Encoding method and decoding method of color signal component of

Television – Bandwidth reduction system – Data rate reduction

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348395, H04N 1104

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active

054124280

ABSTRACT:
In an encoding and decoding method of color signal components of picture signals having a plurality of resolutions, an encoding system and a decoding system can be obtained color pictures with higher definition, so that color difference signals in a format of the macroblock of 4:4:4 are encoded by a circuit 102. These color difference signals with the highest definition are down-sampled by a down sampling circuit 103 and then encoded by a circuit 101. These color difference signals with intermediate definition are further down-sampled by a down sampling circuit 104 to produce the color difference signals with the lowest definition. These color difference signals in a format of the macroblock of 4:2:0 are supplied to and encoded by a circuit 100. Data output from the circuits 100, 101, and 102 are composed by a combining circuit 105 and transmitted.

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Coded Representation of Picture and Audio Information, pp. 127-134, authored by ISO, referred to as ISO-IEC/JTC1/SC29/WG11 N0328, (AVC-400), published on Nov. 25, 1992.
Coded Representation of Picture and Audio Information, pp. 89-90, authored by ISO, referred to as ISO-IEC/JTC1/SC29/WG11 N0400, (AVD-491b), published on Apr. 1993.
Information Technology, Generic Coding of Moving Pictures and Associated Audio, Recommendation H.262, ISO/IEC 13818-2, Committee Draft, pp. 83-90, authored by ISO, referred to as ISO/IEC JTC1/SC29, WG11/602, published Nov. 5, 1993.

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