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standard definition television (SDTV)

This term is used to signify a digital television system in which the quality is approximately equivalent to that of NTSC. This equivalent quality may be achieved from pictures sourced at the 4:2:2 level of ITU-R Recommendation 601 and subjected to processing as part of the bit rate compression. The results should be such that when judged across a representative sample of program material, subjective equivalence with NTSC is achieved. Also called standard digital television. See also conventional definition television and ITU-R Recommendation 1125.

Source: 53, 54

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ATSC, The Broadcast Standards Association, is defining the future of broadcast around the world with the Internet Protocol-based ATSC 3.0 next-generation standard. ATSC is an international, non-profit organization developing voluntary multimedia standards. ATSC member organizations represent the broadcast, professional services and equipment, motion picture, consumer technology, computer, cable, satellite, and semiconductor industries.

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