Definition of Terms, continued
Video Technology
VIDEO SIGNAL
OPTIONS
BUILDING THE VIDEO PICTURE
Video Signal
A signal which includes all the information present in the video pic- ture. There are three basic elements in a video picture: color, bright- ness, and synchronization data.
Chrominance (C or Chroma). The color portion of a video
signal.
Luminance (Y, Brightness, or Luma). The monochrome
portion of a video signal.
Component Video Signal (3 Signals)
Three separate signals transmit: luma (Y), blue minus luma
YPbPr (or PrPbY). One way to designate the three signals used in component video. Y = the luma signal, Pb = the blue minus luma
S-Video Signal (2 Signals)
Two separate signals transmit the luma (Y) and chroma (C).
Composite Video Signal (1 Signal)
One signal transmits luma (Y) chroma (color), and synchronization data.
Interlaced (standard) signals build the video picture in two passes.
Progressive signals build the video picture in one pass. This tech- nology eliminates motion artifacts and produces
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