same sense.
  • The question to ask here is How do humans
    perceive information in a computer?
  • What we see and what we hearing information. The
    perception of information through hearing,
    auditory media include music, sound, noise and
    voice.
  • Perception of information through seeing the
    visual media include text, graphics, still image
    and moving pictures consist of a series of scenes
    .

23
Representation Medium
  • The term representation media refers to how
    information is represented internally to the
    computer.
  • The encoding used is of essential importance.
  • The question to ask here is How is information
    encoded in the computer ?
  • There are several options
  • Each character of a piece of text is encoded in
    ASCII.
  • A single image is encoded as JPEG,TIFF,PSD etc
    format.
  • A picture is encoded by the CEPT graphics
    standard.
  • An audio data stream is available in simple PCM.
  • A combined audio-video sequence can be coded in
    defferent TV standard PAL, SECAM, NTSC in MPEG
    format.

24
Presentation Medium
  • The term presentation medium refers to the
    physical means used by systems to reproduce
    information for humans.
  • Presentation media refer to the tools and devices
    for I/O of information.
  • For example, a TV set, monitor, printer, paper
    speaker etc.
  • The question to ask here is Which medium is used
    to output information from the computer or input
    in the computer?
  • Media such as TV, monitor, printer and speakers
    are output media, while keyboard, mouse, camera
    and microphone are input media.

25
Storage Medium
  • The storage medium is used in computing to refer
    to various physical device means for storing
    computer data, such as harddisk, magnetic
    disk/tapes, pendrive, compact disk, or digital
    optical disk.
  • Data storage is not limited to the components
    available in a computer, and paper is also
    storage medium.
  • The question to ask here is Where is information
    stored?

26
Transmission Medium
  • The transmission media different data storage
    and continuous information transmitted over
    networks.
  • for example electronic mailing systems
  • The transmission medium refers to the physical
    means cables of various types, radio tower,
    satellite, or ether (the medium that transmit
    radio waves) that allow the transmission of
    telecommunication signals.
  • The question to ask here is Which medium is used
    to transmit data?
  • The information is transmitted over networks,
    which use wired cable transmission such as
    coaxial cable , fiber optical, wireless as well
    as free air space transmission.

27
Information Exchange Medium
  • Information exchange medium include all data
    media used to transport information that is all
    storage and transmission media.
  • The question to ask here is Which data medium is
    used to exchange information between different
    locations?
  • For example, information can be exchanged by
    storing it on a removable medium and transporting
    the medium from one location to another.
  • These storage media include microfilms, paper,
    and floppy disks. Information can also be
    exchanged directly, if transmission media such as
    coaxial cables, optical fibers, or radio waves
    are used.

28
Multimedia in Education
  • Interactive multimedia in education and training
    program to share information and knowledge on the
    research and practices.
  • Similar to textbook or training manuals but have
    added media such as audio, animation and video.
  • Multimedia include presentations training,
    marketing, advertising, product demos, databases,
    catalogues, instant messaging, and networked
    communication.
  • Use and Applications
  • E-Learning / Distance Learning
  • Audio video classes
  • Information Searching

Fundamentals of Multimedia Dept of IST,
Ravenshaw University
9/19/2019
28
29
Multimedia Hardware
  • Input Devices (Keyboards, Mice, Digital Cameras,
    MIDI Keyboards, Touch Screens, Trackballs,
    Scanner , Voice Recognition Systems, Magnetic
    Card Encoders and Readers, Tablets etc.)
  • Output Devices (Monitors, Speakers, Printer,
    Projector, Video Devices)
  • Storage Devices (CD-ROM Drives, Pen drive,
    Magneto-optical drives, Communication devices,
    Modems etc.)

Fundamentals of Multimedia Dept of IST,
Ravenshaw University
9/19/2019
29
30
Multimedia Software Products
  • Text Editing Software
  • Painting and Drawing Software
  • 2D/3D Drawing Software
  • Photo Editing Software
  • Sound Editing Software
  • Digital Video Editing Software
  • Animation Creating Software

Fundamentals of Multimedia Dept of IST,
Ravenshaw University
9/19/2019
30
31
THANK YOU
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