Television – Bandwidth reduction system – Data rate reduction
Patent
1994-03-31
1997-08-12
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348403, 348415, H04N 736
Patent
active
056570864
ABSTRACT:
Picture signals are encoded so that one of a frame-based orthogonal transformation or a field-based orthogonal transformation is selected as a function of frame-based orthogonal-transformation coefficients and field-based orthogonal transformation coefficients. The coefficients representing the smallest quantity of data are selected and encoded for transmission. Alternatively, a picture signal is encoded so that one of intra-frame coding and inter-frame coding, as well as either a frame-based or field-based orthogonal transformation, are selected as a function of the respective orthogonal transformation coefficients.
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IEEE Transactions on Circuits and Systems for Video Technology vol. 1, No. 1, Mar. 1991, New York US pp. 4-13 Barbero et al `bit-rate reduction system for hdtv transmission`.
Obikane Nobuhisa
Tahara Katsumi
Au A.
Chin Tommy P.
Frommer William S.
Sinderbrand Alvin
Sony Corporation
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