Video coding and decoding system and method

Details Video coding and decoding system and method Video coding and decoding system and method

1996-12-12

2000-01-25

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348403, 348395, 382232, H04N 712, H04N 1102, H04N 1104

Patent

active

060183667

ABSTRACT:
A video encoder for quantizing format-transformed source input-pictures into quantized data, and for coding the quantized data into coded bitstream, for outputting the coded bitstream, comprises a plural-density format-transformer for transforming a source input-picture into a specific format-transformed source input-picture; and a detector for detecting a variation in one of a specific luminance and color difference signal, and for selecting the specific format-transformed source input-picture for input to the quantizer depending on the variation. A decoder having a corresponding configuration is also provided.

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ISO/IEC 13818-2 MPEG 2 video (abstract), Journal of Television Society (of Japan), vol. 49, No. 4, pp. 435-466 (1995), with partial English language translation.

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