Motion video coding with adaptive precision for DC component coe

Details Motion video coding with adaptive precision for DC component coe Motion video coding with adaptive precision for DC component coe

1993-09-28

1996-09-24

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

H04N 730

Patent

active

055595570

ABSTRACT:
Direct current component coefficients resulting from an orthogonal transformation of a video signal are encoded with a precision, expressed in terms of quantization bits, which may be varied at each video sequence, group of pictures, picture, slice, macroblock or block portion of the video signal in accordance with a required picture quality. The encoded coefficients may be decoded in accordance with the precision used during encoding.

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