1 TTM4142 Networked Multimedia Systems Introduction to Multimedia Leif Arne Rønningen Autumn 2008

2 The concept of multimedia Multi – many Media – ’something in the middle’ Means to ’shoot’, process, distribute, store, present and perceive information coded as –Video, audio, animation, graphics, text,,,

3 Definition A multimedia System is characterized by the integration of computer-controlled handling of independent discrete and continuous media

4 Continuous and Discrete media ’Continuous’ refers to the user’s perception of presented time-dependent data –Examples: Video, music, other audio, animated graphics Discrete media are time-independent data –Examples: Plain text, spreadsheet, still image, graphics

5 Human perception (from Wikipedia) The human sensory system is usually said to have six senses:sensory system Hearing is the sense of sound that comes into our ears.Hearingears Sight is the sense of seeing things with our eyes.Sighteyes Touch is the sense of feeling things with our skin.Touchskin Taste is the sense of the flavor of things with our tonguesTastetongues Smell is the sense of smelling things with our noses.Smellnoses Kinesthetic sense is knowing where your whole body is and where it is not.Kinestheticbody A valid seventh sense is the immune system's ability to detect invading virus and bacteria.immune system virusbacteria

6 7 minutes Cooperative Learning Form groups of 2-3 students Which of these systems are multimedia systems? –Television System –DVD player (playing a disc) –A movie –PC –Internet –Internet with Web –GSM mobile telephone system –A newspaper (with text and images) A one-minute report from groups