Global Structure and Media in Multimedia

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Multimedia

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

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Multimedia Objectives

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

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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

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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.

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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.

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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.

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Need (elements) for Multimedia
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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.

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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.

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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.

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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.

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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.

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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

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On-line facilitator
developer
Network
Multimedia Database
Database server
user
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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

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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.

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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.

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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 .

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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.

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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.

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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
  .

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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.

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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.

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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?

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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.

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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.

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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
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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
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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
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THANK YOU