Metadata - Informational data about the data, included in a signal's data stream.
Time Search - Locates the precise position of recordings by elapsed time on a VCR.
Color Correction - The process of adjusting an image to compensate for scanner deficiencies or output device characteristics.
MHz (Megahertz) - A unit of measure for frequency that relates to the processing speed of a computer. Equal to one million hertz.
YPrPb - Color representation requires three independent variables. CRTs - prefer red, green, and blue. Ink jet printers prefer yellow, magenta, and cyan. NTSC encodes color as luminance (brightness), hue (color), and saturation (absence of white in colors). Storage media such as DVDs prefer Y, Pr, and Pb, where Y is luminance, Pr is Y-red, and Pb is Y-blue. This is because Pr and Pb can be at lower resolution and not degrade the image noticeably, thus saving storage space.
NTSC - (National Television System Committee technical standard) - This is analog TV invented in 1946. NTSC has 525 lines (483 visible) interlaced, 60 fields per second. This standard is in use in North America, Japan, South Korea, Burma, Taiwan, the Philippines, and much of South America.
HDTV (High-Definition Television) - A television system that incorporates 1000 or more horizontal lines of resolution (twice current standards) along with a wider aspect ratio and digital quality audio.
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