Video signal encoding method and apparatus employing inter-block

Details Video signal encoding method and apparatus employing inter-block Video signal encoding method and apparatus employing inter-block

1996-12-27

1998-03-03

Lee, Richard

Television

Bandwidth reduction system

Data rate reduction

348405, 348420, 382250, H04N 730

Patent

active

057240965

ABSTRACT:
A frame of a video signal, wherein the frame is divided into non-overlapping blocks of M.times.N pixels, M and N being positive integers, respectively, is encoded by: arranging the blocks into groups of P.times.Q blocks, P and Q being positive integers, respectively; transforming each of the P.times.Q blocks in a group into a set of M.times.N transform coefficients to thereby provide for the group a first class of transform coefficients corresponding to P.times.Q sets of M.times.N transform coefficients, transform coefficients in a set representing different frequency components, respectively; rearranging the first class of transform coefficients to generate M.times.N sets of P.times.Q rearranged coefficients, the rearranged coefficients in a set being of an identical frequency component; transforming each set in the M.times.N sets of P.times.Q rearranged coefficients into a set of P.times.Q transform coefficients to thereby provide a second class of transform coefficients corresponding to the transform coefficients of the M.times.N sets of P.times.Q rearranged coefficients; and setting the second class of transform coefficients as selected coefficients for the group of P.times.Q blocks.

REFERENCES:
patent: 5146324 (1992-09-01), Miller et al.
patent: 5168375 (1992-12-01), Reisch et al.
patent: 5196930 (1993-03-01), Kadono et al.
patent: 5272528 (1993-12-01), Juri et al.
patent: 5311310 (1994-05-01), Jozawa et al.
patent: 5351086 (1994-09-01), Park
patent: 5369439 (1994-11-01), Matsuda et al.
patent: 5475432 (1995-12-01), Park
patent: 5563718 (1996-10-01), Wober et al.

Affiliated with

Also associated with

Rating

Video signal encoding method and apparatus employing inter-block does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video signal encoding method and apparatus employing inter-block, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal encoding method and apparatus employing inter-block will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2253114