Method and apparatus for processing a picture signal having mean

Details Method and apparatus for processing a picture signal having mean Method and apparatus for processing a picture signal having mean

1995-10-24

2000-02-01

Tran, Thai

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 40, 386112, 386124, 348391, H04N 592

Patent

active

060212497

ABSTRACT:
A system for processing a picture signal, compression coding the picture signal in units of macro-blocks and packeting the compressed picture data into sync blocks for transmission or recording of the picture signal, in which a plurality of sub-blocks Y(0-3), R-Y, and B-Y contained in the same macro-blocks MB0-MB3 are distributed to different sync blocks #0-#3 and, by forming such sync blocks #0-#3, blocks difficult to quantize and blocks easy to quantize can be dispersedly distributed to the sync blocks #0-#3 in fine units and, thereby, the sync blocks #0-#3 can be averaged so as to have flatness at a high level. As a result, when quantization is performed such that the quantity of data in the sync blocks #0-#3 are equal with one another, deterioration in the quality of picture due to quantization can be reduced.

REFERENCES:
patent: 5301018 (1994-04-01), Smidth et al.
patent: 5488482 (1996-01-01), Ueda et al.
patent: 5521898 (1996-05-01), Ogasawara
patent: 5537215 (1996-07-01), Niimura et al
patent: 5543845 (1996-08-01), Asamura et al.
patent: 5550640 (1996-08-01), Tsuboi et al.
patent: 5557420 (1996-09-01), Yanagihara et al.

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