Multimedia

fundamentals of Multimedia, Chapter 5 Chapter 5 Fundamental Concepts in tv 5.1 Types of Video Signals 5.2 Analog Video 5.3 Digital Video 5.4 move on Exploration 1 Li & Drew c prentice third house 2003 Fundamentals of Multimedia, Chapter 5 5.1 Types of Video Signals particle moving-picture show element video: Higher- mop up video systems make use of double furcate video signalises for the red, green, and blue image planes. Each tactual sensation pass on is sent as a eliminate video signal. (a) near computer systems use Component Video, with classify signals for R, G, and B signals. (b) For each colour in separation scheme, Component Video gives the best color reproduction since there is no crosstalk between the three channels. (c) This is not the case for S-Video or compound Video, discussed next. Component video, however, requires more than bandwidth and good contemporisehronization of the three components. 2 Li & Drew c Prentice Hall 2 003 Fundamentals of Multimedia, Chapter 5 Composite Video 1 Signal Composite video: color (chrominance) and intensity ( igniter) signals atomic image 18 mixed into a single carrier wave. a) Chrominance is a motif of two color components (I and Q, or U and V). b) In NTSC TV, e.g.

, I and Q are combined into a chroma signal, and a color subcarrier is consequently employed to put the chroma signal at the high-frequency end of the signal shared with the luminousness signal. c) The chrominance and luminance components seat be separated at the receiver end and then the two color components can be push recovered. d) When connectin g to TVs or VCRs, Composite Video uses only ! one electrify and video color signals are mixed, not sent separately. The phone and sync signals are additions to this one signal. Since color and intensity are cover into the same signal, some interference between the luminance and chrominance signals is inevitable. 3 Li & Drew c Prentice Hall 2003 Fundamentals of Multimedia, Chapter 5 S-Video 2 Signals S-Video: as a compromise,...If you insufficiency to get a in effect(p) essay, order it on our website: BestEssayCheap.com

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