Method and apparatus for encoding using variable length codes

Details Method and apparatus for encoding using variable length codes Method and apparatus for encoding using variable length codes

1990-07-24

1991-09-03

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358433, H04N 712

Patent

active

050459384

ABSTRACT:
A video signal is transformed into first blocks each containing transform coefficients. A plurality of adjacent first blocks are combined into a single second block. Transform coefficients of the second block are rearranged, and transform coefficients of equal-components of the first blocks are made successive to form sucessions of the transform coefficients of the equal-components of the first blocks. The successions are arranged in a predetermined order to compose a one-dimensional sequence of the transform coefficients. Non-zero transform coefficients of the sequence are encoded into corresponding variable-length codes. Successively-appearing zero transform coefficients of the sequence are encoded into a corresponding variable-length code.

REFERENCES:
patent: 4805030 (1989-02-01), Tanaka
patent: 4821119 (1989-04-01), Gharavi
patent: 4920426 (1990-04-01), Hatori et al.
patent: 4951157 (1990-08-01), Koh et al.
"Efficiency Comparison for Entropy Coding Methods of Coefficients in MC/DCT Hybrid Coding" by M. Ohta et al.; Picture Coding Symposium, Japan, 1986 (PCSJ86).
"Comparison for Some Entropy Coding Methods in Color Still Picture Coding" by Y. Tsuboi et al.; Picture Coding Symposium, Japan, 1987 (PCSJ87).

Affiliated with

Also associated with

Rating

Method and apparatus for encoding using variable length codes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for encoding using variable length codes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for encoding using variable length codes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1013216